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Ravi's Speech at the Banquet
Speech at the Conference on Conformal Geometry and Riemann Surfaces October 27, 2013 Ravi S. Kulkarni October 29, 2013 1 Greetings I am very happy today. I did not know that so many people loved me enough to gather at Queens College to wish me a healthy, long, and productive life over and above the 71 years I have already lived. It includes my teacher Shlomo Sternberg, present here on skype, and my \almost"-teachers Hyman Bass, and Cliff Earle. Alex Lubotzky came from Israel, Ulrich Pinkall from Germany, and Shiga from Japan. If I have counted correctly there are 14 people among the speakers who are above 65, and 5 below 65, of which only 3 in their 30s to 50s. There are many more in the audience who are in their 50s and below. I interpret this as: we old people have done something right. And of course that something right, is that we have done mathematics. The conference of this type is new for the Math department at Queens College, although it had many distinguished mathematicians like Arthur Sard, Leo Zippin, Banesh Hoffman, Edwin Moise, ... before, on its faculty. I find this Conference especially gratifying since I already went back to In- dia in 2001, enjoyed several leaves without pay, and finally retired from Queens College, in Feb 2008. However I keep coming back to Queens college and Grad- uate Center twice a year and enjoy my emeritus positions with all the office and library/computer advantages. For a long time, I felt that people here thought that I was an Indian in America. -
Higher Algebraic K-Theory I
1 Higher algebraic ~theory: I , * ,; Daniel Quillen , ;,'. ··The·purpose of..thispaper.. is.to..... develop.a.higher. X..,theory. fpJ;' EiddUiy!!. categQtl~ ... __ with euct sequences which extends the ell:isting theory of ths Grothsndieck group in a natural wll7. To describe' the approach taken here, let 10\ be an additive category = embedded as a full SUbcategory of an abelian category A, and assume M is closed under , = = extensions in A. Then one can form a new category Q(M) having the same objects as ')0\ , = =, = but :in which a morphism from 101 ' to 10\ is taken to be an isomorphism of MI with a subquotient M,IM of M, where MoC 101, are aubobjects of M such that 101 and MlM, o 0 are objects of ~. Assuming 'the isomorphism classes of objects of ~ form a set, the, cstegory Q(M)= has a classifying space llQ(M)= determined up to homotopy equivalence. One can show that the fundamental group of this classifying spacs is canonically isomor- phic to the Grothendieck group of ~ which motivates dsfining a ssquenoe of X-groups by the formula It is ths goal of the present paper to show that this definition leads to an interesting theory. The first part pf the paper is concerned with the general theory of these X-groups. Section 1 contains various tools for working .~th the classifying specs of a small category. It concludes ~~th an important result which identifies ·the homotopy-theoretic fibre of the map of classifying spaces induced by a.functor. In X-theory this is used to obtain long exsct sequences of X-groups from the exact homotopy sequence of a map. -
Math Spans All Dimensions
March 2000 THE NEWSLETTER OF THE MATHEMATICAL ASSOCIATION OF AMERICA Math Spans All Dimensions April 2000 is Math Awareness Month Interactive version of the complete poster is available at: http://mam2000.mathforum.com/ FOCUS March 2000 FOCUS is published by the Mathematical Association of America in January. February. March. April. May/June. August/September. FOCUS October. November. and December. a Editor: Fernando Gouvea. Colby College; March 2000 [email protected] Managing Editor: Carol Baxter. MAA Volume 20. Number 3 [email protected] Senior Writer: Harry Waldman. MAA In This Issue [email protected] Please address advertising inquiries to: 3 "Math Spans All Dimensions" During April Math Awareness Carol Baxter. MAA; [email protected] Month President: Thomas Banchoff. Brown University 3 Felix Browder Named Recipient of National Medal of Science First Vice-President: Barbara Osofsky. By Don Albers Second Vice-President: Frank Morgan. Secretary: Martha Siegel. Treasurer: