Successive Spectral Sequences
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Samuel Eilenberg Assistant Professorships
Faculty of Mathematics, Informatics and Mechanics Dean, Professor Paweł Strzelecki Samuel Eilenberg Assistant Professorships Four academic positions in the group of researchers and lecturers are vailable at the Faculty of Mathematics, Informatics and Mechanics Pursuant to the Law on Higher Education and Science, the Univeristy of Warsaw invites the applications for four positions of Samuel Eilenberg Assistant Professorships. Samuel Eilenberg (1913-1998) obtained his PhD degree in Mathematics at the University of Warsaw in 1936 under the supervision of Kazimierz Kuratowski and Karol Borsuk. He spent most of his career in the USA as a professor at Columbia Univeristy. He exerted a critical influence on contemporary mathematics and theoretical computer science; he was a co- founder of modern topology, category theory, homological algebra, and automata theory. His scientific development epitomizes openness to new ideas and readiness to face demanding intellectual challenges. Terms of employment: starting date October 1, 2020; full time job, competitive salary, fixed term employment contract for 2 or 4 years (to be decided with successful applicants). The candidates will concentrate on intensive research and will have reduced teaching duties (120 teaching hours per academic year). Requirements. Successful candidates for Samuel Eilenberg Professorships should have: 1. a PhD degree in mathematics, computer science or related fields obtained in the past 5 years; 2. significant papers in mathematics or computer science, published in refereed, globally recognized journals or confer- ences; 3. teaching experience and willingness to undertake organizational activities related to teaching; 4. significant international experience (internships or post-doctoral fellowships, projects etc.). Candidates obtain extra points for: • research fellowships outside Poland within the last two years; • high pace of scientific development that is confirmed by high quality papers; a clear concept of maintaining this development is required. -
Cohomology Theory of Lie Groups and Lie Algebras
COHOMOLOGY THEORY OF LIE GROUPS AND LIE ALGEBRAS BY CLAUDE CHEVALLEY AND SAMUEL EILENBERG Introduction The present paper lays no claim to deep originality. Its main purpose is to give a systematic treatment of the methods by which topological questions concerning compact Lie groups may be reduced to algebraic questions con- cerning Lie algebras^). This reduction proceeds in three steps: (1) replacing questions on homology groups by questions on differential forms. This is accomplished by de Rham's theorems(2) (which, incidentally, seem to have been conjectured by Cartan for this very purpose); (2) replacing the con- sideration of arbitrary differential forms by that of invariant differential forms: this is accomplished by using invariant integration on the group manifold; (3) replacing the consideration of invariant differential forms by that of alternating multilinear forms on the Lie algebra of the group. We study here the question not only of the topological nature of the whole group, but also of the manifolds on which the group operates. Chapter I is concerned essentially with step 2 of the list above (step 1 depending here, as in the case of the whole group, on de Rham's theorems). Besides consider- ing invariant forms, we also introduce "equivariant" forms, defined in terms of a suitable linear representation of the group; Theorem 2.2 states that, when this representation does not contain the trivial representation, equi- variant forms are of no use for topology; however, it states this negative result in the form of a positive property of equivariant forms which is of interest by itself, since it is the key to Levi's theorem (cf. -
Algebraic Topology - Wikipedia, the Free Encyclopedia Page 1 of 5
Algebraic topology - Wikipedia, the free encyclopedia Page 1 of 5 Algebraic topology From Wikipedia, the free encyclopedia Algebraic topology is a branch of mathematics which uses tools from abstract algebra to study topological spaces. The basic goal is to find algebraic invariants that classify topological spaces up to homeomorphism, though usually most classify up to homotopy equivalence. Although algebraic topology primarily uses algebra to study topological problems, using topology to solve algebraic problems is sometimes also possible. Algebraic topology, for example, allows for a convenient proof that any subgroup of a free group is again a free group. Contents 1 The method of algebraic invariants 2 Setting in category theory 3 Results on homology 4 Applications of algebraic topology 5 Notable algebraic topologists 6 Important theorems in algebraic topology 7 See also 8 Notes 9 References 10 Further reading The method of algebraic invariants An older name for the subject was combinatorial topology , implying an emphasis on how a space X was constructed from simpler ones (the modern standard tool for such construction is the CW-complex ). The basic method now applied in algebraic topology is to investigate spaces via algebraic invariants by mapping them, for example, to groups which have a great deal of manageable structure in a way that respects the relation of homeomorphism (or more general homotopy) of spaces. This allows one to recast statements about topological spaces into statements about groups, which are often easier to prove. Two major ways in which this can be done are through fundamental groups, or more generally homotopy theory, and through homology and cohomology groups. -
