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Caucher Birkar — from Asylum Seeker to Fields Medal Winner at Cambridge
MATHS, 1 Caucher Birkar, 41, at VERSION Cambridge University, photographed by Jude Edginton REPR O OP HEARD THE ONE ABOUT THE ASYLUM SEEKER SUBS WHO WANDERED INTO A BRITISH UNIVERSITY... A RT AND CAME OUT A MATHS SUPERSTAR? PR ODUCTION CLIENT Caucher Birkar grew up in a Kurdish peasant family in a war zone and arrived in Nottingham as a refugee – now he has received the mathematics equivalent of the Nobel prize. By Tom Whipple BLACK YELLOW MAGENTA CYAN 91TTM1940232.pgs 01.04.2019 17:39 MATHS, 2 VERSION ineteen years ago, the mathematics Caucher Birkar in Isfahan, Receiving the Fields Medal If that makes sense, congratulations: you department at the University of Iran, in 1999 in Rio de Janeiro, 2018 now have a very hazy understanding of Nottingham received an email algebraic geometry. This is the field that from an asylum seeker who Birkar works in. wanted to talk to someone about The problem with explaining maths is REPR algebraic geometry. not, or at least not always, the stupidity of his They replied and invited him in. listeners. It is more fundamental than that: O OP N So it was that, shortly afterwards, it is language. Mathematics is not designed Caucher Birkar, the 21-year-old to be described in words. It is designed to be son of a Kurdish peasant family, described in mathematics. This is the great stood in front of Ivan Fesenko, a professor at triumph of the subject. It was why a Kurdish Nottingham, and began speaking in broken asylum seeker with bad English could convince SUBS English. -
Prvních Deset Abelových Cen Za Matematiku
Prvních deset Abelových cen za matematiku The first ten Abel Prizes for mathematics [English summary] In: Michal Křížek (author); Lawrence Somer (author); Martin Markl (author); Oldřich Kowalski (author); Pavel Pudlák (author); Ivo Vrkoč (author); Hana Bílková (other): Prvních deset Abelových cen za matematiku. (English). Praha: Jednota českých matematiků a fyziků, 2013. pp. 87–88. Persistent URL: http://dml.cz/dmlcz/402234 Terms of use: © M. Křížek © L. Somer © M. Markl © O. Kowalski © P. Pudlák © I. Vrkoč Institute of Mathematics of the Czech Academy of Sciences provides access to digitized documents strictly for personal use. Each copy of any part of this document must contain these Terms of use. This document has been digitized, optimized for electronic delivery and stamped with digital signature within the project DML-CZ: The Czech Digital Mathematics Library http://dml.cz Summary The First Ten Abel Prizes for Mathematics Michal Křížek, Lawrence Somer, Martin Markl, Oldřich Kowalski, Pavel Pudlák, Ivo Vrkoč The Abel Prize for mathematics is an international prize presented by the King of Norway for outstanding results in mathematics. It is named after the Norwegian mathematician Niels Henrik Abel (1802–1829) who found that there is no explicit formula for the roots of a general polynomial of degree five. The financial support of the Abel Prize is comparable with the Nobel Prize, i.e., about one million American dollars. Niels Henrik Abel (1802–1829) M. Křížek a kol.: Prvních deset Abelových cen za matematiku, JČMF, Praha, 2013 87 Already in 1899, another famous Norwegian mathematician Sophus Lie proposed to establish an Abel Prize, when he learned that Alfred Nobel would not include a prize in mathematics among his five proposed Nobel Prizes. -
Cédric VILLANI: Curriculum Vitae (Last Updated August 4, 2012)
C´edric VILLANI: Curriculum Vitae (last updated August 4, 2012) Professor of the Universit´ede Lyon Director of the Institut Henri Poincar´e 11 rue Pierre et Marie Curie, F-75230 Paris Cedex 05, FRANCE. Tel.: +33 1 44 27 64 18, fax: +33 1 46 34 04 56. E-Mail: [email protected] Internet address: http://math.univ-lyon1.fr/~villani Personal information - Born October 5, 1973 in Brive-la-Gaillarde (France); french citizen - age 38, two children - languages: french (native), english (fluent), italian - hobbies: walking, music (piano) Positions held - From 2000 to 2010 I have been professor (mathematics) in the Ecole´ Normale Sup´erieure de Lyon, where I did research and teaching up to graduate level. In September 2010 I moved to the Universit´eClaude Bernard Lyon I. - Since July 2009 I am director of the Institut Henri Poincar´e(Paris), where I do research and administration. I am the coordinator of the CARMIN structure, which gathers the four international french institutes for mathematics: CIRM, CIMPA, IHP, IHES.