Zaneville Testimonial Excerpts and Reminisces
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Bibliography
Bibliography [1] Emil Artin. Galois Theory. Dover, second edition, 1964. [2] Michael Artin. Algebra. Prentice Hall, first edition, 1991. [3] M. F. Atiyah and I. G. Macdonald. Introduction to Commutative Algebra. Addison Wesley, third edition, 1969. [4] Nicolas Bourbaki. Alg`ebre, Chapitres 1-3.El´ements de Math´ematiques. Hermann, 1970. [5] Nicolas Bourbaki. Alg`ebre, Chapitre 10.El´ements de Math´ematiques. Masson, 1980. [6] Nicolas Bourbaki. Alg`ebre, Chapitres 4-7.El´ements de Math´ematiques. Masson, 1981. [7] Nicolas Bourbaki. Alg`ebre Commutative, Chapitres 8-9.El´ements de Math´ematiques. Masson, 1983. [8] Nicolas Bourbaki. Elements of Mathematics. Commutative Algebra, Chapters 1-7. Springer–Verlag, 1989. [9] Henri Cartan and Samuel Eilenberg. Homological Algebra. Princeton Math. Series, No. 19. Princeton University Press, 1956. [10] Jean Dieudonn´e. Panorama des mat´ematiques pures. Le choix bourbachique. Gauthiers-Villars, second edition, 1979. [11] David S. Dummit and Richard M. Foote. Abstract Algebra. Wiley, second edition, 1999. [12] Albert Einstein. Zur Elektrodynamik bewegter K¨orper. Annalen der Physik, 17:891–921, 1905. [13] David Eisenbud. Commutative Algebra With A View Toward Algebraic Geometry. GTM No. 150. Springer–Verlag, first edition, 1995. [14] Jean-Pierre Escofier. Galois Theory. GTM No. 204. Springer Verlag, first edition, 2001. [15] Peter Freyd. Abelian Categories. An Introduction to the theory of functors. Harper and Row, first edition, 1964. [16] Sergei I. Gelfand and Yuri I. Manin. Homological Algebra. Springer, first edition, 1999. [17] Sergei I. Gelfand and Yuri I. Manin. Methods of Homological Algebra. Springer, second edition, 2003. [18] Roger Godement. Topologie Alg´ebrique et Th´eorie des Faisceaux. -
The Probl\Eme Des M\'Enages Revisited
The probl`emedes m´enages revisited Lefteris Kirousis and Georgios Kontogeorgiou Department of Mathematics National and Kapodistrian University of Athens [email protected], [email protected] August 13, 2018 Abstract We present an alternative proof to the Touchard-Kaplansky formula for the probl`emedes m´enages, which, we believe, is simpler than the extant ones and is in the spirit of the elegant original proof by Kaplansky (1943). About the latter proof, Bogart and Doyle (1986) argued that despite its cleverness, suffered from opting to give precedence to one of the genders for the couples involved (Bogart and Doyle supplied an elegant proof that avoided such gender-dependent bias). The probl`emedes m´enages (the couples problem) asks to count the number of ways that n man-woman couples can sit around a circular table so that no one sits next to her partner or someone of the same gender. The problem was first stated in an equivalent but different form by Tait [11, p. 159] in the framework of knot theory: \How many arrangements are there of n letters, when A cannot be in the first or second place, B not in the second or third, &c." It is easy to see that the m´enageproblem is equivalent to Tait's arrangement problem: first sit around the table, in 2n! ways, the men or alternatively the women, leaving an empty space between any two consecutive of them, then count the number of ways to sit the members of the other gender. Recurrence relations that compute the answer to Tait's question were soon given by Cayley and Muir [2,9,3, 10]. -
Calendar of AMS Meetings and Conferences
Calendar of AMS Meetings and Conferences This calendar lists all meetings and conferences approved prior to the date this insofar as is possible. Abstracts should be submitted on special forms which are issue went to press. The summer and annual meetings are joint meetings of the available in many departments of mathematics and from the headquarters office of Mathematical Association of America and the American Mathematical Society. The the Society. Abstracts of papers to be presented at the meeting must be received meeting dates which fall rather far in the future are subject to change; this is par at the headquarters of the Society in Providence, Rhode Island, on or before the ticularly true of meetings to which no