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We discuss an elementary derivation of variational symmetries and corresponding integrals of motion for the Lagrangian systems depending on acceleration. Providing several examples, we make the manuscript accessible to a wide range of…

数学物理 · 物理学 2023-07-18 Ege Coban , Ilmar Gahramanov , Dilara Kosva

Several classic one-dimensional problems of variational calculus originating in non-relativistic particle mechanics have solutions that are analogues of spatially homogeneous and isotropic universes. They are ruled by an equation which is…

广义相对论与量子宇宙学 · 物理学 2020-05-26 Valerio Faraoni

Based on a simple example, quantization of some 3-spaces is explained.

数学物理 · 物理学 2015-05-13 E. Paal , J. Virkepu

Survey talk on certain aspects of the subject, stressing the neighbor relation as a basic notion in differential geometry.

微分几何 · 数学 2017-09-26 Anders Kock

Let y''' = f(x, y, y', y'') be a 3rd order ODE. By Cartan equivalence method, we will study the local equivalence problem under the transformations group of time-fixed coordinates.

微分几何 · 数学 2009-08-26 Mehdi Nadjafikhah , Ahmad Reza Forough

Applications of the three-dimensional transformation for rotating coordinate systems to quantum mechanics, general theory relativity and optics are considered.

综合物理 · 物理学 2019-01-08 B. V. Gisin

Many different and complementary strategies for translating the basic principle of multiple topological imaging into observational analysis are now available, both for three-dimensional and two-dimensional catalogues.

天体物理学 · 物理学 2017-08-23 Boudewijn F. Roukema

This article deals with 3-forms on 6-dimensional manifodls, the first dimension where the classification of 3-forms is not trivial. There are three classes of multisymplectic 3-forms there. We study the class which is closely related to…

微分几何 · 数学 2007-05-23 Martin Panak , Jiri Vanzura

We review the following subjects: 1. Basic theory on algebraic curves and their moduli space, 2. Schottky uniformization theory of Riemann surfaces, and its extension called arithmetic uniformization theory, 3. Application to these theories…

数论 · 数学 2014-09-23 Takashi Ichikawa

This work explores the tensor and combinatorial constructs underlying the linearised higher-order variational equations of a generic autonomous system along a particular solution. The main result of this paper is a compact yet explicit and…

可精确求解与可积系统 · 物理学 2015-02-11 Sergi Simon

The theory of Space rotations is introduced. The relativity principle is generalized to satisfy to reference frames rotating in 3D space. It is shown that the most postulates and limitations of quantum theories are consequences of this…

综合物理 · 物理学 2007-05-23 Andrey Novikov-Borodin

In this paper we extend the properties of ordinary points of curves [10] to ordinary closed points of one-dimensional affine reduced schemes and then to ordinary subvarieties of codimension one.

代数几何 · 数学 2007-05-23 Ferruccio Orecchia

In this paper we consider Erd\"os-Mordell inequality and its extension in the plane of triangle to the Erd\"os-Mordell curve. Algebraic equation of this curve is derived, and using modern computer tools in mathematics, we verified one…

It is shown by very simple arguments that the observed 3+1 dimensionality of spacetime may be understood on the basis of four fundamental principles of physics namely, Causality, General Covariance, Gauge Invariance and Renormalizability.…

综合物理 · 物理学 2013-03-25 Rajat K. Pradhan

The 4-dimensional space-time is extended to pseudo-complex coordinates. Proposing the standard quantization rules in this extended space, the ones for the 4-dimensional sub-space acquire, as one solution, the commutation relations with…

广义相对论与量子宇宙学 · 物理学 2014-09-23 Peter O. Hess

A long-term research proposal on the algebraic structure, the representations and the possible applications of paraparticle algebras is structured in three modules: The first part stems from an attempt to classify the inequivalent gradings…

数学物理 · 物理学 2012-10-09 Konstantinos Kanakoglou

In a classical Hamiltonian theory with second class constraints the phase space functions on the constraint surface are observables. We give general formulas for extended observables, which are expressions representing the observables in…

高能物理 - 理论 · 物理学 2009-11-07 Simon Lyakhovich , Robert Marnelius

In the gauge natural bundle framework a new space is introduced and a first-order purely frame-formulation of General Relativity is obtained.

数学物理 · 物理学 2007-05-23 R. Cianci , S. Vignolo , D. Bruno

The geometric Lagrangian theory (of arbitrary order) is based on the analysis of some basic mathematical objects such as: the contact ideal, the (exact) variational sequence, the existence of Euler-Lagrange and Helmholtz-Sonin forms, etc.…

dg-ga · 数学 2008-02-03 Dan Radu Grigore

The arrangement of all Galois lines for the Artin-Schreier-Mumford curve in the projective 3-space is described. It may be surprising that there exist infinitely many Galois lines intersecting this curve.

代数几何 · 数学 2021-08-03 Satoru Fukasawa
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