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Related papers: Meromorphic convexity on Stein manifolds

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We show that every Stein or Weinstein domain may be presented (up to deformation) as a Lefschetz fibration over the disk. The proof is an application of Donaldson's quantitative transversality techniques.

Symplectic Geometry · Mathematics 2017-03-29 Emmanuel Giroux , John Pardon

A unified summary is given of the existence theory of Stein manifolds in all dimensions, based on published and pending literature. Eliashberg's characterization of manifolds admitting Stein structures requires an extra delicate hypothesis…

Geometric Topology · Mathematics 2010-04-29 Robert E. Gompf

Suppose that Y is a complex manifold with the property that any holomorphic map from a compact convex set in a complex Euclidean space C^n (for any n) to Y is a uniform limit of entire maps from C^n to Y. We prove that a holomorphic map…

Complex Variables · Mathematics 2007-05-23 Franc Forstneric

We develop a fundamental framework for and extend the theory of rough paths to Lipschitz-gamma manifolds.

Classical Analysis and ODEs · Mathematics 2011-02-07 Thomas Cass , Christian Litterer , Terry Lyons

Some conjectures and open problems in convex geometry are presented, and their physical origin, meaning, and importance, for quantum theory and generic statistical theories, are briefly discussed.

Metric Geometry · Mathematics 2011-05-18 P. G. L. Porta Mana

The Linearization Theorem for proper Lie groupoids organizes and generalizes several results for classic geometries. Despite the various approaches and recent works on the subject, the problem of understanding invariant linearization…

Differential Geometry · Mathematics 2021-08-20 Matias del Hoyo , Mateus de Melo

Here we prove that up to diffeomorphism every compact Stein manifold W of dimension 2n+2>4 admits a Lefschetz fibration over the two-disk with Stein regular fibers, such that the monodromy of the fibration is a symplectomorphism induced by…

Geometric Topology · Mathematics 2018-03-23 Selman Akbulut , M. Firat Arikan

Steiner symmetrization along n linearly independent directions transforms every compact subset of R^n into a set of finite perimeter.

Metric Geometry · Mathematics 2015-10-27 Almut Burchard , Gregory R. Chambers

We introduce a class of real algebraic varieties characterised by a simple rationality condition, which exhibit strong properties regarding approximation of continuous and smooth mappings by regular ones. They form a natural counterpart to…

Algebraic Geometry · Mathematics 2024-12-31 Juliusz Banecki

We use a generalization of Horrocks monads for arithmetic Cohen-Macaulay (ACM) varieties to establish a cohomological characterization of linear and Steiner bundles over projective spaces and quadric hypersurfaces. We also study resolutions…

Algebraic Geometry · Mathematics 2007-05-23 Marcos Jardim , Renato Vidal Martins

In this paper, we show that a compact real surface embedded in a complex surface has a regular Stein neighborhood basis, provided that there are only finitely many complex points on the surface, and that they are all flat and hyperbolic. An…

Complex Variables · Mathematics 2015-02-24 Marko Slapar

In this short note, we collect some results regarding the Remmert reduction of holomorphically convex space and its application to a variation of the usual union problem. Classically, the union problem asks the following question: is a…

Complex Variables · Mathematics 2019-03-20 Samuele Mongodi

In a previous article (arXiv:2111.03143), we generalized Berndtsson's Nakano-positivity by retaining the same consequences under weaker hypotheses. In this article, we propose to further generalize our "twisted" Nakano-positivity theorem to…

Complex Variables · Mathematics 2021-11-11 El Mehdi Ainasse

We work out the construction of a Stein manifold from a commutative Arens-Michael algebra, under assumptions that are mild enough for the process to be useful in practice. Then, we do the passage to arbitrary complex manifolds by proposing…

Complex Variables · Mathematics 2012-03-28 Rodrigo Vargas Le-Bert

We prove a number of convexity results for strata of the diagonal pants graph of a surface, in analogy with the extrinsic geometric properties of strata in the Weil-Petersson completion. As a consequence, we exhibit convex flat subgraphs of…

Geometric Topology · Mathematics 2011-11-07 Javier Aramayona , Cyril Lecuire , Hugo Parlier , Kenneth J. Shackleton

We generalize our theorems in "Mirror Principle I" to a class of balloon manifolds. Many of the results are proved for convex projective manifolds. In a subsequent paper, Mirror Principle III, we will extend the results to projective…

Algebraic Geometry · Mathematics 2007-05-23 Bong H. Lian , Kefeng Liu , S. T. Yau

We exhibit families of smooth projective threefolds with both stably rational and non stably rational fibers.

Algebraic Geometry · Mathematics 2018-02-20 Brendan Hassett , Andrew Kresch , Yuri Tschinkel

We obtain results on the existence of complex discs in plurisubharmonically convex hulls of Lagrangian and totally real immersions to Stein manifolds.

Complex Variables · Mathematics 2015-04-20 Rasul Shafikov , Alexandre Sukhov

In the paper we present results about generalized Berwald surfaces involving the intrinsic characterization, some topological obstructions for the base manifold and examples.

Differential Geometry · Mathematics 2018-08-22 Cs. Vincze , T. Khoshdani , S. Mehdi Zadeh , M. Oláh

We study the connectedness of the real locus of smooth geometrically rational Fano threefolds and prove a sufficient criterion of $\mathbb{R}$-rationality.

Algebraic Geometry · Mathematics 2025-07-08 Andrea Fanelli , Frédéric Mangolte