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Tōhoku Rick Jardine
INFERENCE / Vol. 1, No. 3 Tōhoku Rick Jardine he publication of Alexander Grothendieck’s learning led to great advances: the axiomatic description paper, “Sur quelques points d’algèbre homo- of homology theory, the theory of adjoint functors, and, of logique” (Some Aspects of Homological Algebra), course, the concepts introduced in Tōhoku.5 Tin the 1957 number of the Tōhoku Mathematical Journal, This great paper has elicited much by way of commen- was a turning point in homological algebra, algebraic tary, but Grothendieck’s motivations in writing it remain topology and algebraic geometry.1 The paper introduced obscure. In a letter to Serre, he wrote that he was making a ideas that are now fundamental; its language has with- systematic review of his thoughts on homological algebra.6 stood the test of time. It is still widely read today for the He did not say why, but the context suggests that he was clarity of its ideas and proofs. Mathematicians refer to it thinking about sheaf cohomology. He may have been think- simply as the Tōhoku paper. ing as he did, because he could. This is how many research One word is almost always enough—Tōhoku. projects in mathematics begin. The radical change in Gro- Grothendieck’s doctoral thesis was, by way of contrast, thendieck’s interests was best explained by Colin McLarty, on functional analysis.2 The thesis contained important who suggested that in 1953 or so, Serre inveigled Gro- results on the tensor products of topological vector spaces, thendieck into working on the Weil conjectures.7 The Weil and introduced mathematicians to the theory of nuclear conjectures were certainly well known within the Paris spaces. -
Geometric Group Theory, Hyperbolic Dynamics and Symplectic Geometry
Mathematisches Forschungsinstitut Oberwolfach Report No. 30/2010 DOI: 10.4171/OWR/2010/30 Geometric Group Theory, Hyperbolic Dynamics and Symplectic Geometry Organised by Gerhard Knieper, Bochum Leonid Polterovich, Tel Aviv Leonid Potyagailo, Lille July 11th – July 17th, 2010 Abstract. The main theme of the workshop is the interaction between the speedily developing fields of mathematics mentioned in the title. One of the purposes of the workshop is to highlight new exciting developments which are happening right now on the borderline between hyperbolic dynamics, geometric group theory and symplectic geometry. Mathematics Subject Classification (2000): 20Fxx, 22E40, 22E46, 22F10, 37D05, 37D40, 37K65, 53C22, 53Dxx. Introduction by the Organisers Most of the talks of the workshop largely included different aspects related to the main themes of the conference. There were talks given by the well-known specialists as well as by young participants (recent PhD or postdoctoral students). The scientific atmosphere was very fruitful. Many interesting scientific discussions between participants certainly generated new ideas for the further research. The following report contains extended abstracts of the presented talks. By continuing our tradition we included an updated list of open important problems related to the workshop. Geometric Group Theory, Hyperbolic Dynamics and Symplectic Geometry 1763 Workshop: Geometric Group Theory, Hyperbolic Dynamics and Symplectic Geometry Table of Contents Norbert Peyerimhoff (joint with Ioannis Ivrissimtzis) Spectral Representations, Archimedean Solids, and finite Coxeter Groups 1765 Fr´ed´eric Bourgeois A brief survey of contact homology ................................1768 Brian H. Bowditch Models of 3-manifolds and hyperbolicity ............................1769 Octav Cornea (joint with Paul Biran) Lagrangian submanifolds: their fundamental group and Lagrangian cobordism .................................................. -
Professor AO Kuku
