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Related papers: A note on Hamiltonian stability for sheaves

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In this paper we study the continuous dependence with respect to obstacles for obstacle problems with measure data. This is deeply investigated introducing a suitable type of convergence, which gives stability under very general hypotheses.…

Functional Analysis · Mathematics 2007-05-23 Paolo Dall'Aglio

We generalize the notion of asymptotic mapping class groups and allow them to surject to the Higman--Thompson groups, answering a question of Aramayona and Vlamis in the case of the Higman--Thompson groups. When the underlying surface is a…

Group Theory · Mathematics 2025-11-26 Rachel Skipper , Xiaolei Wu

We introduce the notion of $T$-stability for torsion-free Higgs sheaves as a natural generalization of the notion of $T$-stability for torsion-free coherent sheaves over compact complex manifolds. We prove similar properties to the…

Differential Geometry · Mathematics 2015-09-25 S. A. H. Cardona

The problem of homological stability helps us to catch the structure of group homology. We calculate homological stability of special orthogonal groups, and we also calculate the stability of orthogonal groups with determinant-twisted…

K-Theory and Homology · Mathematics 2015-11-04 Masayuki Nakada

We point out an effect which may stabilize a supersymmetric membrane moving on a manifold with boundary, and lead to a light-cone Hamiltonian with a discrete spectrum of eigenvalues. The analysis is carried out explicitly for a closed…

High Energy Physics - Theory · Physics 2009-10-30 J. G. Russo

We introduce a notion of stability for sheaves with respect to several polarisations that generalises the usual notion of Gieseker-stability. We prove, under a boundedness assumption, which we show to hold on threefolds or for rank two…

Algebraic Geometry · Mathematics 2016-07-20 Daniel Greb , Julius Ross , Matei Toma

For an equivariant reflexive sheaf over a polarised toric variety, we study slope stability of its reflexive pullback along a toric fibration. Examples of such fibrations include equivariant blow-ups and toric locally trivial fibrations. We…

Algebraic Geometry · Mathematics 2023-07-28 Achim Napame , Carl Tipler

The present paper focuses on the study of t-stabilities on a triangulated category in the sense of Gorodentsev, Kuleshov and Rudakov. We give an equivalent description for the finest t-stability on a piecewise hereditary triangulated…

Representation Theory · Mathematics 2018-02-07 Shiquan Ruan , Xintian Wang

We study $\varepsilon$-stability in continuous logic. We first consider stability in a model, where we obtain a definability of types result with a better approximation than that in the literature. We also prove forking symmetry for…

Logic · Mathematics 2024-11-08 Nicolas Chavarria

We give a different proof of Nuer's result on the exsistence of stable sheaves on Enriques surfaces.

Algebraic Geometry · Mathematics 2015-12-02 Kota Yoshioka

We show that any extremal contraction from a smooth projective variety with dimension less than or equal to three appears as a moduli space of (semi)stable objects in the derived category of coherent sheaves.

Algebraic Geometry · Mathematics 2012-04-04 Yukinobu Toda

Let $X$ be a smooth projective variety over $\mathbb C$. In this paper, we prove that $\mathrm{D}^b(X)$, the bounded derived category of coherent sheaves on $X$, always admits stability conditions in the sense of Bridgeland.

Algebraic Geometry · Mathematics 2026-02-02 Chunyi Li

For any smooth projective variety $X$ of dimension $n$ over an algebraically closed field $k$ of characteristic $p>0$ with $\mu(\Omega^1_X)>0$. If ${\rm T}^{\ell}(\Omega^1_X)$ ($0<\ell<n(p-1)$) are semi-stable, then the sheaf $B^1_X$ of…

Algebraic Geometry · Mathematics 2009-05-14 Xiaotao Sun

We show a stability-type theorem for foliations on projective spaces which arise as pullbacks of foliations with a split tangent sheaf on weighted projective spaces. As a consequence, we will be able to construct many irreducible components…

Algebraic Geometry · Mathematics 2025-01-14 Javier Gargiulo Acea , Ariel Molinuevo , Federico Quallbrunn , Sebastián Lucas Velazquez

We give a rigorous proof for the linear stability of the Skyrmion. In addition, we provide new proofs for the existence of the Skyrmion and the GGMT bound.

Mathematical Physics · Physics 2016-03-14 Matthew Creek , Roland Donninger , Wilhelm Schlag , Stanley Snelson

We give a necessary and sufficient condition for strong stability of low dimensional Hamiltonian systems, in terms of the iterates of a closed orbit and the Conley-Zehnder index. Applications to Mathieu equation and stable harmonic…

Dynamical Systems · Mathematics 2022-05-17 Yanxia Deng , Daniel Offin

We present a novel notion of stable objects in the derived category of coherent sheaves on a smooth projective variety. As one application we compactify a moduli space of stable bundles using genuine complexes.

Algebraic Geometry · Mathematics 2007-05-23 Georg Hein , David Ploog

We describe stability conditions for pairs consisting of a coherent sheaf and a homomorphism to a fixed coherent sheaf on a projective variety. The corresponding moduli spaces are constructed for pairs on curves and surfaces. We consider…

alg-geom · Mathematics 2008-02-03 Daniel Huybrechts , Manfred Lehn

We prove a general representation stability result for polynomial coefficient systems which lets us prove representation stability and secondary homological stability for many families of groups with polynomial coefficients. This gives two…

Algebraic Topology · Mathematics 2021-06-22 Jeremy Miller , Peter Patzt , Dan Petersen

We investigate a semi-continuity property for stability conditions for sheaves that is important for the problem of variation of the moduli spaces as the stability condition changes. We place this in the context of a notion of stability…

Algebraic Geometry · Mathematics 2019-06-28 Daniel Greb , Julius Ross , Matei Toma