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Topic: Equivariant


  
  Equivariant - Wikipedia, the free encyclopedia
In mathematics, an equivariant map is a function between two sets that commutes with the action of a group.
Equivariant maps are homomorphisms in the category of G-sets (for a fixed G).
Equivariant maps can be generalized to arbitrary categories in a straightforward manner.
en.wikipedia.org /wiki/Intertwiner   (540 words)

  
 Fields Institute - Workshop on The Equivariant Tamagawa Number Conjecture
This Equivariant Tamagawa Number Conjecture (ETNC) encompasses the refinements of various classical conjectures, e.g.
In preparation for the workshop D. Benois will give two introductory talks on the Equivariant Tamagawa Number Conjecture on Thursday Sept. 18 and Wednesday Sept. 24 at 15:30 in HH 312.
M. Flach will give a colloquium talk for a general audience "The Equivariant Tamagawa Number Conjecture" on Friday, Sept. 26, 15:30 in HH 217.
www.fields.utoronto.ca /programs/scientific/03-04/tamagawa   (302 words)

  
 Amazon.com Books: Equivariant   (Site not responding. Last check: 2007-11-01)
Equivariant Cohomology and Localization of Path Integrals (Lecture Notes in Physics) by Richard J. abo (Hardcover - Mar 15, 2000)
Equivariant Homotopy and Cohomology Theory: Dedicated to the Memory of Robert J. Piacenza (Cbms Regional Conference Series in Mathematics) by J. Peter May, M. Cole, G. Comezana, and S. Costenoble (Paperback - Oct 1996)
The Ro(G)-Graded Equivariant Ordinary Homology of G-Cell Complexes With Even-Dimensional Cells for G=Z/P (Memoirs of the American Mathematical Society) by Kevin K. Ferland and L. Lewis (Hardcover - Jan 2004)
www.amazon.com /s?ie=UTF8&keywords=Equivariant&tag=httpexplaguid-20&index=books&link_code=qs&page=1   (455 words)

  
 OUP: UK General Catalogue
The works begins with a development of the equivariant algebraic topology of spaces culminating in a discussion of the Sullivan conjecture that emphasizes its relationship with classical Smith theory.
The basic machinery that is needed to make serious use of equivariant stable homotopy theory is presented next, along with discussions of the Segal conjecture and generalized Tate cohomology.
Emphasis is placed on equivariant complex cobordism, and related results on that topic are presented in detail.
www.oup.com /uk/catalogue/?ci=9780821803196   (339 words)

  
 Research
The Witten genus and equivariant elliptic cohomology Maria Basterra and I construct a Thom class in complex equivariant elliptic cohomology extending the equivariant Witten genus.
Discrete torsion for the supersingular orbifold sigma genus The first purpose of this paper is to examine the relationship between equivariant elliptic genera and orbifold elliptic genera.
In the case of a finite cyclic orbifold group, we use the characteristic series for the two-variable genus to define an analytic equivariant genus in Grojnowski's equivariant elliptic cohomology, and we show that this gives precisely the orbifold two-variable genus.
www.math.uiuc.edu /~mando/node1.html   (728 words)

  
 Equivariant Adaptive Source Separation - Cardoso, Laheld (ResearchIndex)   (Site not responding. Last check: 2007-11-01)
This paper introduces a class of adaptive algorithms for source separation which implements an adaptive version of equivariant estimation and is henceforth called EASI (Equivariant Adaptive Separation via Independence).
The EASI algorithms are based on the idea of serial updating: this specific form of matrix updates systematically yields algorithms with a simple...
J.-F. Cardoso and B. Laheld, "Equivariant adaptive source separation", IEEE Trans.
citeseer.ist.psu.edu /cardoso96equivariant.html   (662 words)

  
 Gröbner Bases, Invariant Theory and Equivariant Dynamics (ResearchIndex)   (Site not responding. Last check: 2007-11-01)
The question of generic bifurcation equations requires the knowledge of fundamental invariants and equivariants.
10 Zeros of equivariant vector fields: Algorithms for an invari..
7 equivariants and algorithms (context) - Gatermann - 1996
citeseer.ifi.unizh.ch /6712.html   (686 words)

  
 Problems on equivariant homotopy theory   (Site not responding. Last check: 2007-11-01)
Currently we know how to do equivariant stable homotopy theory only when the structure group G is compact Lie.
He points out that a lot of the crucial problems in mathematics concern infinite discrete groups, like the Novikov conjecture, and so it may be of value to figure out this problem.
As a simpler model of the equivariant stable homotopy category, construct a derived category of Mackey functors over a Green functor, and analyze its properties.
claude.math.wesleyan.edu /~mhovey/problems/equivariant.html   (316 words)

  
 Mathematics of Computation
Abstract: We consider a conjecture of Bley and Burns which relates the epsilon constant of the equivariant Artin
W. Bley, D. Burns, Equivariant epsilon constants, discriminants and étale cohomology, preprint 2001, to appear in Proc.
Keywords: Equivariant Tamagawa number conjecture, equivariant epsilon constants, dihedral extensions
www.ams.org /mcom/2004-73-246/S0025-5718-03-01605-3/home.html   (349 words)