CURRICULUM VITAE Professor A.O. Kuku I. Personal Details Date of Birth: March 20, 1941 Marital Status: Married with four children Nationality: Nigerian Sex: Male U.S.A. Permanent Resident (Green card) since March 2002 II CURRENT POSITION: Professor of Mathematics, Grambling State University, Grambling, LA, USA. Since August 2008 III. Position held in the last five years (a) Member, Institute for Advanced Study Princeton, NJ, USA. Sept. 2003-Aug. 2004 (b) Visiting Research Professor, MSRI Berkeley, CA, USA. Aug-Dec 2004 (c) Visiting Professor, OSU (Ohio State Univ.) Columbus, OH, USA 2005 (d) Distinguished Visiting Professor, Miami 2005 – 2006 University, Oxford, OH, USA (e) Visiting Professor, Universitat Bielefeld, Germany ,USA. 2006 (f) Visiting Professor, IHES, Paris, France 2006 (g) Visiting Professor, Max Planck Inst. Fur Mathematik, Bonn, Germany 2007 (h) Visiting Professor, National Mathema- tical Centre, Abuja, Nigeria. 2007 (i) Visiting professor, The University of Iowa, Iowa-City, USA 2007-2008 (j) Visiting Professor, National Mathema- Tical Centre, Abuja, Nigeria. 2008 IV. Educational Institutions Attended (University Education) 1.Makerere University College, Kampala, Uganda (then under special relationship with the University of London) 1962-1965 2.University of Ibadan, Nigeria 1966-1971 1 3Columbia University, New York City, USA (To write my Ph.D thesis) (Thesis written under Professor Hyman Bass) 1970-1971 V. Academic Qualification (with dates and granting bodies) 1.B. Sc (Special- Honours) Mathematics, University of London 1965 2.M. Sc. (Mathematics), University of Ibadan, Nigeria. 1968 3.Ph. D. (Mathematics), University of Ibadan, Nigeria 1971 (Thesis written under Professor Hyman Bass of Columbia Univerisity, New York). -
Curriculum Vitae
CURRICULUM VITAE Professor Aderemi Oluyomi Kuku Ph.D, FAMS (USA), FTWAS, FAAS, FAS (Nig), FNMS, FMAN, FASI, OON, NNOM I. Personal Details Date of Birth: March 20, 1941 Marital Status: Married with four children Nationality: USA/Nigeria. Sex: Male II CONTACT ADDRESSES: Email [email protected] Website: www.aderemikuku.com MAILING ADDRESS: USA: 307 Penny Lane, Apt 5, Ruston, LA 71270, USA. NIGERIA(a) 2 Amure Street, Kongi-NewBodija, Ibadan, Oyo State, Nigeria. (b) Univerdityof Ibadan Post office Box 22574 Ibadan, Oyo State , Nigeria. PHONE NUMBERS: USA: +1-318-255-6433 Cell: +1-224-595-4854 NIGERIA: +234-70-56871969; +234-80-62329855 III. Positions held in the last 14 years (a) Member, Institute for Advanced Study Princeton, NJ, USA. Sept. 2003-Aug. 2004 (b) Visiting Research Professor, MSRI-- (Math. Sci. Research Inst) Berkeley, CA, USA. Aug-Dec, 2004 (c) Visiting Professor, OSU (Ohio State Univ.) Columbus, OH, USA 2005 (d) Distinguished Visiting Professor, Miami 2005 – 2006 University, Oxford, OH, USA (e) Visiting Professor, Universitat Bielefeld, Germany 2006 (f) Visiting Professor, IHES, Paris, France 2006 (g) Visiting Professor, Max Planck Inst. Fur Mathematik, Bonn, Germany 2007 1 (h) Distinguished Visiting Professor, National Mathematical Centre, Abuja, Nigeria. 2007 (i) Visiting Professor, The University of Iowa, Iowa-City, USA 2007-2008 (j) Professor of Mathematics, Grambling State University, Grambling, LA 71245, USA 2008-2009 (k) William W. S. Claytor Endowed Professor of Mathematics Grambling State University, Grambling, LA 71245, USA. 2009-2014 (l) Distinguished Visiting Professor, National Mathematical Centre, Abuja, Nigeria. Summer 2009, 2010,2011, 2012, 2013, 2014 (m) Distinguished Visiting Professor of Mathematics, IMSP—Institut demathematiques etde Sciences Physiques, Porto Novo, BeninRepublic,Nov/Dec,2015. -
Torification and Factorization of Birational Maps 3
TORIFICATION AND FACTORIZATION OF BIRATIONAL MAPS DAN ABRAMOVICH, KALLE KARU, KENJI MATSUKI, AND JAROSLAW WLODARCZYK Abstract. Building on work of the fourth author in [69], we prove the weak factorization conjecture for birational maps in characteristic zero: a birational map between complete nonsingular varieties over an algebraically closed field K of characteristic zero is a composite of blowings up and blowings down with smooth centers. Contents 0. Introduction 1 1. Preliminaries 5 2. Birational Cobordisms 10 3. Torification 16 4. A proof of the weak factorization theorem 22 5. Generalizations 24 6. Problems related to weak factorization 27 References 28 0. Introduction We work over an algebraically closed field K of characteristic 0. We denote the multiplicative group of K by K∗. 0.1. Statement of the main result. The purpose of this paper is to give a proof for the following weak factorization conjecture of birational maps. We note that another proof of this theorem was given by the fourth author in [70]. See section 0.12 for a brief comparison of the two approaches. Theorem 0.1.1 (Weak Factorization). Let φ : X1 99K X2 be a birational map between complete nonsingular algebraic varieties X1 and X2 over an algebraically closed field K of characteristic zero, and let U ⊂ X1 be an open set where φ is an isomorphism. Then φ can be factored into a sequence of blowings up and blowings arXiv:math/9904135v4 [math.AG] 31 May 2000 down with smooth irreducible centers disjoint from U, namely, there exists a sequence of birational maps between complete nonsingular algebraic varieties ϕ1 ϕ2 ϕi ϕi+1 ϕi+2 ϕl−1 ϕl X1 = V0 99K V1 99K · · · 99K Vi 99K Vi+1 99K · · · 99K Vl−1 99K Vl = X2 where 1. -
