Newsletter Vol. 1 Fall 2016

Director's Message ational Center for Theoretical Sciences has provided the most important platform for Nthe collaboration and interaction among Taiwanese mathematicians since its establishment in August, 1997, supported by Ministry of Science and Technology, Taiwan. After serving the Taiwan- ese mathematical community for nearly two dec- ades, we are lunching our first Newsletter and ex- pect a further promotion of mathematical research in Taiwan.

We in fact consider 2016 as a turning point of NCTS Staff NCTS history, marked by strengthened research collaboration both domestically and globally. We ars, which are unique and different from their usual worked with Institute of Mathematics of Academia curriculum. Sinica, Taiwan, and organized 2016 Taipei mathe- matical Seminar for postdocs and young research- We are bearing the missions to build a bridge ers. Thanks to the cooperative programs with our between real-world challenges and academic neighboring research institutes, such as RIMS in achievements. Data science has been a very hot Japan and KIAS in Korea, we sent young research- topic that theoretical mathematical research could ers to Japan and Korea for international academic and should play the fundamental and pivotal role. exchange. NCTS scientific members are all trying With the assistance of Prof. Hau-Tieng Wu (Uni- our best to make NCTS more internationally well- versity of Toronto) and Weichung Wang (National known as a contribution to the advancement of Taiwan University), we have enlarged the existing mathematical knowledge in Taiwan and the world. Big and Complex Data Analysis Program into a Lab- We are initiating cooperative programs and joint oratory of Data Science at NCTS. The main goal of activities with MSRI, PIMS, and other institutes LDS at NCTS is to study the mathematical models around the world. Our efforts are expected to bring for data processing in medical research. Forum of in further research opportunities for both Taiwan- Data Science is organized every month as a plat- ese and visiting scholars. form for mathematicians, statisticians, physicians and other experts to gather for idea exchange and Youth training and youth empowerment have been problem solving. the major goal of NCTS since its foundation. Many of our new generations, both math majors and non- NCTS is dedicated to providing a pleasant envi- math majors; both Taiwanese and international ronment for researchers to conduct cutting-edge students, have benefited from our large variety research, while I think the key factor to turn a re- of summer courses and boot-camps, whose top- search center successful is to bring people togeth- ics have covered, for example, geometry, elliptic er. By bringing people together, ideas get generat- curves, probability, mathematical biology, optimiza- ed, insights get emerged, innovations get driven, tion, etc. in 2016. Students are highly encouraged and amazing adventures get started. Welcome to to attend the intensive research-oriented lectures NCTS! Wherever you are, come and enjoy our col- given by both Taiwanese local and visiting schol- laboration.

Inside: NCTS Research/Event Spotlights Chat with Professor Richard Schoen Chat with Researcher Inspired by NCTS Postdocs All Over the World NCTS Director Review from NCTS International Scholars Prof. Jungkai Chen