On Relations Between Adams Spectral Sequences, with an Application to the Stable Homotopy of a Moore Space
Journal of Pure and Applied Algebra 20 (1981) 287-312 0 North-Holland Publishing Company ON RELATIONS BETWEEN ADAMS SPECTRAL SEQUENCES, WITH AN APPLICATION TO THE STABLE HOMOTOPY OF A MOORE SPACE Haynes R. MILLER* Harvard University, Cambridge, MA 02130, UsA Communicated by J.F. Adams Received 24 May 1978 0. Introduction A ring-spectrum B determines an Adams spectral sequence Ez(X; B) = n,(X) abutting to the stable homotopy of X. It has long been recognized that a map A +B of ring-spectra gives rise to information about the differentials in this spectral sequence. The main purpose of this paper is to prove a systematic theorem in this direction, and give some applications. To fix ideas, let p be a prime number, and take B to be the modp Eilenberg- MacLane spectrum H and A to be the Brown-Peterson spectrum BP at p. For p odd, and X torsion-free (or for example X a Moore-space V= So Up e’), the classical Adams E2-term E2(X;H) may be trigraded; and as such it is E2 of a spectral sequence (which we call the May spectral sequence) converging to the Adams- Novikov Ez-term E2(X; BP). One may say that the classical Adams spectral sequence has been broken in half, with all the “BP-primary” differentials evaluated first. There is in fact a precise relationship between the May spectral sequence and the H-Adams spectral sequence. In a certain sense, the May differentials are the Adams differentials modulo higher BP-filtration. One may say the same for p=2, but in a more attenuated sense. -
Interview with Henri Cartan, Volume 46, Number 7
fea-cartan.qxp 6/8/99 4:50 PM Page 782 Interview with Henri Cartan The following interview was conducted on March 19–20, 1999, in Paris by Notices senior writer and deputy editor Allyn Jackson. Biographical Sketch in 1975. Cartan is a member of the Académie des Henri Cartan is one of Sciences of Paris and of twelve other academies in the first-rank mathe- Europe, the United States, and Japan. He has re- maticians of the twen- ceived honorary doc- tieth century. He has torates from several had a lasting impact universities, and also through his research, the Wolf Prize in which spans a wide va- Mathematics in 1980. riety of areas, as well Early Years as through his teach- ing, his students, and Notices: Let’s start at the famed Séminaire the beginning of your Cartan. He is one of the life. What are your founding members of earliest memories of Bourbaki. His book Ho- mathematical inter- mological Algebra, writ- est? ten with Samuel Eilen- Cartan: I have al- berg and first published ways been interested Henri Cartan’s father, Élie Photograph by Sophie Caretta. in 1956, is still in print in mathematics. But Cartan. Henri Cartan, 1996. and remains a standard I don’t think it was reference. because my father The son of Élie Cartan, who is considered to be was a mathematician. I had no doubt that I could the founder of modern differential geometry, Henri become a mathematician. I had many teachers, Cartan was born on July 8, 1904, in Nancy, France. good or not so good. -
Fundamental Theorems in Mathematics
SOME FUNDAMENTAL THEOREMS IN MATHEMATICS OLIVER KNILL Abstract. An expository hitchhikers guide to some theorems in mathematics. Criteria for the current list of 243 theorems are whether the result can be formulated elegantly, whether it is beautiful or useful and whether it could serve as a guide [6] without leading to panic. The order is not a ranking but ordered along a time-line when things were writ- ten down. Since [556] stated “a mathematical theorem only becomes beautiful if presented as a crown jewel within a context" we try sometimes to give some context. Of course, any such list of theorems is a matter of personal preferences, taste and limitations. The num- ber of theorems is arbitrary, the initial obvious goal was 42 but that number got eventually surpassed as it is hard to stop, once started. As a compensation, there are 42 “tweetable" theorems with included proofs. More comments on the choice of the theorems is included in an epilogue. For literature on general mathematics, see [193, 189, 29, 235, 254, 619, 412, 138], for history [217, 625, 376, 73, 46, 208, 379, 365, 690, 113, 618, 79, 259, 341], for popular, beautiful or elegant things [12, 529, 201, 182, 17, 672, 673, 44, 204, 190, 245, 446, 616, 303, 201, 2, 127, 146, 128, 502, 261, 172]. For comprehensive overviews in large parts of math- ematics, [74, 165, 166, 51, 593] or predictions on developments [47]. For reflections about mathematics in general [145, 455, 45, 306, 439, 99, 561]. Encyclopedic source examples are [188, 705, 670, 102, 192, 152, 221, 191, 111, 635]. -
