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In this note we discuss some arithmetic and geometric questions concerning self maps of projective algebraic varieties.

Algebraic Geometry · Mathematics 2007-05-23 Najmuddin Fakhruddin

We deal with some of problems posed by Monk and related to cardinal invariant of ultraproducts of Boolean algebras. We also introduce and investigate some new cardinal invariants.

Logic · Mathematics 2016-09-07 Andrzej Rosłanowski , Saharon Shelah

This is a survey work on Lie algebras with ad-invariant metrics. We summarize main features, notions and constructions, in the aim of bringing into consideration the main research on the topic. We also give some list of examples in low…

Differential Geometry · Mathematics 2017-06-15 Gabriela P. Ovando

The Eynard-Orantin invariants of a plane curve are multilinear differentials on the curve. For a particular class of genus zero plane curves these invariants can be equivalently expressed in terms of simpler expressions given by polynomials…

Algebraic Geometry · Mathematics 2010-01-05 Paul Norbury , Nick Scott

We develop a quasisymmetric analogue of the theory of Schubert cycles, building off of our previous work on a quasisymmetric analogue of Schubert polynomials and divided differences. Our constructions result in a natural geometric…

Algebraic Geometry · Mathematics 2024-10-22 Philippe Nadeau , Hunter Spink , Vasu Tewari

A knot invariant is called skein if it is determined by a finite number of skein relations. In the paper we discuss some basic properties of skein invariants and mention some known examples of skein invariants.

Geometric Topology · Mathematics 2024-12-30 Igor Nikonov

We study some new invariant measures arising from local inverse iterates. Examples are also given.

Dynamical Systems · Mathematics 2009-09-08 Eugen Mihailescu

In this note we introduce generalised pairs from the perspective of the evolution of the notion of space in birational algebraic geometry. We describe some applications of generalised pairs in recent years and then mention a few open…

Algebraic Geometry · Mathematics 2020-08-10 Caucher Birkar

General invariants of a geometric mapping of a symmetric affine connection space are obtained in this paper. These invariants are generalizations of the previous obtained basic invariants (see [16]). Moreover, these invariants are related…

Differential Geometry · Mathematics 2018-11-05 Nenad O. Vesić

Motivated by physics, we propose two conjectures regarding the cohomology ring of the crepant resolutions of orbifolds and cohomological invariants of K-equivalent manifolds.

Algebraic Geometry · Mathematics 2007-05-23 Yongbin Ruan

In this paper we give a brief overview of the geometry of involute gears, from a mathematical more than an engineering perspective. We also list some of the many variant geared mechanisms and discuss some of our 3D printed mechanisms.

History and Overview · Mathematics 2023-01-02 Elisabetta A. Matsumoto , Henry Segerman

The differential geometric aspects of Geometric Phases are reviewed.

Mathematical Physics · Physics 2007-05-23 Péter Lévay

We consider the algebra of invariants of binary forms of degree 10 with complex coefficients, construct a system of parameters with degrees 2, 4, 6, 6, 8, 9, 10, 14 and find the 106 basic invariants.

Representation Theory · Mathematics 2010-02-05 Andries E. Brouwer , Mihaela Popoviciu

We review computations of joint invariants on a linear symplectic space, discuss variations for an extension of group and space and relate this to other equivalence problems and approaches, most importantly to differential invariants.

Differential Geometry · Mathematics 2020-11-24 Fredrik Andreassen , Boris Kruglikov

We study linearizability of actions of finite groups on cubic threefolds with non-isolated singularities.

Algebraic Geometry · Mathematics 2025-05-08 Ivan Cheltsov , Lisa Marquand , Yuri Tschinkel , Zhijia Zhang

We consider tilings of Euclidean spaces by polygons or polyhedra, in particular, tilings made by a substitution process, such as the Penrose tilings of the plane. We define an isomorphism invariant related to a subgroup of rotations and…

Dynamical Systems · Mathematics 2018-07-10 Charles Radin , Lorenzo Sadun

In this paper we construct the jet geometrical extensions of the KCC-invariants, which characterize a given second-order system of differential equations on the 1-jet space $J^1(R,M)$. A generalized theorem of characterization of our jet…

Differential Geometry · Mathematics 2010-03-30 Vladimir Balan , Mircea Neagu

In this paper, some new Gronwall type inequalities involving iterated integrals are given.

Classical Analysis and ODEs · Mathematics 2007-05-23 Y. J. Cho , S. S. Dragomir , Y. -H. Kim

We discuss some new invariants of quark mixing and show their usefulness with a simple example. We also present some other new tools for analyzing quark mixing.

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Kusenko

We discuss various phenomena of tangency in projective and convex geometry.

Algebraic Geometry · Mathematics 2011-03-07 Roland Abuaf