1 Highlights of Events Newsletter

Conferences & Workshops NCTS Event/Research Spotlights Data Science in Health Analytics 21-23 May Mathematical Biology 24-26 May Geometric Analysis and Su- An Interdisciplinary Team Sets-off for Math- belliptic PDEs ematical Foundations of Data Science with 30 May-3 Jun AS-NCTS Workshop on Shi- Applications in Healthcare mura Varieties and Related Topics 6-8 Jun PMI-NCTS Workshop in Prof. Weichung Wang (Institute of Applied Number Theory Mathematical Science, National Taiwan Uni- 11-15 Jul Pan Asia Number Theory versity) Conference 15-18 Aug China, Hong Kong, Taiwan Joint Conference on Dynam- long the path to promote data sci- ical Systems ence at NCTS, nine researchers have 22-26 Aug Finite Groups and Vertex Al- Aformed an interdisciplinary team to gebras tackle some of the most demanding big data challenges. This interdisciplinary team Upcoming Events includes experts from ecosystem, medicine, mathematic, statistic, high-performance 8-13 Sep Japan-Taiwan Joint Confer- computing, engineering, and data visualiza- ence on Number Theory tion. They are working together to develop 5-6 Nov 2nd East Asia Section of IP- fundamental tools to extend the frontier ana- IA-Young Scholars Symposi- lytic capabilities of big data and to apply the um 18-19 Nov Nonlinear Differential Equa- developed tools to solve healthcare prob- tions: Theory and Applica- lems arising from the real world. tion 13-17 Dec The First Japan-Taiwan Joint The team concentrates their efforts on a Conference on Differential project entitled as Mathematical Founda- Geometry tions of Data Science with Applications in Healthcare. This ambitious project is appre- Summer Schools ciated by The Ministry of Science and Tech- nology, Taiwan, and has received a budget 4-7 Jul Geometric Analysis of $14,2000 USD per year. 4-8 Jul Mathematical Modeling and Analysis of Infectious Dis- The project aims to develop several funda- eases 14 Jul-1 Sep Modeling for Stochastic Pro- mental analytical and computational tools cess in Cell Biology based on mathematics, statistics, high-per- 25 Jul-12 Aug Elliptic Curves and Complex formance computing and visualization Manifolds technologies. The key technologies under 25 Jul-5 Aug Probability development include time-space big data 1-24 Aug Mathematical Biology analysis, matrix visualization, GPU high-per- 2-5 Aug Fractional Sobolev Spaces formance numerical computations, low-rank in Geometric Knot Theory matrices analysis, mixed data type visualiza- 2-11 Aug Number Theory tion, and time-frequency analysis of physiol- 5 Aug-16 Sep Dynamical Systems: Topo- ogy signals. logical and Arithmetic Dy- namics These tools can not only advance big data 15-19 Aug Optimization: Theory and Mathematical Models analytics but also benefit several essential healthcare issues. The team plans to apply

2 Newsletter NCTS Research/Event Spotlights Courses

23 Feb-7 Jun High-Performance Linear the developed key technologies to ana- System Solvers lyze government collected and clinical big 15 Feb-21 Jun Abelian Varieties and Relat- data in air quality, climate, healthcare, and ed Topic 1 Feb-31 Jul Arithmetic Geometry and medical advice. Accordingly, we can build Representation Theory the prediction models, detecting method, data matrices visualization of PM2.5, along Distinguished Lectures with heterogeneous data mix visualization between PM2.5 and health cloud, instant 9,14,21 Mar Luc Illusie monitor, interpretation, medical treatment of (Université Paris-Sud) anesthesia, and critical care medicine. Nearby Cycles Over Gener- al Bases and Thom-Sebas- To deliver innovative and practical analytical tiani Theorems tools and to improve the quality of healthcare 5,7 Jul John Coates from the developed tools, the team focuses (University of Cambridge) on the following six sub-projects. On the Conjecture if Birch and Swinnerton-Dyer for Quadratic Twists of X_0(49) 1. Space-Time Dynamics of Ambient Air 11 Jul Horng-Tzer Yau Pollutants (Harvard University) 2. Applications with System Development Spectral Statistics of Ran- for Matrix Visualization on Healthcare dom Graphs Data 3 Aug Richard Schoen 3. High-performance Matrix Computa- (Stanford University) tions on GPU for Big Data Steklov Eigenvalues and 4. Low-Rank Matrix Analysis and Data Free Boundary Minimal Sur- Feature Extractions faces 5. Big Data Visualization for Hybrid Data in Air Pollution and Healthcare NCTS and PIMS Forge an Agreement to 6. Realtime Frequency-Time Analysis and Advance Taiwanese-Canadian Mathemat-