Rapport Annuel 2014-2015
RAPPORT ANNUEL 2014-2015 Présentation du rapport annuel 1 Programme thématique 2 Autres activités 12 Grandes Conférences et colloques 16 Les laboratoires du CRM 20 Les prix du CRM 30 Le CRM et la formation 34 Les partenariats du CRM 38 Les publications du CRM 40 Comités à la tête du CRM 41 Le CRM en chiffres 42 Luc Vinet Présentation En 2014-2015, contrairement à ce qui était le cas dans (en physique mathématique) à Charles Gale de l’Université les années récentes, le programme thématique du CRM a McGill et le prix CRM-SSC (en statistique) à Matías été consacré à un seul thème (très vaste !) : la théorie des Salibián-Barrera de l’Université de Colombie-Britannique. nombres. L’année thématique, intitulée « La théorie des Les Grandes conférences du CRM permirent au grand public nombres : de la statistique Arithmétique aux éléments Zêta », de s’initier à des sujets variés, présentés par des mathémati- a été organisée par les membres du CICMA, un laboratoire ciens chevronnés : Euler et les jets d’eau de Sans-Souci du CRM à la fine pointe de la recherche mondiale, auxquels il (par Yann Brenier), la mesure des émotions en temps réel faut ajouter Louigi Addario-Berry (du Groupe de probabilités (par Chris Danforth), le mécanisme d’Anticythère (par de Montréal). Je tiens à remercier les quatre organisateurs de James Evans) et l’optique et les solitons (par John Dudley). cette brillante année thématique : Henri Darmon de l’Univer- L’année 2014-2015 fut également importante du point de sité McGill, Chantal David de l’Université Concordia, Andrew vue de l’organisation et du financement du CRM. -
Department of Mathematics
Department of Mathematics The Department of Mathematics seeks to maintain its top ranking in mathematics research and education in the United States. The department is a key part of MIT’s educational mission at both the undergraduate and graduate levels and produces the most sought-after young researchers. Key to the department’s success is recruitment of the best faculty members, postdoctoral associates, and graduate students in an ever more competitive environment. The department strives to be diverse at all levels in terms of race, gender, and ethnicity. It continues to serve the varied needs of its graduate students, undergraduate students majoring in mathematics, and the broader MIT community. Awards and Honors The faculty received numerous distinctions this year. Professor Victor Kac received the Leroy P. Steele Prize for Lifetime Achievement, for “groundbreaking contributions to Lie Theory and its applications to Mathematics and Mathematical Physics.” Larry Guth (together with Netz Katz of the California Institute of Technology) won the Clay Mathematics Institute Research Award. Tomasz Mrowka was elected as a member of the National Academy of Sciences and William Minicozzi was elected as a fellow of the American Academy of Arts and Sciences. Alexei Borodin received the 2015 Loève Prize in Probability, given by the University of California, Berkeley, in recognition of outstanding research in mathematical probability by a young researcher. Alan Edelman received the 2015 Babbage Award, given at the IEEE International Parallel and Distributed Processing Symposium, for exceptional contributions to the field of parallel processing. Bonnie Berger was elected vice president of the International Society for Computational Biology. -
Department of Mathematics, Report to the President 2015-2016