numbers have been assigned. Programs of deadline given below for the meeting. The abstract deadlines listed below should the meetings will appear in the issues indicated below. First and supplementary be carefully reviewed since an abstract deadline may expire before publication of announcements of the meetings will have appeared in earlier issues. Abstracts a first announcement. Note that the deadline for abstracts for consideration for of papers presented at a meeting of the Society are published in the journal Ab presentation at special sessions is usually three weeks earlier than that specified stracts of papers presented to the American Mathematical Society in the issue below. For additional information, consult the meeting announcements and the list corresponding to that of the Notices which contains the program of the meeting, of special sessions. Meetings Abstract Program Meeting# Date Place Deadline Issue 876 * October 30-November 1 , 1992 Dayton, Ohio August 3 October 877 * November ?-November 8, 1992 Los Angeles, California August 3 October 878 * January 13-16, 1993 San Antonio, Texas OctoberS December (99th Annual Meeting) 879 * March 26-27, 1993 Knoxville, Tennessee January 5 March 880 * April9-10, 1993 Salt Lake City, Utah January 29 April 881 • Apnl 17-18, 1993 Washington, D.C. -
Nilpotent Elements Control the Structure of a Module
Nilpotent elements control the structure of a module David Ssevviiri Department of Mathematics Makerere University, P.O BOX 7062, Kampala Uganda E-mail: [email protected], [email protected] Abstract A relationship between nilpotency and primeness in a module is investigated. Reduced modules are expressed as sums of prime modules. It is shown that presence of nilpotent module elements inhibits a module from possessing good structural properties. A general form is given of an example used in literature to distinguish: 1) completely prime modules from prime modules, 2) classical prime modules from classical completely prime modules, and 3) a module which satisfies the complete radical formula from one which is neither 2-primal nor satisfies the radical formula. Keywords: Semisimple module; Reduced module; Nil module; K¨othe conjecture; Com- pletely prime module; Prime module; and Reduced ring. MSC 2010 Mathematics Subject Classification: 16D70, 16D60, 16S90 1 Introduction Primeness and nilpotency are closely related and well studied notions for rings. We give instances that highlight this relationship. In a commutative ring, the set of all nilpotent elements coincides with the intersection of all its prime ideals - henceforth called the prime radical. A popular class of rings, called 2-primal rings (first defined in [8] and later studied in [23, 26, 27, 28] among others), is defined by requiring that in a not necessarily commutative ring, the set of all nilpotent elements coincides with the prime radical. In an arbitrary ring, Levitzki showed that the set of all strongly nilpotent elements coincides arXiv:1812.04320v1 [math.RA] 11 Dec 2018 with the intersection of all prime ideals, [29, Theorem 2.6]. -
A Century of Mathematics in America, Peter Duren Et Ai., (Eds.), Vol
Garrett Birkhoff has had a lifelong connection with Harvard mathematics. He was an infant when his father, the famous mathematician G. D. Birkhoff, joined the Harvard faculty. He has had a long academic career at Harvard: A.B. in 1932, Society of Fellows in 1933-1936, and a faculty appointmentfrom 1936 until his retirement in 1981. His research has ranged widely through alge bra, lattice theory, hydrodynamics, differential equations, scientific computing, and history of mathematics. Among his many publications are books on lattice theory and hydrodynamics, and the pioneering textbook A Survey of Modern Algebra, written jointly with S. Mac Lane. He has served as president ofSIAM and is a member of the National Academy of Sciences. Mathematics at Harvard, 1836-1944 GARRETT BIRKHOFF O. OUTLINE As my contribution to the history of mathematics in America, I decided to write a connected account of mathematical activity at Harvard from 1836 (Harvard's bicentennial) to the present day. During that time, many mathe maticians at Harvard have tried to respond constructively to