Its Application in Clinical Signals ical Sciences National Center for Theoretical Sciences (NCTS) The team is dedicated to the advancement and Pacific Institute for the Mathematical Sciences and communication of fundamental knowl- (PIMS) have announced the formation of a five- edge in data science by supporting NCTS year partnership to promote discovery in mathe- seminars and forums on data science. Prof. matical sciences through collaborative research activities. Wang arranged a course entitled as NCTS 2016 Short Courses on High-Performance PIMS, a distributed institute supporting 10 univer- Linear System Solvers for spring semester sities, has 20 year experiences of promoting re- at National Taiwan University. This course is search, facilitating education outreach and enrich- designed for fundamentals of iterative linear ing the public’s awareness of mathematics. The member universities of PIMS include Universities system solvers, fast multipole methods, and of Alberta, British Columbia, Calgary, Lethbridge, high-performance numerical solvers with Manitoba, Regina, Saskatchewan, Simon Fraser applications. He also coordinated NCTS University, Universities of Victoria and Washing- Workshop on Recent Development of Ma- ton. trix Computations in May, with international speakers invited from Georgia Institute of “This partnership instantly leverages current activities at NCTS and PIMS in differential geometry and the Technology, Monash University, and Temple mathematics of information,” said James Collian- University. der, Director of PIMS. “Our agreement widens the opening collaboration for researchers in North Ameri- ca and Taiwan.”

3 Newsletter

NCTS Research Highlights charts, medical images, etc., and his exceptional Prof. Hau-Tieng Wu (University of Toronto) approach to obtaining these features is the appli- As a coordinator of the above mentioned interdis- cation of nonlinear time-frequency analysis. With ciplinary team directed by Prof. Weichung Wang, these extracted features, he is developing high Hau-Tieng Wu shares his experiences in support- dimensional data analysis techniques with focuses ing the project, Realtime Frequency-Time Analysis on the nonlinear low dimensional structure, with and Its Application in Clinical Signals. manifold and metric measure space involved. He also conducts research on the statistical behavior As Newton’s laws of motion were established to of the proposed algorithms, which is combined model the real world, we are writing the same story with other applications to mathematically predict in data analysis – collected data is nothing but an the outcomes, and contributes to the classification observation of the world, so what is the underlying and clustering algorithms for multiple purposes. rule as a guideline for these observations? The research topics he is supporting NCTS are multidisciplinary, but the key focus is always on ex- As an applied mathematician, Hau-Tieng Wu ded- tracting intrinsic features from the massive dataset icates himself to building up mathematical founda- to observe our real-world-problems, expected to tions of massive data analysis, and its application advance our medical technology. to medicine. His goal is use sophisticated meth- ods to extract medically related information based Our every effort is made for solving real-world-is- on the data collected from the standard medical sues based on mathematical solutions. We bear environment. He attempts to figure out mathemat- two missions in the long journey – theoretically ical solutions to completely understand the anal- understand the features we and Taiwan are con- ysis procedure, accurately model the scientific cerned, while make sure the proposed model and observations, and quantify the analysis reports. analysis reports are practical solutions to our He supports our team to gain essential knowledge clinical problems. by co-organizing NCTS Forum in Data Science once a month regularly to make sure our analysis reports getting well interpreted and applied, and this event gets globalized by welcoming people to join personally or via skype. He works on striking a balance among various fields, including mathemat- ics, computer science, electrical engineering and medicine. He in particular has applied his back- ground knowledge in medicine to the interdiscipli- nary collaboration between the two extreme fields, mathematics and medicine. Research Group Led by Simone Fiori (Università Politecnica)

The gap between medicine and mathematics is NCTS Course on Light Performance Linear System Solvers getting widening throughout the past few decades. By realizing the need of interdisciplinary research with the development of explosives technology, NCTS is trying its best to dynamically reunite these two fields. Hau-Tieng contributes to extract suitable features reflecting physiological dynamics from di- verse datasets, including electrocardiogram, respi- ration, contact/non-contact photophlethemogram, electroencephalogram, clinical questionnaire and

4 Chat with Professor Richard Schoen

Professor Richard Schoen is an American mathematician who has supported the development of NCTS more than 10 years. We are honored to have him as our 2016 NCTS Distinguished Scholar who will conduct his research at our center for 3-6 months starting from December 2016. He has considered himself as a reg- ular visiting scholar at NCTS, and he plans to spend Christmas with his family here in our lovely Taipei this year.

