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Related papers: Adelic toric varieties and adelic loop groups

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The loop space of the Riemann sphere consisting of all $C^k$ or Sobolev $W^{k,p}$ maps from the circle $S^1$ to the sphere is an infinite dimensional complex manifold. We compute the Picard group of holomorphic line bundles on this loop…

Complex Variables · Mathematics 2022-03-10 Ning Zhang

We determine the rational class and Picard groups of the moduli space of stable logarithmic maps in genus zero, with target projective space relative a hyperplane. For the class group we exhibit an explicit basis consisting of boundary…

Algebraic Geometry · Mathematics 2024-04-16 Patrick Kennedy-Hunt , Navid Nabijou , Qaasim Shafi , Wanlong Zheng

We study the unipotent completion $\Pi^{DR}_{un}(x_0, x_1, X_K)$ of the de Rham fundamental groupoid [De] of a smooth algebraic variety over a local non-archimedean field K of characteristic 0. We show that the vector space…

Algebraic Geometry · Mathematics 2007-05-23 Vadim Vologodsky

This is the first paper of a series. We prove an arithmetic Hodge index theorem for adelic line bundles on projective varieties over number fields. It extends the arithmetic Hodge index theorem of Faltings, Hriljac and Moriwaki on…

Number Theory · Mathematics 2013-04-15 Xinyi Yuan , Shou-Wu Zhang

We continue the program started in \cite{M1} to understand the combinatorial commutative algebra of the projective coordinate rings of the moduli stack $\mathcal{M}_{C, \vec{p}}(SL_2(\C))$ of quasi-parabolic $SL_2(\C)$ principal bundles on…

Commutative Algebra · Mathematics 2016-06-01 Christopher Manon

We define and study a certain category of vector bundles on a p-adic curve to which we can associate in a functorial way finite dimensional p-adic representations of the geometric fundamental group. Among other things we investigate two…

Number Theory · Mathematics 2007-05-23 C. Deninger , A. Werner

In this paper we study a $k$-dimensional analytic subvariety of the complex algebraic torus. We show that if its logarithmic limit set is a finite rational $(k-1)$-dimensional spherical polyhedron, then each irreducible component of the…

Algebraic Geometry · Mathematics 2014-07-25 Farid Madani , Lamine Nisse , Mounir Nisse

Using the new approach to analytic geometry developed by Clausen and Scholze by means of condensed mathematics, we prove that for every affinoid analytic adic space $X$, pseudocoherent complexes, perfect complexes, and finite projective…

Algebraic Geometry · Mathematics 2021-11-16 Grigory Andreychev

There is a well-known correspondence between the symplectic variety of representations of the fundamental group of a punctured Riemann surface into a compact Lie group G, with fixed conjugacy classes at the punctures, and a complex variety…

Symplectic Geometry · Mathematics 2007-05-23 Jacques Hurtubise , Lisa C. Jeffrey

The paper concerns the topology of an isospectral real smooth manifold for certain Jacobi element associated with real split semisimple Lie algebra. The manifold is identified as a compact, connected completion of the disconnected Cartan…

Symplectic Geometry · Mathematics 2007-05-23 L. Casian , Y. Kodama

The main problem addressed in the paper is the Torelli problem for n-dimensional varieties of general type, more specifically for varieties with ample canonical bundle. It asks under which geometrical condition for a variety the period map…

Algebraic Geometry · Mathematics 2007-05-23 Ingrid C. Bauer , Fabrizio M. E. Catanese

We construct smooth rational real algebraic varieties of every dimension $\ge$ 4 which admit infinitely many pairwise non-isomorphic real forms.

Algebraic Geometry · Mathematics 2018-07-17 Adrien Dubouloz , Gene Freudenburg , Lucy Moser-Jauslin

In this paper we obtain a description of the Grothendieck group of complex vector bundles over the classifying space of a p-local finite group in terms of representation rings of subgroups of its Sylow. We also prove a stable elements…

Algebraic Topology · Mathematics 2020-02-27 José Cantarero , Natàlia Castellana , Lola Morales

Toric geometry provides a bridge between the theory of polytopes and algebraic geometry: one can associate to each lattice polytope a polarized toric variety. In this thesis we explore this correspondence to classify smooth lattice…

Algebraic Geometry · Mathematics 2013-07-05 Douglas Monsôres

Let $T$ be a compact torus. We prove that, up to equivariant rational equivalence, the category of $T$-simply connected, $T$-finite type $T$-spaces with finitely many isotropy types is completely described by certain finite systems of…

Algebraic Topology · Mathematics 2021-06-02 Leopold Zoller

Let $f\colon C \rightarrow \mathbb{P}^1$ be a degree $k$ genus $g$ cover. The stratification of line bundles $L \in \mathrm{Pic}^d(C)$ by the splitting type of $f_*L$ is a refinement of the stratification by Brill-Noether loci $W^r_d(C)$.…

Algebraic Geometry · Mathematics 2020-10-16 Hannah K. Larson

Following the philosophy of arithmetic topology, we describe a point of view which helps look at surfaces and $p$-adic fields in a "uniform way", and show that results on mapping class groups can be extended to this point of view, and thus…

Number Theory · Mathematics 2023-03-09 Nadav Gropper

We give a complete classification of equivariant vector bundles of rank two over smooth complete toric surfaces and construct moduli spaces of such bundles. This note is a direct continuation of an earlier note where we developed a general…

Algebraic Geometry · Mathematics 2009-08-06 Markus Perling

Let D = {D_{1},...,D_{l}} be an arrangement of smooth hypersurfaces with normal crossings on the complex projective space P^n and let \Omega^{1}_{P^n}(log D) be the logarithmic bundle attached to it. Following [1], we show that…

Algebraic Geometry · Mathematics 2015-06-08 Elena Angelini

We prove that a K\"ahler group which is cubulable, i.e. which acts properly discontinuously and cocompactly on a CAT(0) cubical complex, has a finite index subgroup isomorphic to a direct product of surface groups, possibly with a free…

Geometric Topology · Mathematics 2019-06-26 Thomas Delzant , Pierre Py