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We give a combinatorial criterion for the tangent bundle on a smooth toric variety to be stable with respect to a given polarisation in terms of the corresponding lattice polytope. Furthermore, we show that for a smooth toric surface and a…

Algebraic Geometry · Mathematics 2019-10-22 Milena Hering , Benjamin Nill , Hendrik Süß

We show the properness of the moduli stack of stable surfaces over $\mathbb{Z}[1/30]$, assuming the locally-stable reduction conjecture for stable surfaces. This relies on a local Kawamata--Viehweg vanishing theorem for for 3-dimensional…

Algebraic Geometry · Mathematics 2023-11-27 Emelie Arvidsson , Fabio Bernasconi , Zsolt Patakfalvi

We use techniques of Alper-Hall-Rydh to prove a local structure theorem for smooth morphisms between smooth stacks around points with linearly reductive stabilizers. This implies that the good moduli space of a smooth stack over a base has…

Algebraic Geometry · Mathematics 2026-05-12 Mark Andrea de Cataldo , Andres Fernandez Herrero , Andrés Ibáñez Núñez

By proving that several new complexes of embedded disks are highly connected, we obtain several new homological stability results. Our main result is homological stability for topological chiral homology on an open manifold with…

Algebraic Topology · Mathematics 2016-02-08 Alexander Kupers , Jeremy Miller

This paper is motivated by recent developments in group stability, high dimensional expansion, local testability of error correcting codes and topological property testing. In Part I, we formulate and motivate three stability problems: 1.…

Group Theory · Mathematics 2024-04-02 Michael Chapman , Alexander Lubotzky

This paper proves an integral version of the Riemann-Roch theorem for surface bundles, comparing the standard cohomology classes with the cohomology classes coming from the symplectic group.

Algebraic Topology · Mathematics 2009-01-28 Ib Madsen

We define a birational version of the stability of cotangent sheaves for complex projective manifolds, and more generally for smooth orbifolds. We then show, using standard conjectures in birational classification, that these cotangent…

Complex Variables · Mathematics 2010-08-31 Frederic Campana

In this paper we present a new proof of the homological stability of the moduli space of closed surfaces in a simply connected background space $K$, which we denote by $S_g (K)$. The homology stability of surfaces in $K$ with an arbitrary…

Algebraic Topology · Mathematics 2010-02-15 Ralph L. Cohen , Ib Madsen

We show a strong Hamiltonian stability result for a simpler and larger distance on the Tamarkin category. We also give a stability result with support conditions.

Symplectic Geometry · Mathematics 2023-07-21 Tomohiro Asano , Yuichi Ike

We develop a motivic cohomology theory, representable in the Voevodsky's triangulated category of motives, for smooth separated Deligne-Mumford stacks and show that the resulting higher Chow groups are canonically isomorphic to the higher…

Algebraic Geometry · Mathematics 2025-05-30 Utsav Choudhury , Neeraj Deshmukh , Amit Hogadi

We find computable criteria for stability of symplectic leaves of Poisson manifolds. Using Poisson geometry as an inspiration, we also give a general criterion for stability of leaves of Lie algebroids, including singular ones. This not…

Differential Geometry · Mathematics 2010-01-18 Marius Crainic , Rui Loja Fernandes

We study a collection of stability conditions (in the sense of Schmitt) for complexes of sheaves over a smooth complex projective variety indexed by a positive rational parameter. We show that the Harder-Narasimhan filtration of a complex…

Algebraic Geometry · Mathematics 2012-02-17 Victoria Hoskins

We verify that the Albanese fibration of the Cartwright-Steger surface is stable, answering a problem left open in [CKY].

Algebraic Geometry · Mathematics 2020-01-08 Vincent Koziarz , Sai-Kee Yeung

We present results of a linear stability analysis of relativistic detonation fronts, which have been considered as representing phase interfaces in cosmological first order phase transitions. After discussing general stability conditions…

Astrophysics · Physics 2009-10-28 Luciano Rezzolla

Let $\mathbf{k}$ be an algebraically closed field of characteristic $\geq 7$ or zero. Let $\mathcal{A}$ be a tame order of global dimension $2$ over a normal surface $X$ over $\mathbf{k}$ such that…

Algebraic Geometry · Mathematics 2024-02-09 Eleonore Faber , Colin Ingalls , Shinnosuke Okawa , Matthew Satriano

This note revisits stability conditions on the bounded derived categories of coherent sheaves on irreducible projective curves. In particular, all stability conditions on smooth curves are classified and a connected component of the…

Algebraic Geometry · Mathematics 2026-02-25 Ziqi Liu

We prove a version the local Reeb-Thurston stability theorem for symplectic foliations.

Symplectic Geometry · Mathematics 2013-07-17 Marius Crainic , Ioan Marcut

Let $M$ be a $10$-dimensional closed oriented smooth manifold. Set $$\mathcal{D}_{M} := \{ x \in H^{2}(M; \Z/2) \mid x^{2} + w_{2}(M) x \in \rho_{2} ( TH^{4}(M;\Z) ) \}.$$ Suppose that $H_{1}(M;\Z)=0$ and $\mathcal{D}_{M} \subset \rho_{2}(…

Differential Geometry · Mathematics 2019-08-27 Huijun Yang

Stability conditions play an important role in the study of representations of a quiver. In the present paper, we study semistable representations of quivers. In particular, we describe the slopes of semistable representations of a tame…

Representation Theory · Mathematics 2015-12-10 Xintian Wang

Let $S$ be a smooth projective surface on a smooth threefold $X$ such that $X$ has Picard rank 1 and NS$(S)$ is generated by the restriction of divisors from X. We show that if $X$ satisfies the Bogomolov-Gieseker type inequality for tilt…

Algebraic Geometry · Mathematics 2019-09-17 Geoffrey Smith