rofessor Schoen is a ences at MSRI and Stanford Uni- Free Boundary Minimal Surfac- world-leading figure in versity. During his long-term visit, es, enlightening our researchers Pdifferential geometry, ge- Schoen plans to give lectures of deeply as usual. ometric analysis, and mathe- geometry once or twice a week. matical relativity. He is Anne T. He also plans to support our “Once visitors enjoy their collab- and Robert M. Bass Professor long-term scientific programs in oration here, they are happy to in the School of Humanities and core fields to connect theoretical visit again for the same topics. Sciences at Stanford Universi- and applied prospects. He ap- This helps establish powerful ty, Distinguished Professor at preciates the opportunity we pro- connection between NCTS and University of California, Irvine. vide for him to interact with other active scholars around the world. Schoen was awarded The scientists and the quiet office for A key idea is to repeat the same MacArthur Fellowship in 1983, him to concentrate on his work. and The Bôcher Memorial Prize topics. Then the same group of We also sincerely appreciate his for his contribution on Yama- people repeat coming back every great passion and inspiration be problem in 1989. He joined one or two years, like in Ober- American Academy of Arts and to NCTS and we look forward wolfach.” Sciences in 1988 and National to meeting more world-leading Academy of Sciences in 1991, scholars like him at NCTS. Despite of his busy schedule, winning the Guggenheim Fel- Schoen has always been kind to lowship in 1996. He became a “High-level research activities spend time with us discussing fellow of American Mathematical organized by NCTS are the key our strategies to promote scien- Society in 2012, and a Senior factors to attract people all over tific research in Taiwan. Schoen Scholar at NCTS in 2013. He the world to come. Regular work- appreciates all NCTS scientists’ serves as the vice president of shops on the same topics with dedications to the collaboration American Mathematical Society eminent scholars involved are and networking of mathematical between 2016 and 2019. important, so active researchers research all over Taiwan, and he from the backgrounds visit con- will join our mission by organ- stantly.” izing an international workshop in December, 2016. He appre- On July 28, 2016, in a precious ciates the tight connection we networking entitled Meet with build for scientists with various Professor Huisken & Professor disciplines from different culture Schoen, Schoen shared his ex- backgrounds to meet up and periences with our NCTS schol- discuss their research works. ars about his perspectives and solutions for geometric analysis. “To run a mathematical center He has participated in the im- All the seats in the conference successfully, it’s important to provement of our center by join- room were occupied, and all of have right people running good ing our executive committee for our senior and junior scholars programs … You have a very developing a framework of our enjoyed the networking led by active director to run scientific scientific programs. We are sin- Professor Huisken and Professor programs.” cerely grateful for his kind sup- Schoen, the two world-leading port for our advancement and mathematicians visiting NCTS. “The library at NCTS is amaz- communication of mathematical On August 3, 2016, Schoen ingly nice, even comparable with sciences in Taiwan and abroad gave a distinguished lecture en- Oberwolfach (the famous visiting by sharing his precious experi- titled Steklov Eigenvalues and math center in Germany).”

