English
Related papers

Related papers: Examples of limits of Frobenius (type) structures:…

200 papers

A variety of universal algebras is called limit if it is non-finitely based but all its proper subvarieties are finitely based. Until recently, only two explicit examples of limit varieties of monoids, constructed by Jackson, were known.…

Group Theory · Mathematics 2020-08-11 S. V. Gusev

A coamoeba is the image of a subvariety of a complex torus under the argument map to the real torus. We describe the structure of the boundary of the coamoeba of a variety, which we relate to its logarithmic limit set. Detailed examples of…

Algebraic Geometry · Mathematics 2012-03-30 Mounir Nisse , Frank Sottile

In this paper, we develop the infinitesimal geometry of the limit spaces of compact Riemannian manifolds with boundary, where we assume lower bounds on the sectional curvatures of manifolds and boundaries and the second fundamental forms of…

Differential Geometry · Mathematics 2026-04-14 Takao Yamaguchi , Zhilang Zhang

We give an explicit description of the canonical Frobenius structure attached (by the results of the first part of this article) to the polynomial f(u_0,...,u_n)=w_0u_0+...+w_nu_n restricted to the torus u_0^{w_0}...u_n^{w_n}=1, for any…

Algebraic Geometry · Mathematics 2011-01-04 Antoine Douai , Claude Sabbah

We give new examples of terminal and log canonical singularities.

Algebraic Geometry · Mathematics 2011-07-15 János Kollár

We describe the limits of canonical series along families of curves degenerating to a nodal curve which is general for its topology, in the weak sense that the branches over nodes on each of its components are in general position. We define…

Algebraic Geometry · Mathematics 2025-01-27 Omid Amini , Eduardo Esteves , Eduardo Garcez

In this article, we study local models associated to certain Shimura varieties. In particular, we present a resoultion of their singularities. As a consequence, we are able to determine the alternating semisimple trace of the geometric…

Algebraic Geometry · Mathematics 2007-05-23 Nicole Kraemer

We show that the number of deformation types of canonically polarized manifolds over an arbitrary variety with proper singular locus is finite, and that this number is uniformly bounded in any finite type family of base varieties. As a…

Algebraic Geometry · Mathematics 2019-04-08 Sandor J. Kovacs , Max Lieblich

We discuss the Euclidean limit of hyperbolic SU(2)-monopoles, framed at infinity, from the point of view of pluricomplex geometry. More generally, we discuss the geometry of hypercomplex manifolds arising as limits of pluricomplex…

Differential Geometry · Mathematics 2012-01-27 Roger Bielawski , Lorenz Schwachhöfer

This paper proves the existence of potentials of the first and second kind of a Frobenius like structure in a frame which encompasses families of arrangements. Surprisingly the proof is based on the study of finite sets of vectors in a…

Algebraic Geometry · Mathematics 2016-08-31 Claus Hertling , Alexander Varchenko

We present three examples of countable homogeneous structures (also called Fraisse limits) whose automorphism groups are not universal, namely, fail to contain isomorphic copies of all automorphism groups of their substructures. Our first…

Group Theory · Mathematics 2021-08-25 W. Kubis , S. Shelah

We present an approach to construct a class of generalized Frobenius manifold structures on the orbit spaces of affine Weyl groups, and prove that their monodromy groups are parabolic subgroups of the associated affine Weyl groups.

Differential Geometry · Mathematics 2026-01-13 Lingrui Jiang , Si-Qi Liu , Yingchao Tian , Youjin Zhang

In this paper, we show that the quotient space of the domain by the reflection group for an elliptic root system has a structure of Frobenius manifold for the case of codimension 1. We also give a characterization of this Frobenius manifold…

Algebraic Geometry · Mathematics 2007-06-26 Ikuo Satake

We explicitly compute limit shapes for several grand canonical Gibbs ensembles of partitions of integers. These ensembles appear in models of aggregation and are also related to invariant measures of zero range and coagulation-fragmentation…

Mathematical Physics · Physics 2018-08-15 Ibrahim Fatkullin , Valeriy Slastikov

We give a characterization, in terms of simplicial sets, of Frobenius objects in the category of relations. This result generalizes a result of Heunen, Contreras, and Cattaneo showing that special dagger Frobenius objects in the category of…

Category Theory · Mathematics 2024-09-04 Rajan Amit Mehta , Ruoqi Zhang

We define the bounded coarse structure attached to a family of pseudometrics and give some counterexamples to conjectures that arise naturally.

General Topology · Mathematics 2014-10-14 Jesús P. Moreno-Damas

In this paper, as a continuation of [30], we consider the Gromov-Hausdorff convergence and collapsing in the family of compact Riemannian manifolds with boundary satisfying lower bounds on the sectional curvatures of interior manifolds,…

Differential Geometry · Mathematics 2025-04-09 Takao Yamaguchi , Zhilang Zhang

We discuss some examples of open manifolds which admit non-isomorphic symplectic structures of Liouville type.

Symplectic Geometry · Mathematics 2010-12-14 Paul Seidel

The explicit description of the Frobenius structure for the elliptic root system of type $D_4^{(1,1)}$ in terms of the characters of an affine Lie algebra of type $D_4^{(1)}$ is given.

Algebraic Geometry · Mathematics 2017-10-31 Ikuo Satake

This paper proves some special cases in which localization of tight closure holds. In particular it studies the condition LC relating to bounding the Loewy lengths of local cohomology of Frobenius iterates of quotient rings.

Commutative Algebra · Mathematics 2014-09-01 Craig Huneke