Zobrazeno 1 - 10
of 89 981
pro vyhledávání: '"Massey P"'
Autor:
Hofmann, Franziska
We give a uniform vanishing criterion for products in bounded cohomology. This allows us to reprove and extend previous vanishing results for cup products and Massey triple products in the bounded cohomology of free groups and in the equivariant boun
Externí odkaz:
http://arxiv.org/abs/2407.17034
We provide proofs of two theorems stated by Massey in 1961, concerning the obstructions to finding complex structures on real vector bundles. In addition, we determine the second obstruction to a complex structure on a rank six orientable real vector
Externí odkaz:
http://arxiv.org/abs/2406.05518
Autor:
Markl, Martin
Kadeishvili's minimal model theorem establishes the existence of an $A_\infty$-structure, unique up to isomorphism, on the cohomology of a dg associative algebra, which captures its homotopy type. In this note we prove the existence of minimal models
Externí odkaz:
http://arxiv.org/abs/2404.19607
We show that the bigraded quasi-isomorphism type of the bigraded, bidifferential algebra of forms on a compact K\"ahler manifold generally contains more information than the de Rham cohomology algebra with its real Hodge structure. More precisely, on
Externí odkaz:
http://arxiv.org/abs/2404.09867
Autor:
Quadrelli, Claudio
Let $p$ be a prime. We characterize the oriented right-angled Artin pro-$p$ groups whose $\mathbb{F}_p$-cohomology algebra yields no essential $n$-fold Massey products for every $n>2$, in terms of the associated digraph. Moreover, we show that the $\
Externí odkaz:
http://arxiv.org/abs/2403.01464
Autor:
Quadrelli, Claudio
We prove that a strengthened version of Minac-Tan's Massey Vanishing Conjecture holds true for fields with a finite number of square classes whose maximal pro-$2$ Galois group is of elementary type (as defined by I. Efrat). In particular, this proves
Externí odkaz:
http://arxiv.org/abs/2312.07967
Autor:
Qi, Peikai
We compute Iwasawa $\lambda$ invariant in terms of Massey products in Galois cohomology with restricted ramification. When applied to imaginary quadratic fields and cyclotomic fields, we obtain a new proof and generalization of results of Gold and Mc
Externí odkaz:
http://arxiv.org/abs/2402.06028
Autor:
Sferruzza, Tommaso, Tomassini, Adriano
We study the interplay between geometrically-Bott-Chern-formal metrics and SKT metrics. We prove that a $6$-dimensional nilmanifold endowed with a invariant complex structure admits an SKT metric if and only if it is geometrically-Bott-Chern-formal.
Externí odkaz:
http://arxiv.org/abs/2402.02537
Publikováno v:
IEEE Trans. Inform. Theory. Vol. 67(1), 2021, 268-281
We study the problem of the computation of Groebner basis for the ideal of linear recurring relations of a doubly periodic array. We find a set of indexes such that, along with some conditions, guarantees that the set of polynomials obtained at the l
Externí odkaz:
http://arxiv.org/abs/2401.10527
Autor:
Ndombol, Bitjong, Thomas, Jean-Claude.
In this paper, we show that the existence of two sequences of Massey iterated product containing zero in the cohomology of a 1-connected CW complex of finite type $X$ directly bears on the unbounded growth of the Betti numbers of the free loop space
Externí odkaz:
http://arxiv.org/abs/2312.00609