the challenges and opportunities confronting them in a rapidly changing world. This essay reviews what might be called the indigenous period, lasting through World War II, during which most members of the Harvard mathe matical faculty had also studied there. Indeed, as will be explained in §§ 1-3 below, mathematical activity at Harvard was dominated by Benjamin Peirce and his students in the first half of this period. Then, from 1890 until around 1920, while our country was becoming a great power economically, basic mathematical research of high quality, mostly in traditional areas of analysis and theoretical celestial mechanics, was carried on by several faculty members. -
Irving Kaplansky
Portraying and remembering Irving Kaplansky Hyman Bass University of Michigan Mathematical Sciences Research Institute • February 23, 2007 1 Irving (“Kap”) Kaplansky “infinitely algebraic” “I liked the algebraic way of looking at things. I’m additionally fascinated when the algebraic method is applied to infinite objects.” 1917 - 2006 A Gallery of Portraits 2 Family portrait: Kap as son • Born 22 March, 1917 in Toronto, (youngest of 4 children) shortly after his parents emigrated to Canada from Poland. • Father Samuel: Studied to be a rabbi in Poland; worked as a tailor in Toronto. • Mother Anna: Little schooling, but enterprising: “Health Bread Bakeries” supported (& employed) the whole family 3 Kap’s father’s grandfather Kap’s father’s parents Kap (age 4) with family 4 Family Portrait: Kap as father • 1951: Married Chellie Brenner, a grad student at Harvard Warm hearted, ebullient, outwardly emotional (unlike Kap) • Three children: Steven, Alex, Lucy "He taught me and my brothers a lot, (including) what is really the most important lesson: to do the thing you love and not worry about making money." • Died 25 June, 2006, at Steven’s home in Sherman Oaks, CA Eight months before his death he was still doing mathematics. Steven asked, -“What are you working on, Dad?” -“It would take too long to explain.” 5 Kap & Chellie marry 1951 Family portrait, 1972 Alex Steven Lucy Kap Chellie 6 Kap – The perfect accompanist “At age 4, I was taken to a Yiddish musical, Die Goldene Kala. It was a revelation to me that there could be this kind of entertainment with music. -
Ring (Mathematics) 1 Ring (Mathematics)
Ring (mathematics) 1 Ring (mathematics) In mathematics, a ring is an algebraic structure consisting of a set together with two binary operations usually called addition and multiplication, where the set is an abelian group under addition (called the additive group of the ring) and a monoid under multiplication such that multiplication distributes over addition.a[›] In other words the ring axioms require that addition is commutative, addition and multiplication are associative, multiplication distributes over addition, each element in the set has an additive inverse, and there exists an additive identity. One of the most common examples of a ring is the set of integers endowed with its natural operations of addition and multiplication. Certain variations of the definition of a ring are sometimes employed, and these are outlined later in the article. Polynomials, represented here by curves, form a ring under addition The branch of mathematics that studies rings is known and multiplication. as ring theory. Ring theorists study properties common to both familiar mathematical structures such as integers and polynomials, and to the many less well-known mathematical structures that also satisfy the axioms of ring theory. The ubiquity of rings makes them a central organizing principle of contemporary mathematics.[1] Ring theory may be used to understand fundamental physical laws, such as those underlying special relativity and symmetry phenomena in molecular chemistry. The concept of a ring first arose from attempts to prove Fermat's last theorem, starting with Richard Dedekind in the 1880s. After contributions from other fields, mainly number theory, the ring notion was generalized and firmly established during the 1920s by Emmy Noether and Wolfgang Krull.[2] Modern ring theory—a very active mathematical discipline—studies rings in their own right. -
Cohomological Length Functions 3