5 Newsletter

Schoen has visited Taiwan for them, either based on MA or ademia after Ph.D., you seem to several times since 1991 for re- Ph.D. level …” miss your goal. The atmosphere search programs organized by has changed nowadays. There NCTS, and he has supported the Schoen has also taken part in are many other options, like fi- development of NCTS for more our mission for young-research- nancial industry, and software than 10 years. By coming here er-training program. He is sup- companies.” from time to time over the 20 porting us to arrange a platform years, Schoen has experienced for our Ph.D. and postdocs to In the end of interview, Schoen the change of Taipei – more consult and explore their career shared his view on the research modernized, more artistic, more after finishing their research at topics in differential geometry populated, more international, NCTS. We all want to make sure and geometric analysis, which and more attractive. our NCTS young researchers to young scholars could devote gain advanced and interdiscipli- into in the future. “Taipei is naturally an attractive nary knowledge in sciences and city… for a while, I visited Taipei documented experiences in any “… various geometric flows, e.g. twice per year … (laugh!) May is specific fields with recommenda- mean curvature flows, Ricci flows a good time for people in US to tions for future as well as a wide in 4-manifolds, differential geom- visit. Late September, a break network of contacts. etry around physics (e.g. general between two quarters, is also a relativity, string theory, special good time to visit for people in “Without visible future careers, it Lagrangian submanifolds), basic universities of California.” would be hard to convince stu- directions in Riemannian ge- dents to math Ph.D. programs. ometry (e.g. we know very little Schoen especially has actively It’s important to find and create about positively curved manifolds joined us to bear the missions for jobs for Ph.D. candidates, and of dimension greater than three, building a bridge between aca- that’s a responsibility of research besides the isolated example of demic and professional achieve- institutes. Platforms for job mar- pinching theorem), submanifold ments in Taiwan. He is support- ket trends and news are very geometry, geometric variational ing us to set up a platform for useful for information exchange.” problems, minimal submanifolds cooperation between industries and related mean curvature flows and research in which people “In the past, if you don’t go to ac- ...” from industries present their dif- ficulties and our scholars figure out mathematical solutions. Meet with Gerhardt Huisken (University of Tübingen) and Richard Schoen (Stanford University)

“Compared with industries in the States, those in Taiwan might not be so research-oriented. But there should be some Taiwanese industries needing mathema- ticians for their development. Networking with industries would be good. It may eventually create connection between mathemat- ical community and industries. Invite people from industries to present their problems, regard- less of their mathematics level, and then we try to see how our mathematicians could support

6 Chat with Researcher Inspired by NCTS

Visiting Scholar John Coates (University of Cambridge)

Chat with Researcher Inspired by NCTS

Katsuhisa Furukawa was one of the most active participants of NCTS academic events. He received his Ph.D at Waseda University, and then worked as a research associate there. He is now a postdoc at Japan Society for the Promotion of Science, The University of Tokyo.

worked as a research fellow at National Taiwan I worked as one of the organizers for internation- University (NTU) from August 2014 to May 2016. al workshops supported by NCTS, and I felt that I I enjoyed the academic community NCTS had NCTS created a friendly environment for people built with NTU, and I appreciated that NTU and from multicultural backgrounds to communicate NCTS’s support to me once I started to stay in Tai- very excitedly and got inspired greatly for their fur- wan. ther research. Remarkably, NCTS was dedicated to creating opportunities for scholars to study in new I had opportunities to give talks at international subjects outside of their own specialties. conferences organized by NCTS and benefited from its research atmosphere. The participants The benefits I gained from NCTS are still signifi- of the conferences came from all over the world, cant for me even I’m already back in Japan. I’m and each of them was a specialist in an important now working on my publications Family of Rational research field of algebraic geometry. I got many Curves on Hypersurfaces, and Gauss Maps and comments from people all over the world, which Dual Defects of Projective Varieties (a joint work was helpful to improve my research. NCTS peri- with Atsushi Ito, Kyoto University). The projects odically invited international excellent speakers, got started when I was in NCTS. I met Ito at NCTS, such as Yujiro Kawamata (University of Tokyo) and where we began our discussion about our joint Caucher Birkar (University of Cambridge), from work. (By the way, Ito and I went to NCTS work- whom I gained valuable suggestions. shops together, and deeply fell in love with Tai- wanese tea together, and then we visited many tea shops and got good tea leaves!)

7 Newsletter

NCTS Visiting Scholars Edmond Chow (Georgia Institute of Technology) and Daniel Szyld (Temple University)

Let’s read the stories of 2015-2017 NCTS Postdocs about how they think NCTS has supported their career development and training. They play a vital role of our intellectuals and research strength.