´ - Invited member of the Institute for Advanced Study, Princeton (January–June 2009) - Visiting Research Miller Professor at the University of Berkeley (January–May 2004) - Visiting Assistant Professor at the Georgia Tech Institute, Atlanta (Fall 1999) - Student, then agr´eg´e-pr´eparateur (“tutor”) at the ENS, Paris (1992-2000) Diplomas, titles and awards - Fields Medal (2010) - Fermat Prize (2009) - Henri Poincar´ePrize of the International Association of Mathematical Physics (2009) - Prize of the European Mathematical Society (2008) - Jacques Herbrand Prize of the Academy of Sciences (2007) - Invited lecturer at the International Congress of Mathematicians (Madrid, 2006) - Institut Universitaire de France (2006) - Harold Grad lecturer (2004) - Plenary lecturer at the International Congress of Mathematical Physics (Lisbonne, 2003) - Peccot-Vimont Prize and Cours Peccot of the Coll`ege de France (2003) - Louis Armand Prize of the Academy of Sciences (2001) - PhD Thesis (1998; advisor P.-L. -
Birational Geometry of Algebraic Varieties
Proc. Int. Cong. of Math. – 2018 Rio de Janeiro, Vol. 1 (563–588) BIRATIONAL GEOMETRY OF ALGEBRAIC VARIETIES Caucher Birkar 1 Introduction This is a report on some of the main developments in birational geometry in recent years focusing on the minimal model program, Fano varieties, singularities and related topics, in characteristic zero. This is not a comprehensive survey of all advances in birational geometry, e.g. we will not touch upon the positive characteristic case which is a very active area of research. We will work over an algebraically closed field k of characteristic zero. Varieties are all quasi-projective. Birational geometry, with the so-called minimal model program at its core, aims to classify algebraic varieties up to birational isomorphism by identifying “nice” elements in each birational class and then classifying such elements, e.g study their moduli spaces. Two varieties are birational if they contain isomorphic open subsets. In dimension one, a nice element in a birational class is simply a smooth and projective element. In higher dimension though there are infinitely many such elements in each class, so picking a rep- resentative is a very challenging problem. Before going any further lets introduce the canonical divisor. 1.1 Canonical divisor. To understand a variety X one studies subvarieties and sheaves on it. Subvarieties of codimension one and their linear combinations, that is, divisors play a crucial role. Of particular importance is the canonical divisor KX . When X is smooth this is the divisor (class) whose associated sheaf OX (KX ) is the canonical sheaf !X := det ΩX where ΩX is the sheaf of regular differential forms. -
1 Getting a Knighthood
Getting a knighthood (Bristol, June 1996) It's unreal, isn't it? I've always had a strong sense of the ridiculous, of the absurd, and this is working overtime now. Many of you must have been thinking, ‘Why Berry?’ Well, since I am the least knightly person I know, I have been asking the same question, and although I haven't come up with an answer I can offer a few thoughts. How does a scientist get this sort of national recognition? One way is to do something useful to the nation, that everyone agrees is important to the national well- being or even survival. Our home-grown example is of course Sir Charles Frank's war work. Or, one can sacrifice several years of one's life doing high-level scientific administration, not always received with gratitude by the scientific hoi polloi but important to the smooth running of the enterprise. Sir John Kingman is in this category. Another way – at least according to vulgar mythology – is to have the right family background. Well, my father drove a cab in London and my mother ruined her eyes as a dressmaker. Another way is to win the Nobel Prize or one of the other huge awards like the Wolf or King Faisal prizes, like Sir George Porter as he then was, or Sir Michael Atiyah. The principle here I suppose is, to those that have, more shall be given. I don't qualify on any of these grounds. The nearest I come is to have have won an fairly large number of smaller awards. -