COHOMOLOGICAL LENGTH FUNCTIONS HENNING KRAUSE Abstract. We study certain integer valued length functions on triangulated categories and establish a correspondence between such functions and cohomo- logical functors taking values in the category of finite length modules over some ring. The irreducible cohomological functions form a topological space. We discuss its basic properties and include explicit calculations for the category of perfect complexes over some specific rings. 1. Introduction ∼ Let C be a triangulated category with suspension Σ: C −→ C. Given a cohomo- logical functor H : Cop → Mod k into the category of modules over some ring k such that H(C) has finite length for each object C, we consider the function N χ: Ob C −→ , C 7→ lengthk H(C), and ask: – what are the characteristic properties of such a function Ob C −→ N, and – can we recover H from χ? Somewhat surprisingly, we can offer fairly complete answers to both questions. Note that similar questions arise in Boij–S¨oderberg theory when cohomology tables are studied; recent progress [8, 9] provided some motivation for our work. Further motivation comes from the quest (initiated by Paul Balmer, for instance) for points in the context of triangulated categories. Typical examples of cohomological functors are the representable functors of the form Hom(−,X) for some object X in C. We begin with a result that takes care of this case; its proof is elementary and based on a theorem of Bongartz [4]. Theorem 1.1 (Jensen–Su–Zimmerman [19]). Let k be a commutative ring and C a k-linear triangulated category such that each morphism set in C has finite length as a k-module. -
Harish-Chandra 1923–1983
NATIONAL ACADEMY OF SCIENCES HARISH- C HANDRA 1 9 2 3 – 1 9 8 3 A Biographical Memoir by R O G E R H O W E Any opinions expressed in this memoir are those of the author and do not necessarily reflect the views of the National Academy of Sciences. Biographical Memoir COPYRIGHT 2011 NATIONAL ACADEMY OF SCIENCES WASHINGTON, D.C. Photo by Herman Landshoff; Courtesy Archives of the Institute for Advanced Study. HARISH-CHANDRA October 11, 1923–October 12, 1983 BY ROGER HOWE He taught them the Kshatria code of honor: that a warrior may never refuse a challenge…. The Five Sons of Pandu, The Story of the Mahabharata Retold by Elizabeth Seeger ARISH-CHANDRA WAS, if not the exclusive architect, cer- Htainly the chief engineer of harmonic analysis on semisimple Lie groups. This subject, with roots deep in mathematical physics and analysis, is a synthesis of Fou- rier analysis, special functions and invariant theory, and it has become a basic tool in analytic number theory, via the theory of automorphic forms. It essentially did not ex- ist before World War II, but in very large part because of the labors of Harish-Chandra, it became one of the major mathematical edifices of the second half of the twentieth century. Harish-Chandra was born in 1923 in Uttar Pradesh, in northern India. His family belonged to the Kshatria (war- rior) caste. Kshatria traditionally were rulers, landowners, and military leaders, and more recently have commonly been businessmen or civil servants. Harish-Chandra’s father, Chandrakishore, was a civil engineer who monitored and maintained the dikes and irrigation canals that sustain agri- 3 B IOGRA P HICAL MEMOIRS culture on the North Indian plains. -
CELEBRATIO MATHEMATICA Saunders Mac Lane (2013) Msp 1
PROOFS - PAGE NUMBERS ARE TEMPORARY 1 1 1 /2 2 3 4 5 6 7 8 CELEBRATIO 9 10 11 MATHEMATICA 12 13 14 15 16 17 18 Saunders Mac Lane 19 20 1 20 /2 21 22 23 24 25 26 JOHN G. THOMPSON 27 28 THE MAC LANE LECTURE 29 30 2013 31 32 33 34 35 36 37 38 39 1 39 /2 40 41 msp 42 1 43 44 45 http://celebratio.org/ 46 47 48 49 50 51 1 CELEBRATIO MATHEMATICA Saunders Mac Lane (2013) msp 1 THE MAC LANE LECTURE JOHN G. THOMPSON First published: 2 December 2005 Shortly after the death of Saunders Mac Lane in April, Krishna [Alladi] asked me if I would be willing to speak publicly about Saunders. I agreed to do so, but asked for time to think about and to prepare my remarks. In the meantime, Saunders’s autobiography[2005] has appeared, and it has been helpful to me. I expect that everyone here is aware of the book and the movie “A beautiful mind” which explore the life of John Nash. You will know that for many years, Nash was insane with schizophrenia. For most of us, and certainly for me, insanity is frightening and far from beautiful. I submit that Saunders had a genuinely beautiful mind. Except for an elite few of us, Mac Lane’s life and work do not have the drama and punch of Nash’s odyssey. I see my note today as a recorder, neither a hagiographer nor a debunker. Mac Lane’s mental world had great lucidity and covered much territory. -
