Lie Groups and Ergodic Theory

Total Page:16

File Type:pdf, Size:1020Kb

Lie Groups and Ergodic Theory Citations From References: 0 Previous Up Next Book From Reviews: 0 MR1699355 (2000b:00011) 00B25 (22-06 28-06) FLie groups and ergodic theory. Proceedings of the International Colloquium held in Mumbai, January 4–12, 1996. Edited by S. G. Dani. Tata Institute of Fundamental Research Studies in Mathematics, 14. Published for the Tata Institute of Fundamental Research, Bombay; by Narosa Publishing House, New Delhi, 1998. viii+386 pp. $32.00. ISBN 81-7319-235-9 Contents: Martine Babillot and Franc¸ois Ledrappier, Geodesic paths and horocycle flow on abelian covers (1–32); J. R. Choksi and M. G. Nadkarni, On the question of transformations with sim- ple Lebesgue spectrum (33–57); S. G. Dani and C. R. E. Raja, Asymptotics of measures under group automorphisms and an application to factor sets (59–73); Alex Eskin and Benson Farb, Quasi-flats in H2 × H2 (75–103); Hillel Furstenberg [Harry Furstenberg], Stiffness of group ac- tions (105–117); Dmitry Y.Kleinbock, Bounded orbits conjecture and Diophantine approximation (119–130); Alexander Lubotzky and Robert J. Zimmer, A canonical arithmetic quotient for sim- ple Lie group actions (131–142); Shahar Mozes, On the congruence subgroup problem for tree lattices (143–149); Hee Oh, Arithmetic properties of some Zariski dense discrete subgroups (151– 165); Marina Ratner, On the p-adic and S-arithmetic generalizations of Raghunathan’s conjectures (167–202); Klaus Schmidt [Klaus Schmidt1], On the cohomology of algebraic Zd-actions with values in compact Lie groups (203–228); Nimish A. Shah, Invariant measures and orbit closures on homogeneous spaces for actions of subgroups generated by unipotent elements (229–271); Yehuda Shalom, Random ergodic theorems, invariant means and unitary representation (273– 314); G. A. Soifer, Structure of infinite index maximal subgroups of SLn(Z) (315–324); A. N. Starkov, Dynamics of non-unipotent homogeneous flows (325–343); William A. Veech, Geomet- ric realizations of hyperelliptic curves. II (345–365); Dave Witte [David Riley Witte], Cocycle superrigidity for ergodic actions of non-semisimple Lie groups (367–386). {The papers are being reviewed individually.} c Copyright American Mathematical Society 2000, 2010.
Recommended publications
  • Short CV For: Alexander Lubotzky
    Short CV for: Alexander Lubotzky Personal: • born 28/6/56 in Israel. • Married to Yardenna Lubotzky (+ six children) Studies: • B. Sc., Mathematics, Bar-Ilan University, 1975. • Ph.D., Mathematics, Bar-Ilan University, 1979. (Supervisor: H. Fussten- berg, Thesis: Profinite groups and the congruence subgroup problem.) Employment: • 1982 - current: Institute of Mathematics, Hebrew University of Jerusalem; Professor - Holding the Maurice and Clara Weil Chair in Mathematics • 1999-current: Adjunct Professor at Yale University • Academic Year 2005-2006: Leading a year long research program at the Institute for Advanced Study in Princeton on \Lie Groups, Repre- sentations and Discrete Mathematics." Previous Employment: • Bar-Ilan University, 1976-1982 • Israeli Defense Forces, 1977-1982 • Member of the Israeli Parliament (Knesset), 1996-1999 Visiting Positions: • Yale University (several times for semesters or years) • Stanford University (84/5) • University of Chicago (92/3) • Columbia University (Elenberg visiting Professor Fall 2000) 1 • Institute for Advanced Study, Princeton (2005/6) Main prizes and Academic Honors: • Elected as Foreign Honorary member of the American Academy of Arts and Sciences • Ferran Sunyer i Balaguer Prize twice: 1993 for the book: \Discrete Groups, Expanding Groups and Invariant Measures", Prog. in math 125, Birkhauser 1994, and in 2002 joint with Professor Dan Segal from Oxford for the book \Subgroup Growth", Prog. in Math. 212, Birkhauser 2003. • The Rothschild Prize 2002. • The Erdos Prize in 1991. Editorial work: • Israel Journal of Mathematics (1990-now) • Journal of Algebra (1990-2005) • GAFA (1990-2000) • European Journal of Combinatorics • Geometric Dedicata • Journal of the Glasgow Mathematical Scientists Books and papers: • Author of 3 books and over 90 papers.