Cadenza Document
2017/18 Whole Group Timetable Semester 1 Mathematics Module CMIS Room Class Event ID Code Module Title Event Type Day Start Finish Weeks Lecturer Room Name Code Capacity Size 3184417 ADM003 Yr 1 Basic Skills Test Test Thu 09:00 10:00 18-20 Tonks, A Dr Fielding Johnson South Wing FJ SW 485 185 Basement Peter Williams PW Lecture Theatre 3198490 ADM003 Yr 1 Basic Skills Test Test Thu 09:00 10:00 18-20 Leschke K Dr KE 323, 185 KE 101, ADR 227, MSB G62, KE 103 3203305 ADM003 Yr 1 Basic Skills Test Test Thu 09:00 10:00 18-20 Hall E J C Dr Attenborough Basement ATT LT1 204 185 Lecture Theatre 1 3216616 ADM005 Yr 2 Basic Skills Test Test Fri 10:00 11:00 18 Brilliantov N BEN 149 Professor F75b, MSB G62, KE 103, KE 323 2893091 MA1012 Calculus & Analysis 1 Lecture Mon 11:00 12:00 11-16, Tonks, A Dr Ken Edwards First Floor KE LT1 249 185 18-21 Lecture Theatre 1 2893092 MA1012 Calculus & Analysis 1 Lecture Tue 11:00 12:00 11-16, Tonks, A Dr Attenborough Basement ATT LT1 204 185 18-21 Lecture Theatre 1 2893129 MA1061 Probability Lecture Thu 10:00 11:00 11-16, Hall E J C Dr Ken Edwards First Floor KE LT1 249 185 18-21 Lecture Theatre 1 2893133 MA1061 Probability Lecture Fri 11:00 12:00 11-16, Hall E J C Dr Bennett Upper Ground Floor BEN LT1 244 185 18-21 Lecture Theatre 1 2902659 MA1104 ELEMENTS OF NUMBER Lecture Tue 13:00 14:00 11-16, Goedecke J Ken Edwards Ground Floor KE LT3 150 100 THEORY 18-21 Lecture Theatre 3 2902658 MA1104 ELEMENTS OF NUMBER Lecture Wed 10:00 11:00 11-16, Goedecke J Astley Clarke Ground Floor AC LT 110 100 THEORY 18-21 Lecture -
Orbital Resonances and GPU Acceleration of Binary Black Hole Inspiral Simulations
Orbital resonances and GPU acceleration of binary black hole inspiral simulations by Adam Gabriel Marcel Lewis A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Department of Physics University of Toronto c Copyright 2018 by Adam Gabriel Marcel Lewis Abstract Orbital resonances and GPU acceleration of binary black hole inspiral simulations Adam Gabriel Marcel Lewis Doctor of Philosophy Department of Physics University of Toronto 2018 Numerical relativity, the direct numerical integration of the Einstein field equations, is now a mature subfield of computational physics, playing a critical role in the generation of signal templates for comparison with data from ground-based gravitational wave de- tectors. The application of numerical relativity techniques to new problems is at present complicated by long wallclock times and intricate code. In this thesis we lay groundwork to improve this situation by presenting a GPU port of the numerical relativity code SpEC. Our port keeps code maintenance feasible by relying on various layers of automation, and achieves high performance across a variety of GPUs. We secondly introduce a C++ soft- ware package, TLoops, which allows numerical manipulation of tensors using single-line C++ source-code expressions resembling familiar tensor calculus notation. These expres- sions may be compiled and executed immediately, but also can be used to automatically generate equivalent GPU or low-level CPU code, which then executes in their place. The GPU code in particular achieves near-peak performance. Finally, we present simulations of eccentric binary black holes. We develop new methods to extract the fundamental fre- quencies of these systems. -
Comments on the 2011 Shaw Prize in Mathematical Sciences - - an Analysis of Collectively Formed Errors in Physics by C
Global Journal of Science Frontier Research Physics and Space Science Volume 12 Issue 4 Version 1.0 June 2012 Type : Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 2249-4626 & Print ISSN: 0975-5896 Comments on the 2011 Shaw Prize in Mathematical Sciences - - An Analysis of Collectively Formed Errors in Physics By C. Y. Lo Applied and Pure Research Institute, Nashua, NH Abstract - The 2011 Shaw Prize in mathematical sciences is shared by Richard S. Hamilton and D. Christodoulou. However, the work of Christodoulou on general relativity is based on obscure errors that implicitly assumed essentially what is to be proved, and thus gives misleading results. The problem of Einstein’s equation was discovered