Periodic Phenomena in the Classical Adams Spectral
TRANSACTIONS of the AMERICAN MATHEMATICAL SOCIETY Volume 300. Number 1. March 1987 PERIODIC PHENOMENAIN THE CLASSICAL ADAMSSPECTRAL SEQUENCE MARK MAH0WALD AND PAUL SHICK Abstract. We investigate certain periodic phenomena in the classical Adams sepctral sequence which are related to the polynomial generators v„ in ot„(BP). We define the notion of a class a in Ext^ (Z/2, Z/2) being t>„-periodic or t>„-torsion and prove that classes that are u„-torsion are also uA.-torsion for all k such that 0 < k < «. This allows us to define a chromatic filtration of ExtA (Z/2, Z/2) paralleling the chromatic filtration of the Novikov spectral sequence £rterm given in [13]. 1. Introduction and statement of results. This work is motivated by a desire to understand something of the periodic phenomena noticed by Miller, Ravenel and Wilson in their work on the Novikov spectral sequence from the point of view of the classical Adams spectral sequence. The iij-term of the classical Adams spectral sequence (hereafter abbreviated clASS) is isomorphic to Ext A(Z/2, Z/2), where A is the mod 2 Steenrod algebra. This has been calculated completely in the range t — s < 70 [17]. The stem-by-stem calculation is quite tedious, though, so one looks for more global sorts of phenomena. The first result in this direction was the discovery of a periodic family in 7r*(S°) and their representatives in Ext A(Z/2, Z/2), discussed by Adams in [2] and by Barratt in [4]. This stable family, which is present for all primes p, is often denoted by {a,} and is thought of as v1-periodic, where y, is the polynomial generator of degree 2( p - 1) in 77+(BP)= Z^Jdj, v2,.. -
Council Congratulates Exxon Education Foundation
from.qxp 4/27/98 3:17 PM Page 1315 From the AMS ics. The Exxon Education Foundation funds programs in mathematics education, elementary and secondary school improvement, undergraduate general education, and un- dergraduate developmental education. —Timothy Goggins, AMS Development Officer AMS Task Force Receives Two Grants The AMS recently received two new grants in support of its Task Force on Excellence in Mathematical Scholarship. The Task Force is carrying out a program of focus groups, site visits, and information gathering aimed at developing (left to right) Edward Ahnert, president of the Exxon ways for mathematical sciences departments in doctoral Education Foundation, AMS President Cathleen institutions to work more effectively. With an initial grant Morawetz, and Robert Witte, senior program officer for of $50,000 from the Exxon Education Foundation, the Task Exxon. Force began its work by organizing a number of focus groups. The AMS has now received a second grant of Council Congratulates Exxon $50,000 from the Exxon Education Foundation, as well as a grant of $165,000 from the National Science Foundation. Education Foundation For further information about the work of the Task Force, see “Building Excellence in Doctoral Mathematics De- At the Summer Mathfest in Burlington in August, the AMS partments”, Notices, November/December 1995, pages Council passed a resolution congratulating the Exxon Ed- 1170–1171. ucation Foundation on its fortieth anniversary. AMS Pres- ident Cathleen Morawetz presented the resolution during —Timothy Goggins, AMS Development Officer the awards banquet to Edward Ahnert, president of the Exxon Education Foundation, and to Robert Witte, senior program officer with Exxon. -
FOCUS August/September 2005
FOCUS August/September 2005 FOCUS is published by the Mathematical Association of America in January, February, March, April, May/June, FOCUS August/September, October, November, and Volume 25 Issue 6 December. Editor: Fernando Gouvêa, Colby College; [email protected] Inside Managing Editor: Carol Baxter, MAA 4 Saunders Mac Lane, 1909-2005 [email protected] By John MacDonald Senior Writer: Harry Waldman, MAA [email protected] 5 Encountering Saunders Mac Lane By David Eisenbud Please address advertising inquiries to: Rebecca Hall [email protected] 8George B. Dantzig 1914–2005 President: Carl C. Cowen By Don Albers First Vice-President: Barbara T. Faires, 11 Convergence: Mathematics, History, and Teaching Second Vice-President: Jean Bee Chan, An Invitation and Call for Papers Secretary: Martha J. Siegel, Associate By Victor Katz Secretary: James J. Tattersall, Treasurer: John W. Kenelly 12 What I Learned From…Project NExT By Dave Perkins Executive Director: Tina H. Straley 14 The Preparation of Mathematics Teachers: A British View Part II Associate Executive Director and Director By Peter Ruane of Publications: Donald J. Albers FOCUS Editorial Board: Rob Bradley; J. 18 So You Want to be a Teacher Kevin Colligan; Sharon Cutler Ross; Joe By Jacqueline Brennon Giles Gallian; Jackie Giles; Maeve McCarthy; Colm 19 U.S.A. Mathematical Olympiad Winners Honored Mulcahy; Peter Renz; Annie Selden; Hortensia Soto-Johnson; Ravi Vakil. 20 Math Youth Days at the Ballpark Letters to the editor should be addressed to By Gene Abrams Fernando Gouvêa, Colby College, Dept. of 22 The Fundamental Theorem of ________________ Mathematics, Waterville, ME 04901, or by email to [email protected]. -