    [Show full text]
  • A Group Theoretic Characterization of Linear Groups
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector JOURNAL OF ALGEBRA 113, 207-214 (1988) A Group Theoretic Characterization of Linear Groups ALEXANDER LUBOTZKY Institute qf Mathematics, Hebrew University, Jerusalem, Israel 91904 Communicated by Jacques Tits Received May 12, 1986 Let r be a group. When is f linear? This is an old problem. The first to study this question systematically was Malcev in 1940 [M], who essen- tially reduced the problem to finitely generated groups. (Note that a finitely generated group is linear over some field of characteristic zero if and only if it can be embedded in CL,(C) for some n.) Very little progress was made since that paper of Malcev, although, as linear groups are a quite special type of group, many necessary conditions were obtained, e.g., r should be residually finite and even virtually residually-p for almost all primes p, f should be virtually torsion free, and if not solvable by finite it has a free non-abelian subgroup, etc. (cf. [Z]). Of course, none of these properties characterizes the finitely generated linear groups over @. In this paper we give such a characterization using the congruence structure of r. First some definitions: For a group H, d(H) denotes the minimal number of generators for H. DEFINITION. Let p be a prime and c an integer. A p-congruence structure (with a bound c) for a group r is a descending chain of finite index normal subgroups of r = N, 2 N, 2 N, z .
    [Show full text]
  • Counting Arithmetic Lattices and Surfaces
    ANNALS OF MATHEMATICS Counting arithmetic lattices and surfaces By Mikhail Belolipetsky, Tsachik Gelander, Alexander Lubotzky, and Aner Shalev SECOND SERIES, VOL. 172, NO. 3 November, 2010 anmaah Annals of Mathematics, 172 (2010), 2197–2221 Counting arithmetic lattices and surfaces By MIKHAIL BELOLIPETSKY, TSACHIK GELANDER, ALEXANDER LUBOTZKY, and ANER SHALEV Abstract We give estimates on the number ALH .x/ of conjugacy classes of arithmetic lattices of covolume at most x in a simple Lie group H . In particular, we obtain a first concrete estimate on the number of arithmetic 3-manifolds of volume at most x. Our main result is for the classical case H PSL.2; R/ where we show D that log AL .x/ 1 lim H : x x log x D 2 !1 The proofs use several different techniques: geometric (bounding the number of generators of as a function of its covolume), number theoretic (bounding the number of maximal such ) and sharp estimates on the character values of the symmetric groups (to bound the subgroup growth of ). 1. Introduction Let H be a noncompact simple Lie group with a fixed Haar measure .A discrete subgroup of H is called a lattice if . H / < . A classical theorem of n 1 Wang[Wan72] asserts that if H is not locally isomorphic to PSL2.R/ or PSL2.C/, then for every 0 < x R the number LH .x/ of conjugacy classes of lattices in H of 2 covolume at most x is finite. This result was greatly extended by Borel and Prasad [BP89]. In recent years there has been an attempt to quantify Wang’s theorem and to give some estimates on LH .x/ (see[BGLM02],[Gel04],[GLNP04],[Bel07] and[BL]).
