Results 1 to 10 of about 298 (130)

Finiteness properties of the category of mod p representations of ${\textrm {GL}}_2 (\mathbb {Q}_{p})$

open access: yesForum of Mathematics, Sigma, 2021
We establish the Bernstein-centre type of results for the category of mod p representations of $\operatorname {\mathrm {GL}}_2 (\mathbb {Q}_p)$ . We treat all the remaining open cases, which occur when p is $2$ or $3$ .
Vytautas Paškūnas, Shen-Ning Tung
doaj   +1 more source

Troisi\`eme groupe de cohomologie non ramifi\'ee d'un solide cubique sur un corps de fonctions d'une variable [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2018
En combinant une m\'ethode de C. Voisin avec la descente galoisienne sur le groupe de Chow en codimension $2$, nous montrons que le troisi\`eme groupe de cohomologie non ramifi\'ee d'un solide cubique lisse d\'efini sur le corps des fonctions d'une ...
Jean-Louis Colliot-Thélène   +1 more
doaj   +1 more source

Real rectifiable currents, holomorphic chains and algebraic cycles

open access: yesComplex Manifolds, 2021
We study some fundamental properties of real rectifiable currents and give a generalization of King’s theorem to characterize currents defined by positive real holomorphic chains.
Teh Jyh-Haur, Yang Chin-Jui
doaj   +1 more source

Classifying divisor topologies for string phenomenology

open access: yesJournal of High Energy Physics, 2022
In this article we present a pheno-inspired classification for the divisor topologies of the favorable Calabi Yau (CY) threefolds with 1 ≤ h 1,1(CY) ≤ 5 arising from the four-dimensional reflexive polytopes of the Kreuzer-Skarke database.
Pramod Shukla
doaj   +1 more source

On locally analytic vectors of the completed cohomology of modular curves

open access: yesForum of Mathematics, Pi, 2022
We study the locally analytic vectors in the completed cohomology of modular curves and determine the eigenvectors of a rational Borel subalgebra of $\mathfrak {gl}_2(\mathbb {Q}_p)$ .
Lue Pan
doaj   +1 more source

Weak gravity bounds in asymptotic string compactifications

open access: yesJournal of High Energy Physics, 2021
We study the charge-to-mass ratios of BPS states in four-dimensional N $$ \mathcal{N} $$ = 2 supergravities arising from Calabi-Yau threefold compactifications of Type IIB string theory.
Brice Bastian   +2 more
doaj   +1 more source

Noncommutative Hodge conjecture

open access: yesJournal of Noncommutative Geometry, 2023
The paper provides a version of the rational Hodge conjecture for \mathsf{dg} categories. The noncommutative Hodge conjecture is equivalent to the version proposed by Perry (2022) for admissible subcategories.
openaire   +2 more sources

ON THE INTEGRAL HODGE AND TATE CONJECTURES OVER A NUMBER FIELD

open access: yesForum of Mathematics, Sigma, 2013
Hassett and Tschinkel gave counterexamples to the integral Hodge conjecture among 3-folds over a number field. We work out their method in detail, showing that essentially all known counterexamples to the integral Hodge conjecture over the complex ...
BURT TOTARO
doaj   +1 more source

Hodge decomposition of string topology

open access: yesForum of Mathematics, Sigma, 2021
Let X be a simply connected closed oriented manifold of rationally elliptic homotopy type. We prove that the string topology bracket on the $S^1$-equivariant homology $ {\overline {\text {H}}}_\ast ^{S^1}({\mathcal {L}} X,{\mathbb {Q}}) $ of the free ...
Yuri Berest   +2 more
doaj   +1 more source

Beilinson's Hodge Conjecture for Smooth Varieties [PDF]

open access: yesJournal of K-Theory, 2013
AbstractLet U/ℂ be a smooth quasi-projective variety of dimension d, CHr (U,m) Bloch's higher Chow group, andclr,m: CHr (U,m) ⊗ ℚ → homMHS (ℚ(0), H2r−m (U, ℚ(r)))the cycle class map. Beilinson once conjectured clr,m to be surjective [Be]; however, Jannsen was the first to find a counterexample in the case m = 1 [Ja1].
de Jeu, R.M.H., Lewis, J.D.
openaire   +2 more sources

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