The Adams-Novikov Spectral Sequence and the Homotopy Groups of Spheres
The Adams-Novikov Spectral Sequence and the Homotopy Groups of Spheres Paul Goerss∗ Abstract These are notes for a five lecture series intended to uncover large-scale phenomena in the homotopy groups of spheres using the Adams-Novikov Spectral Sequence. The lectures were given in Strasbourg, May 7–11, 2007. May 21, 2007 Contents 1 The Adams spectral sequence 2 2 Classical calculations 5 3 The Adams-Novikov Spectral Sequence 10 4 Complex oriented homology theories 13 5 The height filtration 21 6 The chromatic decomposition 25 7 Change of rings 29 8 The Morava stabilizer group 33 ∗The author were partially supported by the National Science Foundation (USA). 1 9 Deeper periodic phenomena 37 A note on sources: I have put some references at the end of these notes, but they are nowhere near exhaustive. They do not, for example, capture the role of Jack Morava in developing this vision for stable homotopy theory. Nor somehow, have I been able to find a good way to record the overarching influence of Mike Hopkins on this area since the 1980s. And, although, I’ve mentioned his name a number of times in this text, I also seem to have short-changed Mark Mahowald – who, more than anyone else, has a real and organic feel for the homotopy groups of spheres. I also haven’t been very systematic about where to find certain topics. If I seem a bit short on references, you can be sure I learned it from the absolutely essential reference book by Doug Ravenel [27] – “The Green Book”, which is not green in its current edition. -
Stable Homotopy and the Adams Spectral Sequence
FACULTY OF SCIENCE UNIVERSITY OF COPENHAGEN Master Project in Mathematics Paolo Masulli Stable homotopy and the Adams Spectral Sequence Advisor: Jesper Grodal Handed-in: January 24, 2011 / Revised: March 20, 2011 CONTENTS i Abstract In the first part of the project, we define stable homotopy and construct the category of CW-spectra, which is the appropriate setting for studying it. CW-spectra are particular spectra with properties that resemble CW-complexes. We define the homotopy groups of CW- spectra, which are connected to stable homotopy groups of spaces, and we define homology and cohomology for CW-spectra. Then we construct the Adams spectral sequence, in the setting of the category of CW-spectra. This spectral sequence can be used to get information about the stable homotopy groups of spaces. The last part of the project is devoted to calculations. We show two examples of the use of the Adams sequence, the first one applied to the stable homotopy groups of spheres and the second one to the homotopy of the spectrum ko of the connective real K-theory. Contents Introduction 1 1 Stable homotopy 2 1.1 Generalities . .2 1.2 Stable homotopy groups . .2 2 Spectra 3 2.1 Definition and homotopy groups . .3 2.2 CW-Spectra . .4 2.3 Exact sequences for a cofibration of CW-spectra . 11 2.4 Cohomology for CW-spectra . 13 3 The Adams Spectral Sequence 17 3.1 Exact resolutions . 17 3.2 Constructing the spectral sequence . 18 3.3 The main theorem . 20 4 Calculations 25 4.1 Stable homotopy groups of spheres . -
A Novice's Guide to the Adams-Novikov Spectral Sequence
A NOVICE'S GUIDE TO THE AD~MS-NOVIKOV SPECTRAL SEQUENCE Douglas C. Ravenel University of Washington Seattle, Washington 98195 Ever since its introduction by J. F. Adams [8] in 1958, the spectral sequence that bears his name has been a source of fascination to homotopy theorists. By glancing at a table of its structure in low dimensions (such have been published in [7], [i0] and [27]; one can also be found in ~2) one sees not only the values of but the structural relations among the corres- ponding stable homotopy groups of spheres. It cannot be denied that the determination of the latter is one of the central problems of algebraic topology. It is equally clear that the Adams spectral sequence and its variants provide us with a very powerful systematic approach to this question. The Adams spectral sequence in its original form is a device for converting algebraic information coming from the Steenrod algebra into geometric information, namely the structure of the stable homotopy groups of spheres. In 1967 Novikov [44] introduced an analogous spectral sequence (formally known now as the Adams- Novikov spectral sequence, and informally as simply the Novikov spectral sequence) whose input is a~ebraic information coming from MU MU, the algebra of cohomology operations of complex cobordism theory (regarded as a generalized cohomology theory (see [2])). This new spectral sequence is formally similar to the classical one. In both cases, the E2-term is computable (at least in principle) by purely algebraic methods and the E -term is the bigraded object associated to some filtration of the stable homo- topy groups of spheres (the filtrations are not the same for the *Partially supported by NSF 405 two spectral sequences>.