    [Show full text]
  • IMU Secretary An: [email protected]; CC: Betreff: IMU EC CL 05/07: Vote on ICMI Terms of Reference Change Datum: Mittwoch, 24
    Appendix 10.1.1 Von: IMU Secretary An: [email protected]; CC: Betreff: IMU EC CL 05/07: vote on ICMI terms of reference change Datum: Mittwoch, 24. Januar 2007 11:42:40 Anlagen: To the IMU 2007-2010 Executive Committee Dear colleagues, We are currently experimenting with a groupware system that may help us organize the files that every EC member should know and improve the voting processes. Wolfgang Dalitz has checked the open source groupware systems and selected one that we want to try. It is more complicated than we thought and does have some deficiencies, but we see no freeware that is better. Here is our test run with a vote on a change of the ICMI terms of reference. To get to our voting system click on http://www.mathunion.org/ec-only/ To log in, you have to type your last name in the following version: ball, baouendi, deleon, groetschel, lovasz, ma, piene, procesi, vassiliev, viana Right now, everybody has the same password: pw123 You will immediately get to the summary page which contains an item "New Polls". The question to vote on is: Vote-070124: Change of ICMI terms of reference, #3, see Files->Voting->Vote- 070124 for full information and you are supposed to agree, disagree or abstain by clicking on the corresponding button. Full information about the contents of the vote is documented in the directory Voting (click on the +) where you will find a file Vote-070124.txt (click on the "txt icon" to see the contents of the file). The file is also enclosed below for your information.
    [Show full text]
  • Graduate School of Arts and Sciences 2013–2014
    BULLETIN OF YALE UNIVERSITY BULLETIN OF YALE BULLETIN OF YALE UNIVERSITY Periodicals postage paid New Haven ct 06520-8227 New Haven, Connecticut Graduate School of Arts and Sciences Programs and Policies 2013–2014 Graduate School ofGraduate Arts and Sciences 2013–2014 BULLETIN OF YALE UNIVERSITY Series 109 Number 5 July 15, 2013 BULLETIN OF YALE UNIVERSITY Series 109 Number 5 July 15, 2013 (USPS 078-500) The University is committed to basing judgments concerning the admission, education, is published seventeen times a year (one time in May and October; three times in June and employment of individuals upon their qualifications and abilities and a∞rmatively and September; four times in July; five times in August) by Yale University, 2 Whitney seeks to attract to its faculty, sta≠, and student body qualified persons of diverse back- Avenue, New Haven CT 0651o. Periodicals postage paid at New Haven, Connecticut. grounds. In accordance with this policy and as delineated by federal and Connecticut law, Yale does not discriminate in admissions, educational programs, or employment against Postmaster: Send address changes to Bulletin of Yale University, any individual on account of that individual’s sex, race, color, religion, age, disability, or PO Box 208227, New Haven CT 06520-8227 national or ethnic origin; nor does Yale discriminate on the basis of sexual orientation or gender identity or expression. Managing Editor: Kimberly M. Go≠-Crews University policy is committed to a∞rmative action under law in employment of Editor: Lesley K. Baier women, minority group members, individuals with disabilities, and covered veterans. PO Box 208230, New Haven CT 06520-8230 Inquiries concerning these policies may be referred to the Director of the O∞ce for Equal Opportunity Programs, 221 Whitney Avenue, 203.432.0849.
