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Related papers: Stability Of The Parabolic Poincar\'e Bundle

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Let $G$ be a reductive affine algebraic group defined over $\mathbb C$, and let $\nabla_0$ be a meromorphic $G$-connection on a holomorphic $G$-bundle $E_0$, over a smooth complex curve $X_0$, with polar locus $P_0 \subset X_0$. We assume…

Algebraic Geometry · Mathematics 2016-08-03 Indranil Biswas , Viktoria Heu , Jacques Hurtubise

We set up a BNR correspondence for moduli spaces of Higgs bundles over a curve with a parabolic structure over any algebraically closed field. This leads to a concrete description of generic fibers of the associated strongly parabolic…

Algebraic Geometry · Mathematics 2021-10-19 Xiaoyu Su , Bin Wang , Xueqing Wen

Let $X$ be a smooth polarized algebraic surface over the compex number field. We discuss the invariants obtained from the moduli stacks of semistable sheaves of arbitrary ranks on $X$. For that purpose, we construct the virtual fundamental…

Algebraic Geometry · Mathematics 2007-05-23 Takuro Mochizuki

Moduli spaces of stably irreducible sheaves on Kodaira surfaces belong to the short list of examples of smooth and compact holomorphic symplectic manifolds, and it is not yet known how they fit into the classification of holomorphic…

Algebraic Geometry · Mathematics 2022-09-08 Eric Boulter

In this paper we construct a coarse moduli scheme of stable unramified irregular singular parabolic connections on a smooth projective curve and prove that the constructed moduli space is smooth and has a symplectic structure. Moreover we…

Algebraic Geometry · Mathematics 2015-01-14 Michi-aki Inaba , Masa-Hiko Saito

Let G be a reductive group over an algebraically closed field k. Consider the moduli space of stable principal G-bundles on a smooth projective curve C over k. We give necessary and sufficient conditions for the existence of Poincar\'e…

Algebraic Geometry · Mathematics 2010-07-06 Indranil Biswas , Norbert Hoffmann

We use wall-crossing in the Bridgeland stability manifold to systematically study the birational geometry of the moduli space $M_\sigma(\mathbf{v})$ of $\sigma$-semistable objects of class $\mathbf{v}$ for a generic stability condition…

Algebraic Geometry · Mathematics 2019-01-16 Howard Nuer , Kōta Yoshioka

Let X be a projective smooth holomorphic Poisson surface, in other words, whose anti-canonical divisor is effective. We show that moduli spaces of certain Bridgeland stable objects on X are smooth. Moreover, we construct Poisson structures…

Algebraic Geometry · Mathematics 2023-06-05 Chunyi Li , Xiaolei Zhao

We study the Bridgeland stability of line bundles on surfaces using Bridgeland stability conditions determined by divisors. We show that given a smooth projective surface $S$, a line bundle $L$ is always Bridgeland stable for those…

Algebraic Geometry · Mathematics 2015-09-16 Daniele Arcara , Eric Miles

On a polarised surface, solutions of the Vafa-Witten equations correspond to certain polystable Higgs pairs. When stability and semistability coincide, the moduli space admits a symmetric obstruction theory and a $\mathbb C^*$ action with…

Algebraic Geometry · Mathematics 2022-10-11 Yuuji Tanaka , Richard P. Thomas

We present a geometric formula of Poincar\'e type, which is inspired by a classical work of Sternberg and Zumbrun, and we provide a classification result of stable solutions of linear elliptic problems with nonlinear Robin conditions on…

Analysis of PDEs · Mathematics 2017-10-23 Serena Dipierro , Andrea Pinamonti , Enrico Valdinoci

In this thesis we study the relationship between the existence of canonical metrics on a complex manifold and stability in the sense of geometric invariant theory. We introduce a modification of K-stability of a polarised variety which we…

Differential Geometry · Mathematics 2007-05-23 Gábor Székelyhidi

For a Riemann surface $X$ and the moduli of regularly stable $G$-bundles $M$, there is a naturally occuring "$adjoint$" vector bundle over $X \times M$. One can take the determinant of this vector bundle with respect to the projection map…

Differential Geometry · Mathematics 2017-04-04 Arideep Saha

We study the singular cohomology of the moduli space of rank 2 parabolic bundles on a Riemann surface where the weights are all 1/4. We give a formula, based on work of Boden, for the Poincar\'e polynomial of this moduli space in general,…

Symplectic Geometry · Mathematics 2012-05-09 Ethan Street

In this note we concern with the wave maps from the Lorentzian manifold with the periodic in time metric into the Riemannian manifold, which belongs to the one-parameter family of Riemannian manifolds. That family contains as a special case…

Analysis of PDEs · Mathematics 2015-04-14 Tatsuo Nishitani , Karen Yagdjian

We prove that the CM line bundle is ample on the proper moduli space which parametrizes KSBA stable varieties.

Algebraic Geometry · Mathematics 2016-02-08 Zsolt Patakfalvi , Chenyang Xu

We introduce a notion of $\xi$-stability on the affine grassmannian $\xx$ for the classical groups, this is the local version of the $\xi$-stability on the moduli space of Higgs bundles on a curve introduced by Chaudouard and Laumon. We…

Algebraic Geometry · Mathematics 2015-09-18 Zongbin Chen

Let ${\mathcal M}$ be a moduli space of stable vector bundles of rank $r$ and determinant $\xi$ on a compact Riemann surface $X$. Fix a semistable holomorphic vector bundle $F$ on $X$ such that $\chi(E\otimes F)= 0$ for $E \in \mathcal M$.…

Algebraic Geometry · Mathematics 2025-07-09 Indranil Biswas , Jacques Hurtubise

Let $E$ be a vector bundle over a smooth curve $C$, and $V$ a generating space of sections of $E$. We characterise Mumford linear stability of the associated projective model of $\mathbb{P} E^\vee$ in $\mathbb{P} V^\vee$ in terms of…

Algebraic Geometry · Mathematics 2025-09-16 Abel Castorena , George H. Hitching

We prove that the kernel of the evaluation morphism of global sections - namely the syzygy bundle - of a sufficiently ample line bundle on an abelian variety is stable. This settles a conjecture of Ein-Lazarsfeld-Mustopa, in the case of…

Algebraic Geometry · Mathematics 2023-06-14 Federico Caucci , Martí Lahoz
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