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Related papers: Classification of toric surface singularities

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We study singularities obtained by the contraction of the maximal divisor in compact (non kaehlerian) surfaces which contain global spherical shells. These singularities are of genus 1 or 2, may be Q-Gorenstein, numerically Gorenstein or…

Complex Variables · Mathematics 2008-01-07 Georges Dloussky

We propose some problems on the classification of toric manifolds from the viewpoint of topology and survey related results.

Algebraic Topology · Mathematics 2008-11-28 Mikiya Masuda , Dong Youp Suh

We give criteria for Morin singularities for germs of maps into lower dimensions. As an application, we study the bifurcation of Lefschetz singularities.

Geometric Topology · Mathematics 2015-10-22 Kentaro Saji

Toric subvarieties of projective space are classified up to projective automorphisms.

Representation Theory · Mathematics 2019-09-11 Friedrich Knop , Rainer Sinn

We characterize plane curve germes non-degenerate in Kouchnirenko's sense in terms of characteristics and intersection multiplicities of branches.

Algebraic Geometry · Mathematics 2011-12-26 Evelia R. García Barroso , Andrzej Lenarcik , Arkadiusz Płoski

The object of this survey is to give an overview on the topology of singularities of holomorphic foliation germs on $(\mathbb C^2,0)$.

Complex Variables · Mathematics 2023-01-26 David Marín , Jean-François Mattei , Eliane Salem

We consider log del Pezzo surfaces coming with a non-trivial torus action. Such a surface is 1/k-log canonical if it allows a resolution of singularities with discrepanies all greater or equal to 1/k-1. We provide a concrete classification…

Algebraic Geometry · Mathematics 2025-06-10 Daniel Haettig , Juergen Hausen , Justus Springer

In this paper we show that any hypersurface singularities of germs of varieties in positive characteristic can be resolved by iterated monoidal transformations in centers in smooth subvarieties, if we have a valuation ring of iterated…

Algebraic Geometry · Mathematics 2010-06-21 Tohsuke Urabe

In this paper we consider the classification of minimal cellular structures of spaces of topological complexity two under some hypotheses on there graded cohomological algebra. This continues the method used by M.Grant et al. in [1].

Algebraic Topology · Mathematics 2016-07-27 A. Boudjaj , Y. Rami

We study the subvariety of singular sections, the discriminant, of a base point free linear system $|L|$ on a smooth toric variety $X$. On one hand we describe pairs $(X,L)$ for which the discriminant is of low dimension. Precisely, we…

Algebraic Geometry · Mathematics 2021-06-09 Roberto Muñoz , Álvaro Nolla

We prove a conjecture of Shokurov which characterises toric varieties using log pairs.

Algebraic Geometry · Mathematics 2018-05-23 Morgan Brown , James McKernan , Roberto Svaldi , Hong Zong

We classify surjective self-maps (of degree at least two) of affine surfaces according to the log Kodaira dimension.

Algebraic Geometry · Mathematics 2018-06-20 R. V. Gurjar , De-Qi Zhang

We describe a class of toric varieties in the $N$-dimensional affine space which are minimally defined by no less than $N-2$ binomial equations.

Algebraic Geometry · Mathematics 2007-05-23 Margherita Barile

In this paper, we prove that two normal complex surface germs that are inner bilipschitz--but not necessarily orientation-preserving--homeomorphic, have in fact the same oriented topological type and the same minimal plumbing graph. Along…

Algebraic Geometry · Mathematics 2025-11-10 Lorenzo Fantini , Anne Pichon

Two subset germs of Euclidean spaces are called blow-spherically equivalent, if their spherical modifications are homeomorphic and the homeomorphism induces homeomorphic tangent links. Blow-spherical equivalence is stronger than the…

Metric Geometry · Mathematics 2015-05-28 Lev Birbrair , Alexandre Fernandes , Vincent Grandjean

We show the existence of prime divisors computing minimal log discrepancies in positive characteristic except for a special case. Moreover we prove the lower semicontinuity of minimal log discrepancies for smooth varieties in positive…

Algebraic Geometry · Mathematics 2019-12-11 Kohsuke Shibata

In this notes we classify toric Fano 4-folds having positive second Chern Character.

Algebraic Geometry · Mathematics 2011-09-06 Edilaine Ervilha Nobili

We classify singular foliations admitting a given leaf and a given transverse singular foliation.

Differential Geometry · Mathematics 2026-01-21 Simon-Raphael Fischer , Camille Laurent-Gengoux

We study semi-stable degenerations of toric varieties determined by certain partitions of their moment polytopes. Analyzing their defining equations we prove a property of uniqueness.

Algebraic Geometry · Mathematics 2007-12-21 Marina Marchisio , Vittorio Perduca

In this paper, we study tropicalisations of singular surfaces in toric threefolds. We completely classify singular tropical surfaces of maximal-dimensional type, show that they can generically have only finitely many singular points, and…

Algebraic Geometry · Mathematics 2013-09-04 Hannah Markwig , Thomas Markwig , Eugenii Shustin