by Gullstrand of the 1921 Nobel Committee. In 1955, Gullstrand is proven correct. The fundamental errors of Christodoulou were due to his failure to distinguish the difference between mathematics and physics. His subsequent errors in mathematics and physics were accepted since judgments were based not on scientific evidence as Galileo advocates, but on earlier incorrect speculations. Nevertheless, the Committee for the Nobel Prize in Physics was also misled as shown in their 1993 press release. Here, his errors are identified as related to accumulated mistakes in the field, and are illustrated with examples understandable at the undergraduate level. Another main problem is that many theorists failed to understand the principle of causality adequately. It is unprecedented to award a prize for mathematical errors. Keywords : Nobel Prize; general relativity; Einstein equation, Riemannian Space; the non- existence of dynamic solution; Galileo. GJSFR-A Classification : 04.20.-q, 04.20.Cv Comments on the 2011 Shaw Prize in Mathematical Sciences -- An Analysis of Collectively Formed Errors in Physics Strictly as per the compliance and regulations of : © 2012. -
New Publications Offered by The
New Publications Offered by the AMS To subscribe to email notification of new AMS publications, please go to www.ams.org/bookstore-email. Algebra and Algebraic Geometry theorem in noncommutative geometry; M. Guillemard, An overview of groupoid crossed products in dynamical systems. Contemporary Mathematics, Volume 676 Noncommutative November 2016, 222 pages, Softcover, ISBN: 978-1-4704-2297-4, LC 2016017993, 2010 Mathematics Subject Classification: 00B25, 46L87, Geometry and Optimal 58B34, 53C17, 46L60, AMS members US$86.40, List US$108, Order Transport code CONM/676 Pierre Martinetti, Università di Genova, Italy, and Jean-Christophe Wallet, CNRS, Université Paris-Sud 11, Orsay, France, Editors Differential Equations This volume contains the proceedings of the Workshop on Noncommutative Geometry and Optimal Transport, held on November 27, 2014, in Shock Formation in Besançon, France. The distance formula in noncommutative geometry was introduced Small-Data Solutions to by Connes at the end of the 1980s. It is a generalization of Riemannian 3D Quasilinear Wave geodesic distance that makes sense in a noncommutative setting, and provides an original tool to study the geometry of the space of Equations states on an algebra. It also has an intriguing echo in physics, for it yields a metric interpretation for the Higgs field. In the 1990s, Jared Speck, Massachusetts Rieffel noticed that this distance is a noncommutative version of the Institute of Technology, Cambridge, Wasserstein distance of order 1 in the theory of optimal transport. MA More exactly, this is a noncommutative generalization of Kantorovich dual formula of the Wasserstein distance. Connes distance thus offers In 1848 James Challis showed that an unexpected connection between an ancient mathematical problem smooth solutions to the compressible and the most recent discovery in high energy physics. -
After Ramanujan Left Us– a Stock-Taking Exercise S
Ref: after-ramanujanls.tex Ver. Ref.: : 20200426a After Ramanujan left us– a stock-taking exercise S. Parthasarathy [email protected] 1 Remembering a giant This article is a sequel to my article on Ramanujan [14]. April 2020 will mark the death centenary of the legendary Indian mathe- matician – Srinivasa Ramanujan (22 December 1887 – 26 April 1920). There will be celebrations of course, but one way to honour Ramanujan would be to do some introspection and stock-taking. This is a short survey of notable achievements and contributions to mathematics by Indian institutions and by Indian mathematicians (born in India) and in the last hundred years since Ramanujan left us. It would be highly unfair to compare the achievements of an individual, Ramanujan, during his short life span (32 years), with the achievements of an entire nation over a century. We should also consider the context in which Ramanujan lived, and the most unfavourable and discouraging situation in which he grew up. We will still attempt a stock-taking, to record how far we have moved after Ramanujan left us. Note : The table below should not be used to compare the relative impor- tance or significance of the contributions listed there. It is impossible to list out the entire galaxy of mathematicians for a whole century. The table below may seem incomplete and may contain some inad- vertant errors. If you notice any major lacunae or omissions, or if you have any suggestions, please let me know at [email protected]. 1 April 1920 – April 2020 Year Name/instit. Topic Recognition 1 1949 Dattatreya Kaprekar constant, Ramchandra Kaprekar number Kaprekar [1] [2] 2 1968 P.C. -