Gerald 4 Updating the NCTM Standards J. Porter By Kenneth A. Ross Executive Director: Tina Straley 5 A Different Pencil Associate Executive Director and Direc Moving Our Focus from Teachers to Students tor of Publications and Electronic Services: Donald J. Albers By Ed Dubinsky FOCUS Editorial Board: Gerald 6 Mathematics Across the Curriculum at Dartmouth Alexanderson; Donna Beers; J. Kevin By Dorothy I. Wallace Colligan; Ed Dubinsky; Bill Hawkins; Dan Kalman; Maeve McCarthy; Peter Renz; Annie 7 ARUME is the First SIGMAA Selden; Jon Scott; Ravi Vakil. Letters to the editor should be addressed to 8 Read This! Fernando Gouvea. Colby College. Dept. of Mathematics. Waterville. ME 04901. 8 Raoul Bott and Jean-Pierre Serre Share the Wolf Prize Subscription and membership questions 10 Call For Papers should be directed to the MAA Customer Thirteenth Annual MAA Undergraduate Student Paper Sessions Service Center. -
Bibliography
Bibliography [AK98] V. I. Arnold and B. A. Khesin, Topological methods in hydrodynamics, Springer- Verlag, New York, 1998. [AL65] Holt Ashley and Marten Landahl, Aerodynamics of wings and bodies, Addison- Wesley, Reading, MA, 1965, Section 2-7. [Alt55] M. Altman, A generalization of Newton's method, Bulletin de l'academie Polonaise des sciences III (1955), no. 4, 189{193, Cl.III. [Arm83] M.A. Armstrong, Basic topology, Springer-Verlag, New York, 1983. [Bat10] H. Bateman, The transformation of the electrodynamical equations, Proc. Lond. Math. Soc., II, vol. 8, 1910, pp. 223{264. [BB69] N. Balabanian and T.A. Bickart, Electrical network theory, John Wiley, New York, 1969. [BLG70] N. N. Balasubramanian, J. W. Lynn, and D. P. Sen Gupta, Differential forms on electromagnetic networks, Butterworths, London, 1970. [Bos81] A. Bossavit, On the numerical analysis of eddy-current problems, Computer Methods in Applied Mechanics and Engineering 27 (1981), 303{318. [Bos82] A. Bossavit, On finite elements for the electricity equation, The Mathematics of Fi- nite Elements and Applications IV (MAFELAP 81) (J.R. Whiteman, ed.), Academic Press, 1982, pp. 85{91. [Bos98] , Computational electromagnetism: Variational formulations, complementar- ity, edge elements, Academic Press, San Diego, 1998. [Bra66] F.H. Branin, The algebraic-topological basis for network analogies and the vector cal- culus, Proc. Symp. Generalised Networks, Microwave Research, Institute Symposium Series, vol. 16, Polytechnic Institute of Brooklyn, April 1966, pp. 453{491. [Bra77] , The network concept as a unifying principle in engineering and physical sciences, Problem Analysis in Science and Engineering (K. Husseyin F.H. Branin Jr., ed.), Academic Press, New York, 1977. -
Raoul Bott (1923–2005)
Remembering Raoul Bott (1923–2005) Loring W. Tu, Coordinating Editor With contributions from Rodolfo Gurdian, Stephen Smale, David Mumford, Arthur Jaffe, Shing-Tung Yau, and Loring W. Tu Raoul Bott passed away The contributions are listed in the order in on December 20, 2005. which the contributors first met Raoul Bott. As Over a five-decade career the coordinating editor, I have added a short he made many profound introductory paragraph (in italics) to the beginning and fundamental contri- of each contribution. —Loring Tu butions to geometry and topology. This is the sec- Rodolfo Gurdian ond part of a two-part article in the Notices to Rodolfo Gurdian was one of Raoul Bott’s room- commemorate his life and mates when they were undergraduates at McGill. work. The first part was The imaginary chicken-stealing incident in this arti- an authorized biography, cle is a reference to a real chicken leg incident they “The life and works of experienced together at Mont Tremblant, recounted Raoul Bott” [4], which in [4]. he read and approved What follows is an account of some of the mischief a few years before his that Raoul Bott and I carried out during our days Photo by Bachrach. at McGill. Figure 1. Raoul Bott in 2002. death. Since then there have been at least three I met Raoul in 1941, when we were in our volumes containing remembrances of Raoul Bott first year at McGill University. Both of us lived in by his erstwhile collaborators, colleagues, students, Douglas Hall, a student dormitory of the university, and friends [1], [2], [7]. -