    [Show full text]
  • HIGH DIMENSIONAL EXPANDERS 0. Introduction Expander Graphs Are
    HIGH DIMENSIONAL EXPANDERS ALEXANDER LUBOTZKY Abstract. Expander graphs have been, during the last five decades, the subject of a most fruitful interaction between pure mathematics and computer science, with influence and applications going both ways (cf. [55], [37], [56] and the references therein). In the last decade, a theory of “high dimensional expanders” has be- gun to emerge. The goal of the current paper is to describe some paths of this new area of study. 0. Introduction Expander graphs are graphs which are, at the same time, sparse and highly connected. These two seemingly contradicting properties are what makes this theory non trivial and useful. The existence of such graphs is not a completely trivial issue, but by now there are many methods to show this: random methods, Kazhdan property (T ) from representation theory of semisimple Lie groups, Ramanujan conjecture (as proved by Deligne and Drinfeld) from the theory of automorphic forms, the elementary Zig-Zag method and “interlacing polynomials”. The definition of expander graphs can be expressed in several dif- ferent equivalent ways (combinatorial, spectral gap etc. - see [55], [40]). When one comes to develop a high dimensional theory; i.e. a theory of finite simplicial complexes of dimension d ≥ 2, which resem- bles that of expander graphs in dimension d = 1, the generalizations of the different properties are (usually) not equivalent. One is ledto notions like: coboundary expanders, cosystolic expanders, topological expanders, geometric expanders, spectral expanders etc. each of which has its importance and applications. In §1, we recall very briefly several of the equivalent definitions of expander graphs (ignoring completely the wealth of their applications).
    [Show full text]
  • ELEMENTARY EQUIVALENCE of PROFINITE GROUPS by Moshe
    ELEMENTARY EQUIVALENCE OF PROFINITE GROUPS by Moshe Jarden, Tel Aviv University∗ and Alexander Lubotzky, The Hebrew University of Jerusalem∗∗ Dedicated to Dan Segal on the occasion of his 60th birthday Abstract. There are many examples of non-isomorphic pairs of finitely generated abstract groups that are elementarily equivalent. We show that the situation in the category of profinite groups is different: If two finitely generated profinite groups are elementarily equivalent (as abstract groups), then they are isomorphic. The proof ap- plies a result of Nikolov and Segal which in turn relies on the classification of the finite simple groups. Our result does not hold any more if the profinite groups are not finitely generated. We give concrete examples of non-isomorphic profinite groups which are elementarily equivalent. MR Classification: 12E30 Directory: \Jarden\Diary\JL 3 June, 2008 * Supported by the Minkowski Center for Geometry at Tel Aviv University, established by the Minerva Foundation. ** Supported by the ISF and the Landau Center for Analysis at the Hebrew University of Jerusalem. Introduction Let L(group) be the first order language of group theory. One says that groups G and H are elementarily equivalent and writes G ≡ H if each sentence of L(group) which holds in one of these groups holds also the other one. There are many examples of pairs of elementarily equivalent groups which are not isomorphic. For example, the group Z is elementarily equivalent to every nonprincipal ultrapower of it although it is not isomorphic to it. Less trivial examples are given by the following result: If G and H are groups satisfying G × Z =∼ H × Z, then G ≡ H [Oge91] (see [Hir69] for an example of non-isomorphic groups G and H satisfying G × Z =∼ H × Z.) More generally, Nies points out in [Nie03, p.
    [Show full text]
  • A Biography of Leon Ehrenpreis
    Developments in Mathematics VOLUME 28 Series Editors: Krishnaswami Alladi, University of Florida Hershel M. Farkas, Hebrew University of Jerusalem Robert Guralnick, University of Southern California For further volumes: http://www.springer.com/series/5834 Hershel M. Farkas • Robert C. Gunning Marvin I. Knopp • B.A. Taylor Editors From Fourier Analysis and Number Theory to Radon Transforms and Geometry In Memory of Leon Ehrenpreis 123 Editors Hershel M. Farkas Robert C. Gunning Einstein Institute of Mathematics Department of Mathematics The Hebrew University of Jerusalem Princeton University Givat Ram, Jerusalem Princeton, NJ Israel USA Marvin I. Knopp B.A. Taylor Department of Mathematics Department of Mathematics Temple University University of Michigan Philadelphia, PA Ann Arbor, MI USA USA ISSN 1389-2177 ISBN 978-1-4614-4074-1 ISBN 978-1-4614-4075-8 (eBook) DOI 10.1007/978-1-4614-4075-8 Springer New York Heidelberg Dordrecht London Library of Congress Control Number: 2012944371 © Springer Science+Business Media New York 2013 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. Exempted from this legal reservation are brief excerpts in connection with reviews or scholarly analysis or material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work.
