Results 91 to 100 of about 31,583 (180)

Equivariant Seiberg–Witten–Floer cohomology

Algebraic & Geometric Topology
58 pages, minor ...
Baraglia, David, Hekmati, Pedram
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Equivariant covering spaces and cohomology [PDF]

Proceedings of the American Mathematical Society, 1983
The Bredon cohomology of classifying spaces for categories of equivariant covering spaces is considered and shown to correspond to derived functors for the coefficient systems of the Bredon theory.
openaire   +1 more source

Orbifold cup products and ring structures on Hochschild cohomologies

, 2007
In this paper we study the Hochschild cohomology ring of convolution algebras associated to orbifolds, as well as their deformation quantizations. In the first case the ring structure is given in terms of a wedge product on twisted polyvectorfields on ...
Pflaum, M. J., Posthuma, H. B., Tang, X., Tseng, H. -H.   +3 more
core  

Equivariant cohomology of projective spaces

Algebraic & Geometric Topology
We compute the equivariant homology and cohomology of projective spaces with integer coefficients. More precisely, in the case of cyclic groups, we show that the cellular filtration of the projective space $P(kρ)$, of lines inside copies of the regular representation, yields a splitting of $H\underline{\mathbb{Z}}\bigwedge P(kρ)_+$ as a wedge of ...
Basu, Samik, Dey, Pinka, Karmakar, Aparajita   +2 more
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Equivariant cohomology and cohomological field theories [PDF]

Nuclear Physics B - Proceedings Supplements, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Oriented Algebras and the Hochschild Cohomology Group

Mathematics, 2018
Koam and Pirashivili developed the equivariant version of Hochschild cohomology by mixing the standard chain complexes computing group with associative algebra cohomologies to obtain the bicomplex C ˜ G * ( A , X ).
Ali N. A. Koam
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Framed cohomological Hall algebras and cohomological stable envelopes. [PDF]

Lett Math Phys, 2023
Botta TM.
europepmc   +1 more source

Splines on Cayley graphs of the symmetric group

Forum of Mathematics, Sigma
A spline is an assignment of polynomials to the vertices of a graph whose edges are labeled by ideals, where the difference of two polynomials labeling adjacent vertices must belong to the corresponding ideal. The set of splines forms a ring. We consider
Nathan R. T. Lesnevich
doaj   +1 more source

Additive combinatorics using equivariant cohomology

Israel Journal of Mathematics
We introduce a geometric method to study additive combinatorial problems. Using equivariant cohomology we reprove the Dias da Silva-Hamidoune theorem. We improve a result of Sun on the linear extension of the Erdős-Heilbronn conjecture. We generalize a theorem of G.
Fehér, László, Nagy, János
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ANTIBRACKETS AND NON-ABELIAN EQUIVARIANT COHOMOLOGY [PDF]

Modern Physics Letters A, 1995
The Weyl algebra of a semisimple Lie group and an exterior algebra of a symplectic manifold possesses antibrackets. They are applied to formulate the models of non-Abelian equivariant cohomologies.
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