An Invitation to Toric Topology: Vertex Four of a Remarkable Tetrahedron
An Invitation to Toric Topology: Vertex Four of a Remarkable Tetrahedron. Buchstaber, Victor M and Ray, Nigel 2008 MIMS EPrint: 2008.31 Manchester Institute for Mathematical Sciences School of Mathematics The University of Manchester Reports available from: http://eprints.maths.manchester.ac.uk/ And by contacting: The MIMS Secretary School of Mathematics The University of Manchester Manchester, M13 9PL, UK ISSN 1749-9097 Contemporary Mathematics An Invitation to Toric Topology: Vertex Four of a Remarkable Tetrahedron Victor M Buchstaber and Nigel Ray 1. An Invitation Motivation. Sometime around the turn of the recent millennium, those of us in Manchester and Moscow who had been collaborating since the mid-1990s began using the term toric topology to describe our widening interests in certain well-behaved actions of the torus. Little did we realise that, within seven years, a significant international conference would be planned with the subject as its theme, and delightful Japanese hospitality at its heart. When first asked to prepare this article, we fantasised about an authorita- tive and comprehensive survey; one that would lead readers carefully through the foothills above which the subject rises, and provide techniques for gaining sufficient height to glimpse its extensive mathematical vistas. All this, and more, would be illuminated by references to the wonderful Osaka lectures! Soon afterwards, however, reality took hold, and we began to appreciate that such a task could not be completed to our satisfaction within the timescale avail- able. Simultaneously, we understood that at least as valuable a service could be rendered to conference participants by an invitation to a wider mathematical au- dience - an invitation to savour the atmosphere and texture of the subject, to consider its geology and history in terms of selected examples and representative literature, to glimpse its exciting future through ongoing projects; and perhaps to locate favourite Osaka lectures within a novel conceptual framework. -
17 Oct 2019 Sir Michael Atiyah, a Knight Mathematician
Sir Michael Atiyah, a Knight Mathematician A tribute to Michael Atiyah, an inspiration and a friend∗ Alain Connes and Joseph Kouneiher Sir Michael Atiyah was considered one of the world’s foremost mathematicians. He is best known for his work in algebraic topology and the codevelopment of a branch of mathematics called topological K-theory together with the Atiyah-Singer index theorem for which he received Fields Medal (1966). He also received the Abel Prize (2004) along with Isadore M. Singer for their discovery and proof of the index the- orem, bringing together topology, geometry and analysis, and for their outstanding role in building new bridges between mathematics and theoretical physics. Indeed, his work has helped theoretical physicists to advance their understanding of quantum field theory and general relativity. Michael’s approach to mathematics was based primarily on the idea of finding new horizons and opening up new perspectives. Even if the idea was not validated by the mathematical criterion of proof at the beginning, “the idea would become rigorous in due course, as happened in the past when Riemann used analytic continuation to justify Euler’s brilliant theorems.” For him an idea was justified by the new links between different problems which it illuminated. Our experience with him is that, in the manner of an explorer, he adapted to the landscape he encountered on the way until he conceived a global vision of the setting of the problem. Atiyah describes here 1 his way of doing mathematics2 : arXiv:1910.07851v1 [math.HO] 17 Oct 2019 Some people may sit back and say, I want to solve this problem and they sit down and say, “How do I solve this problem?” I don’t. -
Calculus Redux