Scientific Workplace· • Mathematical Word Processing • LATEX Typesetting Scientific Word· • Computer Algebra
Scientific WorkPlace· • Mathematical Word Processing • LATEX Typesetting Scientific Word· • Computer Algebra (-l +lr,:znt:,-1 + 2r) ,..,_' '"""""Ke~r~UrN- r o~ r PooiliorK 1.931'J1 Po6'lf ·1.:1l26!.1 Pod:iDnZ 3.881()2 UfW'IICI(JI)( -2.801~ ""'"""U!NecteoZ l!l!iS'11 v~ 0.7815399 Animated plots ln spherical coordln1tes > To make an anlm.ted plot In spherical coordinates 1. Type an expression In thr.. variables . 2 WMh the Insertion poilt In the expression, choose Plot 3D The next exampfe shows a sphere that grows ftom radius 1 to .. Plot 3D Animated + Spherical The Gold Standard for Mathematical Publishing Scientific WorkPlace and Scientific Word Version 5.5 make writing, sharing, and doing mathematics easier. You compose and edit your documents directly on the screen, without having to think in a programming language. A click of a button allows you to typeset your documents in LAT£X. You choose to print with or without LATEX typesetting, or publish on the web. Scientific WorkPlace and Scientific Word enable both professionals and support staff to produce stunning books and articles. Also, the integrated computer algebra system in Scientific WorkPlace enables you to solve and plot equations, animate 20 and 30 plots, rotate, move, and fly through 3D plots, create 3D implicit plots, and more. MuPAD' Pro MuPAD Pro is an integrated and open mathematical problem solving environment for symbolic and numeric computing. Visit our website for details. cK.ichan SOFTWARE , I NC. Visit our website for free trial versions of all our products. www.mackichan.com/notices • Email: info@mac kichan.com • Toll free: 877-724-9673 It@\ A I M S \W ELEGRONIC EDITORIAL BOARD http://www.math.psu.edu/era/ Managing Editors: This electronic-only journal publishes research announcements (up to about 10 Keith Burns journal pages) of significant advances in all branches of mathematics. -
Joseph Wedderburn
Joseph Wedderburn Joseph Wedderburn Maclagan Henry (1882-1948) 02 februarie 1882 Născut Forfar , Angus , Scoţia 09 octombrie 1948 (cu vârsta 66) Decedat Princeton, New Jersey , Statele Unite ale Americii Reşedinţă Statele Unite ale Americii Cetăţenie American Naţionalitate Scoţian Domenii Matematician Instituţii Universitatea Princeton Alma Mater Universitatea din Edinburgh De doctorat George Chrystal Merrill Flood Doctoranzi Nathan Jacobson Ernst Snapper Cunoscut pentru Artin-Wedderburn teorema premii MacDougall-Brisbane Medalia de aur notabile Joseph Henry Maclagan Wedderburn (02 februarie 1882 Forfar, Angus , Scoţia - 9 octombrie 1948, Princeton, New Jersey ) a fost un matematician scoţian, care a predat la Universitatea Princeton pentru cea mai mare din cariera sa. Algebrist de prestigiu , el a dovedit că orice corp finit este comutativ , şi o parte a teoremei Artin-Wedderburn referitoare la algebre. De asemenea, el a lucrat in teoria grupurilor si algebra matricilor . Viaţa si opera Joseph Wedderburn a fost al zecelea din cei 14 copii ai medicului Alexander Wedderburn şi ai Ogilvie Anne. În 1898, el a intrat la Universitatea din Edinburgh . In 1903, el a publicat primele trei lucrari, a lucrat ca asistent la Laboratorul de Fizică a Universităţii, şi a obţinut o diplomă MA cu onoruri deosebite în matematică. A studiat apoi timp scurt la Universitatea din Leipzig şi Universitatea din Berlin, unde s-a întâlnit cu algebriştii Frobenius şi Schur. O Bursa Carnegie i-a permis să-şi petreacă anul universitar 1904-1905 la Universitatea din Chicago, unde a lucrat cu Oswald Veblen , EH Moore , şi cel mai important, Leonard Dickson , care avea să devină cel mai important algebrist american al acelor timpuri.