Chi-Kwong Fok Tsz On Mario Chan got his Ph.D. at Cornell University. While working completed his Ph.D. at The University of Bayreuth. as a NCTS postdoc, he is an assistant professor at He was a research fellow at Korea Institute for Ad- National Tsing Hua University, Taiwan. vanced Study (KIAS-CMC).

am given complete freedom at NCTS to inde- am grateful that the NCTS doesn’t evaluate my pendently pursue research topics I am interest- research simply by the number of my publica- I ed in. The senior researchers here care about Itions, and I will have sufficient time to turn my the juniors’ research development, and they gen- current work perfect, which is particularly helpful erously offer advice and help. The seminars NCTS to a new postdoc working on a new topic after they organizes regularly on geometry and topology have just finished their Ph.D. have helped me explore and expand my research interests, and I am grateful for the generosity of NCTS to support me to attend various research events internationally. I would say NCTS has of- fered more than I had expected for a research in- stitute. ______

Workshop on Recent Development of Matrix Computations

8 Postdocs All Over the World

NCTS supported my visits to many cities in Taiwan and Japan for academic events, and I was permit- ted for an academic visit at Institute Fourier in Gre- noble, France, for 2 months. I am confident that my research of the past few years is going to turn fruit- ful soon, with NCTS as an important contribution to my success. ______

Zhengyu Hu Visiting Scholar Paul Hamacher (Technische Universität München) was once a research associate at University of Cam- bridge, and a visiting scholar at the Center of Math- ematical Sciences, Zhejiang University. Postdoc Gyeongha Hwang, from Korea

s a young postdoc, I am so lucky to receive many supports from the experienced pro- Afessors at NCTS, such as Yujiro Kawamata. NCTS has arranged regular events on a variety of topics and opened stimulating conversations for scholars, which is the collaboration needed by young scholars. Guidance and help from profes- sors are extremely important and necessary for early researchers, and NCTS has created a plat- form for meeting friendly professors. ______

Gyeongha Hwang graduated from Pohang University of Science and Technology. He was a visiting assistant professor at Ulsan National Institute of Science and Technology.

CTS postdocs come from all over the Postdoc Nadiam Rustom, from Lebanon world and they have various majors, which Catalin Carstea is different from any institute I have worked N graduated from The University of Chicago. He was at, without such diversity as NCTS. I had had en- a visiting assistant professor at University of Roch- countered frustrations about the physical meanings ester, a lecturer at The University of Chicago, and a of partial differential equation, and I never had any lecturer in physics at Brockenhurst College. chance to talk about them before I came to NCTS. Now, at NCTS, with so many experts in mathemat- or other research institutes, postdocs may ical physics, I have finally figured out some physi- have more teaching duties than tenured pro- cal meanings of each equation by making conver- Ffessors. I’m fortunate to work at a research sation with them, which has motivated me to solve institute like NCTS, so I’m allowed to return to re- the equation. search without interruption of a two-course-per-se- ______mester teaching load. I appreciate NCTS’s financial

9 Newsletter

Summer Course Lectured by Jonathan Dushoff (McMaster University)

support for me to attend conferences in both Tai- ______wan and abroad. As a foreigner, I’ve experienced the life at the tropics and got acquainted with new Rulin Kuan cultures, which gives me energy for my research. was a junior specialist at University of California, ______Irvine. She was awarded as an Outstanding Postdoc by Ministry of Science and Technology, Taiwan. She is now an assistant professor at National Cheng Đặng Tuấn Hiệp Kung University, Taiwan. graduated from University of Kaiserslautern, Ger- many. He was a lecturer at University of Dalat, CTS is located at National Taiwan Univer- Vietnam, and a visiting scholar at University of sity, with the richest academic resources Kaiserslautern. Nin Taiwan. NCTS has successfully created met NCTS Director, Prof. Jungkai Chen at a cooperation opportunities with three other research conference in Vietnam, and that was a great op- institutes located at NTU, including Department I portunity to discuss with him about a postdoc of Mathematics, Taida Institute for Mathemati- position in Taiwan. cal Sciences, and The Institute of Mathematics, Academia Sinica. I have often attended various In NCTS, I work for a research group on algebraic activities co-organized by NTU, NCTS, TIMS and geometry led by Director Chen, and we have visi- AS, and the community shares the most academic tors to join us from time to time. I was selected for resources in Taiwan. I appreciate NCTS as a good an exchange program signed by NCTS and KIAS, place for me to concentrate on my learning and which has created a great opportunity for me to research; besides, NCTS has supported me to at- discuss with Prof. Bumsig Kim at KIAS for my pub- lications. tend international conferences abroad. ______