THE NEWSLETTER OF THE MATHEMATICAL ASSOCIATION OF AMERICA VOLUME 6 NUMBER 2 MARCH-APRIL 1986 Calculus Redux Paul Zorn hould calculus be taught differently? Can it? Common labus to match, little or no feedback on regular assignments, wisdom says "no"-which topics are taught, and when, and worst of all, a rich and powerful subject reduced to Sare dictated by the logic of the subject and by client mechanical drills. departments. The surprising answer from a four-day Sloan Client department's demands are sometimes blamed for Foundation-sponsored conference on calculus instruction, calculus's overcrowded and rigid syllabus. The conference's chaired by Ronald Douglas, SUNY at Stony Brook, is that first surprise was a general agreement that there is room for significant change is possible, desirable, and necessary. change. What is needed, for further mathematics as well as Meeting at Tulane University in New Orleans in January, a for client disciplines, is a deep and sure understanding of diverse and sometimes contentious group of twenty-five fac the central ideas and uses of calculus. Mac Van Valkenberg, ulty, university and foundation administrators, and scientists Dean of Engineering at the University of Illinois, James Ste from client departments, put aside their differences to call venson, a physicist from Georgia Tech, and Robert van der for a leaner, livelier, more contemporary course, more sharply Vaart, in biomathematics at North Carolina State, all stressed focused on calculus's central ideas and on its role as the that while their departments want to be consulted, they are language of science. less concerned that all the standard topics be covered than That calculus instruction was found to be ailing came as that students learn to use concepts to attack problems in a no surprise. -
Quillen's Work in Algebraic K-Theory
J. K-Theory 11 (2013), 527–547 ©2013 ISOPP doi:10.1017/is012011011jkt203 Quillen’s work in algebraic K-theory by DANIEL R. GRAYSON Abstract We survey the genesis and development of higher algebraic K-theory by Daniel Quillen. Key Words: higher algebraic K-theory, Quillen. Mathematics Subject Classification 2010: 19D99. Introduction This paper1 is dedicated to the memory of Daniel Quillen. In it, we examine his brilliant discovery of higher algebraic K-theory, including its roots in and genesis from topological K-theory and ideas connected with the proof of the Adams conjecture, and his development of the field into a complete theory in just a few short years. We provide a few references to further developments, including motivic cohomology. Quillen’s main work on algebraic K-theory appears in the following papers: [65, 59, 62, 60, 61, 63, 55, 57, 64]. There are also the papers [34, 36], which are presentations of Quillen’s results based on hand-written notes of his and on communications with him, with perhaps one simplification and several inaccuracies added by the author. Further details of the plus-construction, presented briefly in [57], appear in [7, pp. 84–88] and in [77]. Quillen’s work on Adams operations in higher algebraic K-theory is exposed by Hiller in [45, sections 1-5]. Useful surveys of K-theory and related topics include [81, 46, 38, 39, 67] and any chapter in Handbook of K-theory [27]. I thank Dale Husemoller, Friedhelm Waldhausen, Chuck Weibel, and Lars Hesselholt for useful background information and advice. 1. -
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Arxiv:2109.00654V1 [Math.GT]
SIMPLY-CONNECTED MANIFOLDS WITH LARGE HOMOTOPY STABLE CLASSES ANTHONY CONWAY, DIARMUID CROWLEY, MARK POWELL, AND JOERG SIXT Abstract. For every k ≥ 2 and n ≥ 2 we construct n pairwise homotopically inequivalent simply-connected, closed 4k-dimensional manifolds, all of which are stably diffeomorphic to one another. Each of these manifolds has hyperbolic intersection form and is stably parallelisable. In dimension 4, we exhibit an analogous phenomenon for spinc structures on S2 × S2. For m ≥ 1, we also provide similar (4m−1)-connected 8m-dimensional examples, where the number of homotopy types in a stable diffeomorphism class is related to the order of the s image of the stable J-homomorphism π4m−1(SO) → π4m−1. 1. Introduction q q Let q be a positive integer and let Wg := #g(S × S ) be the g-fold connected sum of the q q manifold S × S with itself. Two compact, connected smooth 2q-manifolds M0 and M1 with the same Euler characteristic are stably diffeomorphic, written M0 =∼st M1, if there exists a non-negative integer g and a diffeomorphism M0#Wg → M1#Wg. Note that Sq × Sq admits an orientation-reversing diffeomorphism. Hence the same is true of Wg and it follows that when the Mi are orientable the diffeomorphism type of the connected sum does not depend on orientations. A paradigm of modified surgery, as developed by Kreck [Kre99], is that one first seeks to classify 2q-manifolds up to stable diffeomorphism, and then for each M0 one tries to understand its stable class: st S (M0) := {M1 | M1 =∼st M0}/diffeomorphism. -