    [Show full text]
  • Read Ebook {PDF EPUB} from the Wilderness and Lebanon an Israeli Soldier's Story of War and Recovery by Asael Lubotzky Asael Lubotzky
    Read Ebook {PDF EPUB} From the Wilderness and Lebanon An Israeli Soldier's Story of War and Recovery by Asael Lubotzky Asael Lubotzky. ,est un ancien militaire israélien blessé au combat, devenu médecin ( « עשהאל לובוצקי » : Asaël Lubotzky , ( Assaël Loubotzky , en hébreu romancier et biologiste. Sommaire. Biographie. Asael Lubotzky est né et a grandi à Efrat, puis a étudié à la Yechiva Hesder à Ma'aleh Adumim. Il été accepté dans l'unité d'élite de la Marine israélienne Shayetet 13, mais a préféré s'enrôler dans le 51 e bataillon de la Brigade Golani. Il suivit une formation militaire et fut choisi comme cadet exceptionnel de la compagnie. Après avoir terminé l'école des officiers, Lubotzky est nommé commandant d'un peloton de la brigade Golani [ 1 ] . Il a mené sa section dans les combats à Gaza et, au cours de la Seconde guerre du Liban, a pris part à de nombreux combats au cours desquels plusieurs de ses camarades ont été tués et blessés, jusqu'à ce que lui aussi soit gravement blessé à la Bataille de Bint Jbeil et soit devenu handicapé [ 2 ] . Après sa rééducation, il a commencé à étudier la médecine à la faculté de médecine de l’Université hébraïque Hadassah [ 3 ] . Il s'est spécialisé en pédiatrie à l’hôpital Shaare Zedek de Jérusalem et a terminé son doctorat à l’Université hébraïque. Les recherches de Lubotzky sont axées sur les liens entre l’ADN et le cancer [ 4 ] . Le premier livre de Lubotzky, From the Wilderness and Lebanon [ 5 ] , décrivant ses expériences de guerre et sa réhabilitation, a été publié en 2008 d'abord en feuilleton dans le journal Yedioth Ahronoth , est devenu un best-seller [ 6 ] , a suscité des éloges de la part des critiques et a été traduit en anglais [ 7 ] .
    [Show full text]
  • The West Math Collection
    Anaheim Meetings Oanuary 9 -13) - Page 15 Notices of the American Mathematical Society January 1985, Issue 239 Volume 32, Number 1, Pages 1-144 Providence, Rhode Island USA ISSN 0002-9920 Calendar of AMS Meetings THIS CALENDAR lists all meetings which have been approved by the Council prior to the date this issue of the Notices was sent to the press. The summer and annual meetings are joint meetings of the Mathematical Association of America and the American Mathematical Society. The meeting dates which fall rather far in the future are subject to change; this is particularly true of meetings to which no numbers have yet been assigned. Programs of the meetings will appear in the issues indicated below. First and supplementary announcements of the meetings will have appeared in earlier issues. ABSTRACTS OF PAPERS presented at a meeting of the Society are published in the journal Abstracts of papers presented to the American Mathematical Society in the issue corresponding to that of the Notices which contains the program of the meeting. Abstracts should be submitted on special forms which are available in many departments of mathematics and from the office of the Society. Abstracts must be accompanied by the Sl5 processing charge. Abstracts of papers to be presented at the meeting must be received at the headquarters of the Society in Providence. Rhode Island. on or before the deadline given below for the meeting. Note that the deadline for abstracts for consideration for presentation at special sessions is usually three weeks earlier than that specified below. For additional information consult the meeting announcements and the list of organizers of special sessions.
