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By employing polynomial-reduced KP integrability, combined with the string equation, this work establishes explicit relationships between the generalized Kontsevich model, the topological recursion of the spectral curve, and the geometry of…

Mathematical Physics · Physics 2026-05-05 Shuai Guo , Ce Ji , Chenglang Yang , Qingsheng Zhang

In very rough terms, the main theorem is that the set, which consists of semistable vector bundles with trivial rational Chern classes and nontrivial kth cohomology on a smooth complex projective variety, is a degeneration of a union of…

alg-geom · Mathematics 2008-02-03 Donu Arapura

The Chen-Ng\^o Conjecture predicts that the Hitchin morphism from the moduli stack of $G$-Higgs bundles on a smooth projective variety surjects onto the space of spectral data. The conjecture is known to hold for the group $GL_n$ and any…

Algebraic Geometry · Mathematics 2025-10-09 Matthew Huynh

A general conjecture is stated on the cone of automorphic vector bundles admitting nonzero global sections on schemes endowed with a smooth, surjective morphism to a stack of $G$-zips of connected-Hodge-type; such schemes should include all…

Number Theory · Mathematics 2017-10-09 Wushi Goldring , Jean-Stefan Koskivirta

This paper contains a proof of a conjecture of Breuil and Schneider, on the existence of an invariant norm on any locally algebraic representation of $\GL(n)$, with integral central character, whose smooth part is given by a generalized…

Number Theory · Mathematics 2011-06-08 Claus Mazanti Sorensen

Let $X$ be a smooth projective variety over an algebraically closed field of arbitrary characteristic, and $f$ a dynamical correspondence of $X$. In 2016, the second author conjectured that the dynamical degrees of $f$ defined by the…

Algebraic Geometry · Mathematics 2021-12-01 Fei Hu , Tuyen Trung Truong

We study Deligne's conjecture on the monodromy weight filtration on the nearby cycles in the mixed characteristic case, and reduce it to the nondegeneracy of certain pairings in the semistable case. We also prove a related conjecture of…

Algebraic Geometry · Mathematics 2007-05-23 Morihiko Saito

We introduce the notion of categorical absorption of singularities: an operation that removes from the derived category of a singular variety a small admissible subcategory responsible for singularity and leaves a smooth and proper…

Algebraic Geometry · Mathematics 2026-05-27 Alexander Kuznetsov , Evgeny Shinder

Chisini's conjecture asserts that for a cuspidal curve $B\subset \mathbb P^2$ a generic morphism $f$ of a smooth projective surface onto $\mathbb P^2$ of degree $\geq 5$, branched along $B$, is unique up to isomorphism. We prove that if…

Algebraic Geometry · Mathematics 2007-05-23 Vik. S. Kulikov

A conjecture of Mumford predicts a complete set of relations between the generators of the cohomology ring of the moduli space of rank 2 semi-stable sheaves with fixed odd degree determinant on a smooth, projective curve of genus at least…

Algebraic Geometry · Mathematics 2021-03-18 Ananyo Dan , Inder Kaur

We prove a sharp, quantitative analogue of Helgason's conjecture at the level of distributions: For a semisimple Lie group $G$ of real rank one, Poisson transforms map a Sobolev space on $P\backslash G$ boundedly with closed range to an…

K-Theory and Homology · Mathematics 2026-04-08 Heiko Gimperlein , Magnus Goffeng

Irreducible symplectic varieties are higher-dimensional analogues of K3 surfaces. In this paper, we prove the Shafarevich conjecture for irreducible symplectic varieties of fixed deformation class. We also observe that the second…

Number Theory · Mathematics 2022-04-26 Teppei Takamatsu

We formulate a tropical analogue of Grothendieck's section conjecture: that for every stable graph G of genus g>2, and every field k, the generic curve with reduction type G over k satisfies the section conjecture. We prove many cases of…

Algebraic Geometry · Mathematics 2023-06-01 Wanlin Li , Daniel Litt , Nick Salter , Padmavathi Srinivasan

This survey covers some of the recent developments on noncommutative motives and their applications. Among other topics, we compute the additive invariants of relative cellular spaces and orbifolds; prove Kontsevich's semi-simplicity…

Algebraic Geometry · Mathematics 2017-09-04 Goncalo Tabuada

We obtain a theorem which allows to prove compact generation of derived categories of Grothendieck categories, based upon certain coverings by localizations. This theorem follows from an application of Rouquier's cocovering theorem in the…

K-Theory and Homology · Mathematics 2012-04-17 Wendy Lowen , Michel Van den Bergh

A smooth complex variety satisfies the Generalized Jacobian Conjecture if all its \'etale endomorphisms are proper. We study the conjecture for $\mathbb{Q}$-acyclic surfaces of negative Kodaira dimension. We show that $G$-equivariant…

Algebraic Geometry · Mathematics 2019-04-30 Adrien Dubouloz , Karol Palka

Given a morphism between complex projective varieties, we make several conjectures on the relations between the set of pseudo-effective (co)homology classes which are annihilated by pushforward and the set of classes of varieties contracted…

Algebraic Geometry · Mathematics 2013-03-04 O. Debarre , Z. Jiang , C. Voisin

Given a group, we construct a fundamental additive functor on its orbit category. We prove that any isomorphism conjecture valid for this fundamental isomorphism functor holds for all additive functors, like K-theory, cyclic homology,…

K-Theory and Homology · Mathematics 2012-02-29 Paul Balmer , Goncalo Tabuada

We compute the Hochschild and negative cyclic homology of the nodal curves, and we show that the (noncommutative) Hodge to de Rham spectral sequence degenerates at the second page. We also classify all the Hochschild classes that can be…

Algebraic Geometry · Mathematics 2025-03-19 Yunfan He

In this article, we propose noncommutative versions of Tate conjecture and Hodge conjecture. If we consider these conjectures for a dg-category of perfect complexes over a certain schemes $X$, then they are equivalent to the classical Tate…

Algebraic Geometry · Mathematics 2020-02-12 Satoshi Mochizuki