Results 51 to 60 of about 209,957 (232)
Conformally Equivariant Quantization - a Complete Classification
Symmetry, Integrability and Geometry: Methods and Applications, 2012 Conformally equivariant quantization is a peculiar map between symbols of real weight δ and differential operators acting on tensor densities, whose real weights are designed by λ and λ+δ.
Jean-Philippe Michel
doaj +1 more source
A tight colored Tverberg theorem for maps to manifolds (extended abstract) [PDF]
Discrete Mathematics & Theoretical Computer Science, 2011 Any continuous map of an $N$-dimensional simplex $Δ _N$ with colored vertices to a $d$-dimensional manifold $M$ must map $r$ points from disjoint rainbow faces of $Δ _N$ to the same point in $M$, assuming that $N≥(r-1)(d+1)$, no $r$ vertices of $Δ _N ...
Pavle V. M. Blagojević +2 more
doaj +1 more source
Equivariant coarse homotopy theory and coarse algebraic $\boldsymbol{K}$-homology [PDF]
K-theory in Algebra, Analysis and Topology, Contemp. Math. 749
(2020), 13-104, 2017 We study equivariant coarse homology theories through an axiomatic framework. To this end we introduce the category of equivariant bornological coarse spaces and construct the universal equivariant coarse homology theory with values in the category of equivariant coarse motivic spectra.
arxiv +1 more source
Publications of the Research Institute for Mathematical Sciences, 1988 This paper contains a study of the characterization of the equivariant phantom maps by means of the equivariant localization and the equivariant completion. The equivariant integral approximation and the equivariant Miller-Zabrodsky theorem will be used to describe the homotopy set of the equivariant phantom maps by the equivariant cohomology groups.
Yoshimi Shitanda, Nobuyuki Oda
openaire +3 more sources
Infinite flags and Schubert polynomials
Forum of Mathematics, SigmaWe study Schubert polynomials using geometry of infinite-dimensional flag varieties and degeneracy loci. Applications include Graham-positivity of coefficients appearing in equivariant coproduct formulas and expansions of back-stable and enriched ...
David Anderson
doaj +1 more source
Various notions of amenability for not necessarily locally compact groupoids [PDF]
Surveys in Mathematics and its Applications, 2014 We start with a groupoid G endowed with a family W of subsets mimicking the properties of a neighborhood basis of the unit space (of a topological groupoid with paracompact unit space).
Mădălina Roxana Buneci
doaj
Equivariant Nielsen invariants for discrete groups
, 2006 For discrete groups G, we introduce equivariant Nielsen invariants. They are equivariant analogs of the Nielsen number and give lower bounds for the number of fixed point orbits in the G-homotopy class of an equivariant endomorphism f:X->X.
Weber, Julia
core +2 more sources
On Weyl group equivariant maps [PDF]
Proceedings of the American Mathematical Society, 2006 We prove an equivariant analogue of Chevalley’s isomorphism theorem for polynomial, C ∞ C^{\infty } or C ω C^{\omega } maps.
Koranyi, A, Szőke, R
openaire +2 more sources
An Introduction to Higgs Bundles via Harmonic Maps [PDF]
SIGMA 15 (2019), 035, 30 pages, 2018 This survey studies equivariant harmonic maps arising from Higgs bundles. We explain the non-abelian Hodge correspondence and focus on the role of equivariant harmonic maps in the correspondence. With the preparation, we review current progress towards some open problems in the study of equivariant harmonic maps.
arxiv +1 more source
Equivariant Symplectic Geometry of Gauge Fixing in Yang-Mills Theory [PDF]
, 2007 The Faddeev-Popov gauge fixing in Yang-Mills theory is interpreted as equivariant localization. It is shown that the Faddeev-Popov procedure amounts to a construction of a symplectic manifold with a Hamiltonian group action.
Beasley C. +6 more
core +4 more sources