Dynamics, Equations and Applications Book of Abstracts Session
DYNAMICS, EQUATIONS AND APPLICATIONS BOOK OF ABSTRACTS SESSION D21 AGH University of Science and Technology Kraków, Poland 1620 September 2019 2 Dynamics, Equations and Applications CONTENTS Plenary lectures 7 Artur Avila, GENERIC CONSERVATIVE DYNAMICS . .7 Alessio Figalli, ON THE REGULARITY OF STABLE SOLUTIONS TO SEMI- LINEAR ELLIPTIC PDES . .7 Martin Hairer, RANDOM LOOPS . .8 Stanislav Smirnov, 2D PERCOLATION REVISITED . .8 Shing-Tung Yau, STABILITY AND NONLINEAR PDES IN MIRROR SYMMETRY8 Maciej Zworski, FROM CLASSICAL TO QUANTUM AND BACK . .9 Public lecture 11 Alessio Figalli, FROM OPTIMAL TRANSPORT TO SOAP BUBBLES AND CLOUDS: A PERSONAL JOURNEY . 11 Invited talks of part D2 13 Stefano Bianchini, DIFFERENTIABILITY OF THE FLOW FOR BV VECTOR FIELDS . 13 Yoshikazu Giga, ON THE LARGE TIME BEHAVIOR OF SOLUTIONS TO BIRTH AND SPREAD TYPE EQUATIONS . 14 David Jerison, THE TWO HYPERPLANE CONJECTURE . 14 3 4 Dynamics, Equations and Applications Sergiu Klainerman, ON THE NONLINEAR STABILITY OF BLACK HOLES . 15 Aleksandr Logunov, ZERO SETS OF LAPLACE EIGENFUCNTIONS . 16 Felix Otto, EFFECTIVE BEHAVIOR OF RANDOM MEDIA . 17 Endre Süli, IMPLICITLY CONSTITUTED FLUID FLOW MODELS: ANALYSIS AND APPROXIMATION . 17 András Vasy, GLOBAL ANALYSIS VIA MICROLOCAL TOOLS: FREDHOLM THEORY IN NON-ELLIPTIC SETTINGS . 19 Luis Vega, THE VORTEX FILAMENT EQUATION, THE TALBOT EFFECT, AND NON-CIRCULAR JETS . 20 Enrique Zuazua, POPULATION DYNAMICS AND CONTROL . 20 Talks of session D21 23 Giovanni Bellettini, ON THE RELAXED AREA OF THE GRAPH OF NONS- MOOTH MAPS FROM THE PLANE TO THE PLANE . 23 Sun-Sig Byun, GLOBAL GRADIENT ESTIMATES FOR NONLINEAR ELLIP- TIC PROBLEMS WITH NONSTANDARD GROWTH . 24 Juan Calvo, A BRIEF PERSPECTIVE ON TEMPERED DIFFUSION EQUATIONS 25 Giacomo Canevari, THE SET OF TOPOLOGICAL SINGULARITIES OF VECTOR- VALUED MAPS . -
Institute for Pure and Applied Mathematics, UCLA Award/Institution #0439872-013151000 Annual Progress Report for 2009-2010 August 1, 2011
Institute for Pure and Applied Mathematics, UCLA Award/Institution #0439872-013151000 Annual Progress Report for 2009-2010 August 1, 2011 TABLE OF CONTENTS EXECUTIVE SUMMARY 2 A. PARTICIPANT LIST 3 B. FINANCIAL SUPPORT LIST 4 C. INCOME AND EXPENDITURE REPORT 4 D. POSTDOCTORAL PLACEMENT LIST 5 E. INSTITUTE DIRECTORS‘ MEETING REPORT 6 F. PARTICIPANT SUMMARY 12 G. POSTDOCTORAL PROGRAM SUMMARY 13 H. GRADUATE STUDENT PROGRAM SUMMARY 14 I. UNDERGRADUATE STUDENT PROGRAM SUMMARY 15 J. PROGRAM DESCRIPTION 15 K. PROGRAM CONSULTANT LIST 38 L. PUBLICATIONS LIST 50 M. INDUSTRIAL AND GOVERNMENTAL INVOLVEMENT 51 N. EXTERNAL SUPPORT 52 O. COMMITTEE MEMBERSHIP 53 P. CONTINUING IMPACT OF PAST IPAM PROGRAMS 54 APPENDIX 1: PUBLICATIONS (SELF-REPORTED) 2009-2010 58 Institute for Pure and Applied Mathematics, UCLA Award/Institution #0439872-013151000 Annual Progress Report for 2009-2010 August 1, 2011 EXECUTIVE SUMMARY Highlights of IPAM‘s accomplishments and activities of the fiscal year 2009-2010 include: IPAM held two long programs during 2009-2010: o Combinatorics (fall 2009) o Climate Modeling (spring 2010) IPAM‘s 2010 winter workshops continued the tradition of focusing on emerging topics where Mathematics plays an important role: o New Directions in Financial Mathematics o Metamaterials: Applications, Analysis and Modeling o Mathematical Problems, Models and Methods in Biomedical Imaging o Statistical and Learning-Theoretic Challenges in Data Privacy IPAM sponsored reunion conferences for four long programs: Optimal Transport, Random Shapes, Search Engines and Internet MRA IPAM sponsored three public lectures since August. Noga Alon presented ―The Combinatorics of Voting Paradoxes‖ on October 5, 2009. Pierre-Louis Lions presented ―On Mean Field Games‖ on January 5, 2010.