Raoul Bott: Collected Papers Volume 5 Series: Contemporary Mathematicians
birkhauser-science.de Loring W. Tu (Ed.) Raoul Bott: Collected Papers Volume 5 Series: Contemporary Mathematicians Fifth and final volume of Raoul Bott's completed works Offers personal insights on the life and work of one of the foremost mathematicians of the twentieth century Features topics of current interest, such as stable vector bundles, knot and manifold invariants, equivariant cohomology, and loop spaces This book is the fifth and final volume of Raoul Bott’s Collected Papers. It collects all of Bott’s published articles since 1991 as well as some articles published earlier but missing in the earlier volumes. The volume also contains interviews with Raoul Bott, several of his previously unpublished speeches, commentaries by his collaborators such as Alberto Cattaneo and Jonathan Weitsman on their joint articles with Bott, Michael Atiyah’s obituary of Raoul Bott, 1st ed. 2017, XIX, 676 p. 199 illus., 53 Loring Tu’s authorized biography of Raoul Bott, and reminiscences of Raoul Bott by his friends, illus. in color. students, colleagues, and collaborators, among them Stephen Smale, David Mumford, Arthur Jaffe, Shing-Tung Yau, and Loring Tu. The mathematical articles, many inspired by physics, Printed book encompass stable vector bundles, knot and manifold invariants, equivariant cohomology, and Hardcover loop spaces. The nonmathematical contributions give a sense of Bott’s approach to 139,99 € | £119.99 | $169.99 mathematics, style, personality, zest for life, and humanity.In one of the articles, from the [1]149,79 € (D) | 153,99 € (A) | CHF vantage point of his later years, Raoul Bott gives a tour-de-force historical account of one of 165,50 his greatest achievements, the Bott periodicity theorem.A large number of the articles originally appeared in hard-to-find conference proceedings or journals. -
Major Awards Winners in Mathematics: A
International Journal of Advanced Information Science and Technology (IJAIST) ISSN: 2319:2682 Vol.3, No.10, October 2014 DOI:10.15693/ijaist/2014.v3i10.81-92 Major Awards Winners in Mathematics: A Bibliometric Study Rajani. S Dr. Ravi. B Research Scholar, Rani Channamma University, Deputy Librarian Belagavi & Professional Assistant, Bangalore University of Hyderabad, Hyderabad University Library, Bangalore II. MATHEMATICS AS A DISCIPLINE Abstract— The purpose of this paper is to study the bibliometric analysis of major awards like Fields Medal, Wolf Prize and Abel Mathematics is the discipline; it deals with concepts such Prize in Mathematics, as a discipline since 1936 to 2014. Totally as quantity, structure, space and change. It is use of abstraction there are 120 nominees of major awards are received in these and logical reasoning, from counting, calculation, honors. The data allow us to observe the evolution of the profiles of measurement and the study of the shapes and motions of winners and nominations during every year. The analysis shows physical objects. According to the Aristotle defined that top ranking of the author’s productivity in mathematics mathematics as "the science of quantity", and this definition discipline and also that would be the highest nominees received the prevailed until the 18th century. Benjamin Peirce called it "the award at Institutional wise and Country wise. competitors. The science that draws necessary conclusions". United States of America awardees got the highest percentage of about 50% in mathematics prize. According to David Hilbert said that "We are not speaking Index terms –Bibliometric, Mathematics, Awards and Nobel here of arbitrariness in any sense.