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The degree zero part of the quantum cohomology algebra of a smooth Fano toric symplectic manifold is determined by the superpotential function, W, of its moment polytope. In particular, this algebra is semisimple, i.e. splits as a product…

Symplectic Geometry · Mathematics 2012-11-13 Benjamin P. Mirabelli , Maksim Maydanskiy

We use the method of homological quantum reduction to construct a deformation quantization on singular symplectic quotients in the situation, where the coefficients of the moment map define a complete intersection. Several examples are…

Mathematical Physics · Physics 2007-05-23 Martin Bordemann , Hans-Christian Herbig , Markus J. Pflaum

We introduce Smale-Vietoris diffeomorphisms that include the classical DE-mappings with Smale solenoids. We describe the correspondence between basic sets of axiom A Smale-Vietoris diffeomorphisms and basic sets of nonsingular axiom A…

Dynamical Systems · Mathematics 2016-02-22 N. Isaenkova , E. Zhuzhoma

We present an expanded expository account of the $K$-moment problem for polynomial algebras over \(\R^d\), with special emphasis on compact basic closed semialgebraic sets. The central question is to characterize those linear functionals on…

Functional Analysis · Mathematics 2026-04-15 Malik Amir

Let K be a connected Lie group and M a Hamiltonian K-manifold. In this paper, we introduce the notion of convexity of M. It implies that the momentum image is convex, the moment map has connected fibers, and the total moment map is open…

Symplectic Geometry · Mathematics 2007-05-23 Friedrich Knop

We study the space of pseudo-holomorphic spheres in compact symplectic manifolds with convex boundary. We show that the theory of Gromov-Witten invariants can be extended to the class of semi-positive manifolds with convex boundary. This…

Symplectic Geometry · Mathematics 2013-02-06 Sergei Lanzat

The Generalised Baker--Schmidt Problem (1970) concerns the $f$-dimensional Hausdorff measure of the set of $\psi$-approximable points on a nondegenerate manifold. There are two variants of this problem, concerning simultaneous and dual…

Number Theory · Mathematics 2021-06-25 Mumtaz Hussain , Johannes Schleischitz , David Simmons

The cut polytope of a graph $G$ is the convex hull of the indicator vectors of all cuts in $G$ and is closely related to the MaxCut problem. We give the facet-description of cut polytopes of $K_{3,3}$-minor-free graphs and introduce an…

Combinatorics · Mathematics 2019-03-06 Markus Chimani , Martina Juhnke-Kubitzke , Alexander Nover , Tim Römer

We construct a plethora of Anosov-Katok diffeomorphisms with non-ergodic generic measures and various other mixing and topological properties. We also construct an explicit collection of the set containing the generic points of the system…

Dynamical Systems · Mathematics 2022-11-14 Divya Khurana

This paper is about the moment problem on a finite-dimensional vector space of continuous functions. We investigate the structure of the convex cone of moment functionals (supporting hyperplanes, exposed faces, inner points) and treat…

Functional Analysis · Mathematics 2018-04-20 Philipp J. di Dio , Konrad Schmüdgen

The paper is devoted to quantization of polynomial momentum observables in the cotangent bundle of a smooth manifold. A quantization procedure is proposed allowing to quantize a wide class of functions which are polynomials of any order in…

High Energy Physics - Theory · Physics 2009-10-31 Dmitry A. Kalinin

A novel geometric interpretation of the solutions of the WDVV equations formerly found by A.P. Veselov is suggested.

Mathematical Physics · Physics 2016-11-23 Franco Magri

Infinite dimensional moment problems have a long history in diverse applied areas dealing with the analysis of complex systems but progress is hindered by the lack of a general understanding of the mathematical structure behind them.…

Functional Analysis · Mathematics 2017-10-02 Maria Infusino , Salma Kuhlmann

For Riemannian metrics of constant positive curvature on a punctured sphere with conic singularities at the punctures and co-axial monodromy of the developing map, possible angles at the singularities are completely described. This…

Metric Geometry · Mathematics 2020-06-16 Alexandre Eremenko

This paper studies generalized truncated moment problems with unbounded sets. First, we study geometric properties of the truncated moment cone and its dual cone of nonnegative polynomials. By the technique of homogenization, we give a…

Numerical Analysis · Mathematics 2022-08-02 Lei Huang , Jiawang Nie , Ya-Xiang Yuan

Suppose a link K in a 3-manifold M is in bridge position with respect to two different bridge surfaces P and Q, both of which are c-weakly incompressible in the complement of K. Then either P and Q can be properly isotoped to intersect in a…

Geometric Topology · Mathematics 2007-05-23 Martin Scharlemann , Maggy Tomova

A maniplex of rank n is a connected, n-valent, edge-coloured graph that generalises abstract polytopes and maps. If the automorphism group of a maniplex M partitions the vertex-set of M into k distinct orbits, we say that M is a k-orbit…

Combinatorics · Mathematics 2018-12-12 Daniel Pellicer , Primož Potočnik , Micael Toledo

It is shown that the signature of a manifold with a symplectic circle action having only isolated fixed points, equals the alternating sum of the Novikov numbers corresponding to the cohomology class of the generalized moment map. The same…

Symplectic Geometry · Mathematics 2015-06-26 Michael Farber

We investigate how the Minkowski sum of two polytopes affects their graph and, in particular, their diameter. We show that the diameter of the Minkowski sum is bounded below by the diameter of each summand and above by, roughly, the product…

Metric Geometry · Mathematics 2019-11-13 Antoine Deza , Lionel Pournin

The purpose of this note is to show that classical cobordism arguments, which go back to the pioneering works of Mandelbaum and Moishezon, provide quick and unified proofs of any knot surgered compact simply-connected 4-manifold X_K…

Geometric Topology · Mathematics 2018-02-13 R. Inanc Baykur