Results 41 to 50 of about 45,480 (208)

Supergeometry in equivariant cohomology [PDF]

open access: yes, 2008
7 pages, to be published in the memorial volume, dedicated to V.I ...
openaire   +2 more sources

Crystallographic interacting topological phases and equivariant cohomology: to assume or not to assume

open access: yesJournal of High Energy Physics, 2021
For symmorphic crystalline interacting gapped systems we derive a classification under adiabatic evolution. This classification is complete for non-degenerate ground states.
Daniel Sheinbaum, Omar Antolín Camarena
doaj   +1 more source

Applications of equivariant cohomology [PDF]

open access: yes, 2007
We will discuss the equivariant cohomology of a manifold endowed with the action of a Lie group. Localization formulae for equivariant integrals are explained by a vanishing theorem for equivariant cohomology with generalized coefficients. We then give applications to integration of characteristic classes on symplectic quotients and to indices of ...
openaire   +2 more sources

Equivariant Riemann-Roch theorems for curves over perfect fields

open access: yes, 2008
We prove an equivariant Riemann-Roch formula for divisors on algebraic curves over perfect fields. By reduction to the known case of curves over algebraically closed fields, we first show a preliminary formula with coefficients in Q.
Koeck, Bernhard   +3 more
core   +1 more source

Infinite flags and Schubert polynomials

open access: yesForum of Mathematics, Sigma
We 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

Pattern-equivariant functions and cohomology [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2003
8 pages including 2 ...
openaire   +2 more sources

Local multiplicativity of perverse filtrations

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract Let f:S→C$f:S\rightarrow C$ be a proper surjective morphism from a smooth Kähler surface to a smooth curve. We show that the local perverse filtration associated with the induced map S[n]→C(n)$S^{[n]}\rightarrow C^{(n)}$ is multiplicative on each fiber if and only if f$f$ is an elliptic fibration.
Zili Zhang
wiley   +1 more source

On the regularity conjecture for the cohomology of finite groups [PDF]

open access: yes, 2008
Non peer ...
Benson, David J., David J. Benson
core   +1 more source

HILBERT STRATIFOLDS AND A QUILLEN TYPE GEOMETRIC DESCRIPTION OF COHOMOLOGY FOR HILBERT MANIFOLDS

open access: yesForum of Mathematics, Sigma, 2018
In this paper we use tools from differential topology to give a geometric description of cohomology for Hilbert manifolds. Our model is Quillen’s geometric description of cobordism groups for finite-dimensional smooth manifolds [Quillen, ‘Elementary ...
MATTHIAS KRECK, HAGGAI TENE
doaj   +1 more source

Topological correlators and surface defects from equivariant cohomology

open access: yesJournal of High Energy Physics, 2020
We find a one-dimensional protected subsector of N $$ \mathcal{N} $$ = 4 matter theories on a general class of three-dimensional manifolds. By means of equivariant localization we identify a dual quantum mechanics computing BPS correlators of the ...
Rodolfo Panerai   +2 more
doaj   +1 more source

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