Department of Mathematics The Department of Mathematics continues to be the top-ranked mathematics department in the United States. The department is a key part of MIT’s educational mission at both the undergraduate and graduate levels and produces top sought- after young researchers. Key to the department’s success is recruitment of the very best faculty, postdoctoral fellows, and graduate students in an ever-more competitive environment. The department aims to be diverse at all levels in terms of race, gender, and ethnicity. It continues to serve the varied needs of the department’s graduate students, mathematics majors, and the broader MIT community. Awards and Honors The faculty received numerous distinctions this year. Professor Emeritus Michael Artin was awarded the National Medal of Science. In 2016, President Barack Obama presented this honor to Artin for his outstanding contributions to mathematics. Two other emeritus professors also received distinctions: Professor Bertram Kostant was selected to receive the 2016 Wigner Medal, in recognition of “outstanding contributions to the understanding of physics through Group Theory.” Professor Alar Toomre was elected member of the American Philosophical Society. Among active faculty, Professor Larry Guth was awarded the New Horizons in Mathematics Prize for “ingenious and surprising solutions to long standing open problems in symplectic geometry, Riemannian geometry, harmonic analysis, and combinatorial geometry.” He also received a 2015 Teaching Prize for Graduate Education from the School of Science. Professor Alexei Borodin received the 2015 Henri Poincaré Prize, awarded every three years at the International Mathematical Physics Congress to recognize outstanding contributions in mathematical physics. He also received a 2016 Simons Fellowship in Mathematics. -
Lecture Notes in Mathematics
Lecture Notes in Mathematics Edited by A. Dold and 13. Eckmann 551 Algebraic K-Theory Proceedings of the Conference Held at Northwestern University Evanston, January 12-16, 1976 Edited by Michael R. Stein Springer-Verlag Berlin. Heidelberg- New York 19 ? 6 Editor Michael R. Stein Department of Mathematics Northwestern University Evanston, I1. 60201/USA Library of Congress Cataloging in Publication Data Main entry under title: Algebraic K-theory. (Lecture notes in mathematics ; 551) Bibliography: p. Includes index. i. K-theory--Congresses. 2 ~ Homology theory-- Congresses. 3. Rings (Algebra)--Congresses. I. Stein, M~chael R., 1943- II. Series: Lecture notes in mathematics (Berlin) ; 551. QAB,I,q8 no. 551 [QA61~.33] 510'.8s [514'.23] 76-~9894 ISBN AMS Subject Classifications (1970): 13D15, 14C99,14 F15,16A54,18 F25, 18H10, 20C10, 20G05, 20G35, 55 El0, 57A70 ISBN 3-540-07996-3 Springer-Verlag Berlin 9Heidelberg 9New York ISBN 0-38?-0?996-3 Springer-Verlag New York 9Heidelberg 9Berlin This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically those of translation, re- printing, re-use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. Under w 54 of the German Copyright Law where copies are made for other than private use, a fee is payable to the publisher, the amount of the fee to be determined by agreement with the publisher. 9 by Springer-Verlag Berlin 9Heidelberg 1976 Printed in Germany Printing and binding: Beltz Offsetdruck, Hemsbach/Bergstr. Introduction A conference on algebraic K-theory, jointly supported by the National Science Foundation and Northwestern University, was held at Northwestern University January 12-16, 1976. -
New York Journal of Mathematics Lang's Conjectures, Fibered
New York Journal of Mathematics New York J. Math. 2 (1996) 20–34. Lang’s Conjectures, Fibered Powers, and Uniformity Dan Abramovich and Jos´e Felipe Voloch Abstract. We prove that the fibered power conjecture of Caporaso et al. (Con- jecture H, [CHM], §6) together with Lang’s conjecture implies the uniformity of rational points on varieties of general type, as predicted in [CHM]; a few applications on the arithmetic and geometry of curves are stated. In an opposite direction, we give counterexamples to some analogous results in positive characteristic. We show that curves that change genus can have arbitrarily many rational points; and that curves over Fp(t) can have arbitrarily many Frobenius orbits of non-constant points. Contents 1. Introduction 21 1.1. A Few Conjectures of Lang 21 1.2. The Fibered Power Conjecture 22 1.3. Summary of Results on the Implication Side 22 1.4. Summary of Results: Examples in Positive Characteristic 24 1.5. Acknowledgments 25 2. Proof of Theorem 1.5 25 2.1. Preliminaries 25 2.2. Prolongable Points 25 2.3. Proof of Theorem 1.5 26 3. A Few Refinements and Applications in Arithmetic and Geometry 26 3.1. Proof of Theorem 1.6 26 3.2. Uniformity in Terms of the Degree of an Extension 27 3.3. The Geometric Case 28 4. Examples in Positive Characteristic 30 4.1. Curves that Change Genus 30 Received December 20, 1995. Mathematics Subject Classification. 14G; 11G. Key words and phrases. arithmetic geometry, Lang’s conjecture, rational points. Abramovich partially supported by NSF grant DMS-9503276. -