  
 Equivariant algebraic vs. topological -homology Atiyah-Segal-style, R. W. Thomason
Equivariant algebraic vs. topological -homology Atiyah-Segal-style, R. Thomason
[AS] M. Atiyah and G. Segal, Equivariant $K$-theory and completion, J. Differential Geometry 3 (1969), 1–18.
[Br] Glen E. Bredon, Equivariant cohomology theories, Lecture Notes in Mathematics, vol.
projecteuclid.org /Dienst/UI/1.0/Summarize/euclid.dmj/1077306718   (1041 words)

  
 hofprints - Equivariant orientation theory
Constenoble, Steven R. and May, J. Peter and Waner, Stefan (2001) Equivariant orientation theory.
We give a long overdue theory of orientations of G-vector bundles, topological G-bundles, and spherical G-fibrations, where G is a compact Lie group.
The notion of equivariant orientability is clear and unambiguous, but it is surprisingly difficult to obtain a satisfactory notion of an equivariant orientation such that every orientable G-vector bundle admits an orientation.
hofprints.hofstra.edu /27   (101 words)

  
 [No title]
The homotopy category associated to this model structure is equivalent to the stable category.
http://hopf.math.purdue.edu/cgi-bin/generate?/pub/Rosu/ioanidellc Title: Equivariant Elliptic Cohomology and Rigidity Author: Ioanid Rosu, ioanid@math.mit.edu Equivariant elliptic cohomology with complex coefficients was defined axiomatically by Ginzburg, Kapranov and Vasserot and constructed by Grojnowski.
http://hopf.math.purdue.edu/cgi-bin/generate?/pub/Rosu-Knutson/ioanidkt Title: Equivariant K-theory and Equivariant Cohomology Author: Ioanid Rosu, with an appendix by Allen Knutson and Ioanid Rosu ioanid@math.mit.edu allenk@math.berkeley.edu For T an abelian compact Lie group, we give a description of T-equivariant K-theory with complex coefficients in terms of equivariant cohomology.
www.lehigh.edu /~dmd1/h1214   (712 words)

  
 Auslander-Buchweitz Approximations of Equivariant Modules - Cambridge University Press
This book focuses on homological aspects of equivariant modules.
It presents a new homological approximation theory in the category of equivariant modules, unifying the Cohen-Macaulay approximations in commutative ring theory and Ringel's theory of delta-good approximations for quasi-hereditary algebras and reductive groups.
The book provides a detailed introduction to homological algebra, commutative ring theory and homological theory of comodules of co-algebras over an arbitrary base.
www.cambridge.org /catalogue/catalogue.asp?ISBN=0521796962   (214 words)

  
 hofprints - Equivariant covering spaces and homotopy covering spaces
For nonconnected spaces we consider instead actions of the fundamental groupoid.
In this paper we generalize to the equivariant case, showing that we can use either of two possible notions of action of the equivariant fundamental groupoid.
We consider both equivariant covering spaces and the more general notion of equivariant homotopy covering spaces.
hofprints.hofstra.edu /29   (115 words)

  
 Ma: Submersions and equivariant Quillen metrics
In this paper, we calculate the behaviour of the equivariant Quillen metric by submersions.
We thus extend a formula of Berthomieu-Bismut to the equivariant case.
[B4] J.-M. Equivariant short exact sequences of vector bundles and their analytic torsion forms, Comp.
www.numdam.org /numdam-bin/item?id=AIF_2000__50_5_1539_0   (436 words)

  
 AMCA: Equivariant strong homology (G-Ssh Homology) by Corina Mohorianu   (Site not responding. Last check: 2007-11-01)
AMCA: Equivariant strong homology (G-Ssh Homology) by Corina Mohorianu
Finally we proof homotopic invariance of equivariant strong homology and we deduce some long sequences for equivariant strong homology.
The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Mathematical Conference Abstracts.
at.yorku.ca /c/a/e/x/21.htm   (175 words)

  
 Amazon.com: Methods in Equivariant Bifurcations and Dynamical Systems (Advanced Series in Nonlinear Dynamics): Books: ...   (Site not responding. Last check: 2007-11-01)
Amazon.com: Methods in Equivariant Bifurcations and Dynamical Systems (Advanced Series in Nonlinear Dynamics): Books: Pascal Chossat,Reiner Lauterbach
Methods in Equivariant Bifurcations and Dynamical Systems (Advanced Series in Nonlinear Dynamics) (Hardcover)
SIPs: equivariant branching lemma, homoclinic cycle, forced symmetry breaking, relative periodic orbits, isotropy types (more)
www.amazon.com /Equivariant-Bifurcations-Dynamical-Nonlinear-Dynamics/dp/9810238282   (510 words)

  
 Auslander-Buchweitz Approximations of Equivariant Modules - Cambridge University Press
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Auslander-Buchweitz Approximations of Equivariant Modules at Cambridge University Press website
Thought you'd be interested in this title from Cambridge University Press.
www.cambridge.org /catalogue/email.asp?isbn=0521796962   (120 words)

  
 G L NABER
SOME LECTURE NOTES: Fiber Bundles in Mathematics and Physics
LECTURES 2and3: EQUIVARIANT COHOMOLOGY AND THE WITTEN LAGRANGIAN
Addendum 6: The Euler Class of TS Addendum 7: Universal Thom Form for R
www.pages.drexel.edu /~gln22   (64 words)

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