    [Show full text]
  • The 2002 Notices Index, Volume 49, Number 11
    The 2002 Notices Index Index Section Page Number Index Section Page Number The AMS 1470 Memorial Articles 1480 Announcements 1471 New Publications Offered by the AMS 1480 Authors of Articles 1473 Officers and Committee Members 1480 Deaths of Members of the Society 1474 Opinion 1480 Education 1475 Opportunities 1480 Feature Articles 1475 Prizes and Awards 1481 Letters to the Editor 1476 The Profession 1483 Mathematicians 1476 Reference and Book List 1483 Mathematics Articles 1479 Reviews 1483 Mathematics History 1480 Surveys 1484 Meetings Information 1480 Tables of Contents 1484 About the Cover AMS Email Support for Frequently Asked Questions, 1275 38, 192, 317, 429, 565, 646, 790, 904, 1054, 1274, 1371 AMS Ethical Guidelines, 706 AMS Menger Prizes at the 2002 ISEF, 940 The AMS AMS Officers and Committee Members, 1107 2000 Mathematics Subject Classification, 266, 350, 704, AMS Participates in CNSF Exhibition, 826 984, 1120, 1284 AMS Participates in Planning for 2004 NAEP, 489 2001 Election Results, 259 AMS Scholarships for “Math in Moscow”, 486 2001 Annual Survey of the Mathematical Sciences (First AMS Short Courses, 1162 Report), 217 AMS Sponsors NExT Fellows, 1403 2001 Annual Survey of the Mathematical Sciences (Second AMS Standard Cover Sheet, 264, 348, 702, 982, 1118, 1282, Report), 803 1410 2001 Annual Survey of the Mathematical Sciences (Third Annual AMS Bookshelf Sale, 1298 Report), 928 Annual AMS Warehouse Sale, 1136 2002 AMS Elections (Call for Suggestions), 260 Applications, Nominations Sought for MR Executive Edi- 2002 AMS Election (Nominations by Petition), 51, 261 tor Position, 1414 2002 Arnold Ross Lecture, 825 Babbitt Retires as AMS Publisher, 489 2002 Election of Officers (Special Section), 967 Call for Applications for AMS Epsilon Fund, 1098 2002 JPBM Communications Award, 1267 Call for Nominations for 2003 George David Birkhoff Prize, 2002–2003 AMS Centennial Fellowships Awarded, 686 Frank Nelson Cole Prize in Algebra, Levi L.
    [Show full text]
  • The Rise of the Zionist Right: Polish Jews and the Betar Youth Movement, 1922-1935
    THE RISE OF THE ZIONIST RIGHT: POLISH JEWS AND THE BETAR YOUTH MOVEMENT, 1922-1935 A DISSERTATION SUBMITTED TO THE DEPARTMENT OF HISTORY AND THE COMMITTEE ON GRADUATE STUDIES OF STANFORD UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Daniel K. Heller August 2012 © 2012 by Daniel Kupfert Heller. All Rights Reserved. Re-distributed by Stanford University under license with the author. This work is licensed under a Creative Commons Attribution- Noncommercial 3.0 United States License. http://creativecommons.org/licenses/by-nc/3.0/us/ This dissertation is online at: http://purl.stanford.edu/bd752jg9919 ii I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Steven Zipperstein, Primary Adviser I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Norman Naimark I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Aron Rodrigue Approved for the Stanford University Committee on Graduate Studies. Patricia J. Gumport, Vice Provost Graduate Education This signature page was generated electronically upon submission of this dissertation in electronic format. An original signed hard copy of the signature page is on file in University Archives. iii ABSTRACT This dissertation charts the social, cultural and intellectual development of the Zionist Right through an examination of the Brit Yosef Trumpeldor youth movement, known eventually by its Hebrew acronym, Betar.
    [Show full text]