10 Postdocs All Over the World

Yunchang Seol ing restaurants around NCTS, including Chinese, graduated from Chung-Ang University, South Ko- Japanese and other international cuisines, which rea. He was an instructor in calculus at Chung-Ang were definitely significant for my research! University. I really appreciate the kindness of the Taiwanese very time I visit universities in my home, Ko- researchers at NCTS, who had become my lifelong rea, I suggest students to apply for a post- friends. They helped me a lot, and that made my doc position at NCTS, the freest research E research memories in Taiwan even more valuable. environment. NCTS doesn’t ask postdocs for extra works, so we can always focus on our own research. I hope and recommend that people de- siring an amazing environment for research to take such a golden opportunity at NCTS. ______

Postdoc Alumni His memories at NCTS are still vivid even he had already left NCTS for 4 years, and let’s read how deeply he misses his life here! Visiting Ph.D. Student Isao Ishikawa, from Japan Tatsuki Hayama got his Ph.D. at Osaka University. He was a postdoc at Universite Paris 13, invited researcher at The Japan-U.S. Mathematics Institute (JAMI), and a vis- iting assistant professor at Tsinghua University. He is now a lecturer at Department of Business Admin- istration, Senshu University.

was a postdoc at National Taiwan University from 2010 to 2012. My mentor at that time was I the current NCTS Director, Prof. Jungkai Chen, who provided me a nice environment for research. Postdoc Raoul Normand, from France I had enough time to discuss with my mentor and his students, by which I could concentrate on my Postdoc Catalin Carstea, from Romania own research interests and broaden my knowledge about all the related subjects.

It was my first visit to Taiwan and I didn’t know Mandarin at all; I however didn’t encounter any trouble getting used to living in Taiwan, thanks to NCTS’s genuine hospitality. They arranged a dorm room for me close to the campus, and the service was great for foreigners. There were various amaz-

11 Newsletter Review from NCTS International Scholars

search at NCTS. As I work at NCTS longer, I have experienced deeper how well-structured the center is. This good structure is represented by the com- mittee who governs NCTS’s research programs, including scientific members, center scientists, NCTS scholars, and distinguished scholars. Rota- tion policies are applied, which keeps the center refreshed and strengthened. I am planning to or- ganize several workshops in 2017 and 2018 for dy- namical systems and the related topics, which will Yunping Jiang (The City University of New York) create chances for my collaborators to visit NCTS, Prof. Yunping Jiang is a Distinguished Professor at the international research center. The City University of New York, and he has worked at many mathematical institutes around the world, including Institut des Hautes Études Scientifiques (IHES), Institute for Mathematical Research (FIM)- ETHZ, Academy of Mathematics and Systems Sci- ence (AMSS), and Chinese Academy of Sciences (CAS). He has served as an editor of Transactions and Memoirs of American Mathematical Society.

CTS has made workshops and conferenc- es in dynamical systems successful – the William C. Abram (Hillsdale College) Nfriendly director and the best staff sup- port and form a professional team. I have visited Newsletter Editors: many research centers for mathematical sciences Prof. Chunchi Lin (NTNU) around the world, and NCTS is a very established Loreina Wen Ling Hsien (NCTS) one from the service point of view. NCTS arranges airport pick-up and accommodation for every sin- National Center for Theoretical Sciences gle visitor, which is a significant factor to evaluate No. 1 Sec. 4 Roosevelt Rd., such a center. NCTS has done very well to promote National Taiwan University the research of dynamical systems in Asia, and it’s Taipei, 106, Taiwan a great place to communicate with my colleagues. http://www.ncts.ntu.edu.tw/ I could name a lot of active researchers in dynam- ical systems who have visited and conducted re-

2016 China, Hong Kong, Taiwan Joint Conference on Dynamical Systems

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