American Mathematical Society COUNCIL MINUTES
American Mathematical Society COUNCIL MINUTES New Orleans, Louisiana 05 January 2011 at 1:30 p.m. Prepared January 20, 2011 Abstract The Council of the Society met at 1:30 p.m. on Wednesday, 05 January 2011, in the Mardi Gras E room of the New Orleans Marriott Hotel, 555 Canal Street, New Orleans, LA 70130. These are the minutes of the meeting. Although several items were treated in Executive Session, all actions taken are reported in these minutes. Council Agenda 05 January 2011 Page 2 of 16 Contents I. AGENDA 1. Call to Order 1.1. Opening of the Meeting and Introductions . 4 1.2. 2010 Council Elections........................................4 1.3. Retiring Members. ...........................................4 1.4. Council Members.............................................4 2. Minutes. .........................................................5 2.1. Minutes of the April 2010 Council. 5 2.2. The 05/2010 and 11/2010 Executive Committee and Board of Trustees (ECBT) Meetings.............................................5 3. Consent Agenda....................................................5 3.1. Mathfest Joint Program Committee.. 5 4. Reports of Boards and Standing Committees . 5 4.1. Tellers’ Report on the 2010 Elections [Executive Session]. 5 4.1.1. Tellers’ Report on the Elections of Officers. 5 4.1.2. Tellers’ Report on Elections to the Nominating Committee. 6 4.1.3. Tellers’ Report on Elections to the Editorial Boards Committee. 6 4.2. Executive Committee/Board of Trustees (ECBT). 6 4.2.1. Associate Secretary for the Central Section [Executive Session]. 6 4.2.2. Associate Secretary for the Western Section [Executive Session]. 6 4.2.3. Associate Treasurer [Executive Session] . 7 4.2.4. Dues Levels for the 2012 Membership Year. -
Final Program and Abstracts
Final Program and Abstracts Sponsored by the SIAM Activity Group on Analysis of Partial Differential Equations The Activity Group on Analysis of Partial Differential Equations fosters activity in the analysis of partial differential equations (PDE) and enhances communication between analysts, computational scientists and the broad PDE community. Its goals are to provide a forum where theoretical and applied researchers in the area can meet, to be an intellectual home for researchers in the analysis of PDE, to increase conference activity in PDE, and to enhance connections between SIAM and the mathematics community. SIAM 2015 Events Mobile App Scan the QR code with any QR reader and download the TripBuilder EventMobile™ app to your iPhone, iPad, iTouch or Android mobile device. You can also visit www.tripbuilder.net/mobileweb/apps/siam2015events Society for Industrial and Applied Mathematics 3600 Market Street, 6th Floor Philadelphia, PA 19104-2688 USA Telephone: +1-215-382-9800 Fax: +1-215-386-7999 Conference E-mail: [email protected] Conference Web: www.siam.org/meetings/ Membership and Customer Service: (800) 447-7426 (US& Canada) or +1-215-382-9800 (worldwide) www.siam.org/meetings/pd15 2 SIAM Conference on Analysis of Partial Differential Equations Table of Contents SIAM Registration Desk Corporate Members The SIAM registration desk is located in the and Affiliates Program-at-a-Glance ............................... Grand Ballroom Foyer - Main Level. It is SIAM corporate members provide their .......................See separate handout open during the following hours: employees with knowledge about, access General Information ........................2 Sunday, December 6 to, and contacts in the applied mathematics 4:00 PM – 8:00 PM and computational sciences community Get-togethers .........................................4 through their membership benefits.