D. (1985). On the cohomology of an algebra morphism. J. Algebra 95:245-262.M. Gerstenhaber and S. D. Schack. On the cohomology of an algebra morphism. J. Algebra, 95(1):245-262, 1985.Gerstenhaber, Murray; Schack
algebras inner objects of endomorphisms do not exist (for example, the set of endo- morphisms of an algebra is not a linear space). In this paper, however, we will show that, if one takes for End A the differential graded algebra C ∗ ...
Abstract.WerelatethecohomologyoftheOrlik-Solomonalgebraofadis- criminantalarrangementtothelocalsystemcohomologyofthecomplement. TheOrlik-Solomonalgebraofsuchanarrangement(viewedasacomplex)is showntobealinearapproximationofacomplexarisingfromthefundamental groupofthecomplement,thecohomologyofwhichisisomorphictothatofthe ...
Hopf Algebras in the Cohomology of A_g - Melody Chan 01:05:20 Combinatorics on Words in String Amplitudes - Oliver Schlotterer 01:10:07 Combinatorics and Geometry of the Amplituhedron - Lauren Williams 01:05:17 Adventures in Configuration Space - Nick Early 01:07:02 Adjoints and Ca...
An algebraic version of this problem goes as follows. Let Ps=F2[x1,…,xs] be the polynomial algebra on s indeterminates x1,…,xs, each of degree 1. Let the general linear group GLs=GL(s,F2) and the mod 2 Steenrod algebra A both act on Ps in the usual way. The Dickson algebra ...
41 Ana Caraiani - On the cohomology of Shimura varieties with torsion coefficients 1:11:59 Souvenirs d'Alexander Grothendieck par Michel Demazure 06:53 Savant Mélange Cédric Villani - D'où viennent les idées 19:28 Dustin Clausen - 13 Efimov K-theory 1:21:33 Dustin Clausen - 23 Efimov K...
ON THE GENUS OF FREE LOOP FIBRATIONS OVER F0-SPACES TOSHIHIRO YAMAGUCHI Received 12 March 2004 We give a lower bound of the genus of the fibration of free loops on an elliptic space whose rational cohomology is concentrated in even degrees. 2000 Mathematics Subject Classification: 55P62, 55M30...
Cup products provide a natural approach to access higher bounded cohomology groups. We extend vanishing results on cup products of Brooks quasimorphisms of
Moreover, we prove the finiteness of the Galois cohomology of an almost abelian group, which will be used for irreducible symplectic varieties of the geometric Picard rank 2. In Sect. 3, we prove the finiteness of twists for K3 surfaces and Enriques surfaces. In Sect. 4, we will prove ...
2.1 Graded Hochschild cohomology Let G be an abelian group with identity element e. We will write G as an multiplicative group. An associative algebra A with unit 1 A , is said to be G-graded, if there is a family {A g |g ∈ G} of subspaces of A such that A = ⊕ g∈G A ...