Results 11 to 20 of about 1,348 (187)

Quantum cohomology as a deformation of symplectic cohomology

open access: yesJournal of Fixed Point Theory and Applications, 2022
AbstractWe prove that under certain conditions, the quantum cohomology of a positively monotone compact symplectic manifold is a deformation of the symplectic cohomology of the complement of a simple crossings symplectic divisor. We also prove rigidity results for the skeleton of the divisor complement.
Borman, Matthew Strom   +2 more
openaire   +4 more sources

BRST cohomology is Lie algebroid cohomology

open access: yesNuclear Physics B, 2023
27 pages, 1 figure; v3: minor typos fixed; published ...
Weizhen Jia   +2 more
openaire   +4 more sources

Cohomological finiteness conditions in Bredon cohomology [PDF]

open access: yesBulletin of the London Mathematical Society, 2010
We show that any soluble group $G$ of type Bredon-$\FP_{\infty}$ with respect to the family of all virtually cyclic subgroups such that centralizers of infinite order elements are of type $\FP_{\infty}$ must be virtually cyclic. To prove this, we first reduce the problem to the case of polycyclic groups and then we show that a polycyclic-by-finite ...
Kochloukova, D.H.   +2 more
openaire   +3 more sources

Fluid Cohomology

open access: yesACM Transactions on Graphics, 2023
The vorticity-streamfunction formulation for incompressible inviscid fluids is the basis for many fluid simulation methods in computer graphics, including vortex methods, streamfunction solvers, spectral methods, and Monte Carlo methods.
Hang Yin   +4 more
openaire   +1 more source

En–cohomology with coefficients as functor cohomology [PDF]

open access: yesAlgebraic & Geometric Topology, 2016
Building on work of Livernet and Richter, we prove that E_n-homology and E_n-cohomology of a commutative algebra with coefficients in a symmetric bimodule can be interpreted as functor homology and cohomology. Furthermore we show that the associated Yoneda algebra is trivial.
openaire   +3 more sources

A Cohomology Theory for Commutative Monoids

open access: yesMathematics, 2015
Extending Eilenberg–Mac Lane’s cohomology of abelian groups, a cohomology theory is introduced for commutative monoids. The cohomology groups in this theory agree with the pre-existing ones by Grillet in low dimensions, but they differ beyond dimension ...
María Calvo-Cervera, Antonio M. Cegarra
doaj   +1 more source

From β to η: a new cohomology for deformed Sasaki-Einstein manifolds

open access: yesJournal of High Energy Physics, 2022
We discuss in detail the different analogues of Dolbeault cohomology groups on Sasaki-Einstein manifolds and prove a new vanishing result for the transverse Dolbeault cohomology groups H ∂ ¯ p 0 k $$ {H}_{\overline{\partial}}^{\left(p,0\right)}(k ...
Edward Lødøen Tasker
doaj   +1 more source

CHOW GROUPS, CHOW COHOMOLOGY, AND LINEAR VARIETIES

open access: yesForum of Mathematics, Sigma, 2014
We compute the Chow groups and the Fulton–MacPherson operational Chow cohomology ring for a class of singular rational varieties including toric varieties.
BURT TOTARO
doaj   +1 more source

Fredholm modules over categories, Connes periodicity and classes in cyclic cohomology

open access: yesComptes Rendus. Mathématique, 2023
We replace a ring with a small $\mathbb{C}$-linear category $\mathcal{C}$, seen as a ring with several objects in the sense of Mitchell. We introduce Fredholm modules over this category and construct a Chern character taking values in the cyclic ...
Balodi, Mamta, Banerjee, Abhishek
doaj   +1 more source

A Note on Coeffective 1–Differentiable Cohomology

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
After a brief review of some basic notions concerning 1-differentiable cohomology, named here ď-cohomology, we introduce a Lichnerowicz ď– cohomology in a classical way.
Ida Cristian, Mercheşan Sabinşan
doaj   +1 more source

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