Results 61 to 70 of about 164,069 (206)

Cyclic spacetimes through singularity scattering maps. The laws of quiescent bounces

open access: yesJournal of High Energy Physics, 2022
For spacetimes containing quiescent singularity hypersurfaces we propose a general notion of junction conditions based on a prescribed singularity scattering map, as we call it, and we introduce the notion of a cyclic spacetime (also called a multiverse)
Bruno Le Floch   +2 more
doaj   +1 more source

Multiview Differential Geometry of Curves

open access: yes, 2016
The field of multiple view geometry has seen tremendous progress in reconstruction and calibration due to methods for extracting reliable point features and key developments in projective geometry.
Fabbri, Ricardo, Kimia, Benjamin
core   +1 more source

Abstract Differential Geometry, Differential Algebras of Generalized Functions, and de Rham Cohomology

open access: yesActa Applicandae Mathematica, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mallios, A, Rosinger, EE
openaire   +2 more sources

An algebraic approach to minimal models in CFTs [PDF]

open access: yes, 2017
CFTs are naturally defined on Riemann surfaces. The rational ones can be solved using methods from algebraic geometry. One particular feature is the covariance of the partition function under the mapping class group.
Leitner, Marianne
core   +1 more source

L-infinity algebras from multisymplectic geometry

open access: yes, 2011
A manifold is multisymplectic, or more specifically n-plectic, if it is equipped with a closed nondegenerate differential form of degree n+1. In our previous work with Baez and Hoffnung, we described how the `higher analogs' of the algebraic and ...
Rogers, Christopher L.
core   +1 more source

The Geometry of Interaction of Differential Interaction Nets

open access: yes, 2008
The Geometry of Interaction purpose is to give a semantic of proofs or programs accounting for their dynamics. The initial presentation, translated as an algebraic weighting of paths in proofnets, led to a better characterization of the lambda-calculus ...
de Falco, Marc
core   +4 more sources

Geometry of differential operators, odd Laplacians, and homotopy algebras [PDF]

open access: yesJournal of Nonlinear Mathematical Physics, 2004
We give a complete description of differential operators generating a given bracket. In particular we consider the case of Jacobi-type identities for odd operators and brackets. This is related with homotopy algebras using the derived bracket construction. (Based on a talk at XXII Workshop on Geometric Methods in Physics at Bialowieza)
Khudaverdian, Hovhannes   +1 more
openaire   +2 more sources

Topics in algebra, geometry and differential equations

open access: yes, 2022
The study of differential equations and the study of algebraic geometry are two disciplines within mathematics that seem to be mostly disjoint from each other. Looking deeper, however, one finds that connections do exist. This thesis gives in four chapters four examples of interesting mathematical insights that can be gained from combining the concepts
openaire   +2 more sources

Intersection numbers from higher-order partial differential equations

open access: yesJournal of High Energy Physics, 2023
We propose a new method for the evaluation of intersection numbers for twisted meromorphic n-forms, through Stokes’ theorem in n dimensions. It is based on the solution of an n-th order partial differential equation and on the evaluation of multivariate ...
Vsevolod Chestnov   +4 more
doaj   +1 more source

Leading singularities in Baikov representation and Feynman integrals with uniform transcendental weight

open access: yesJournal of High Energy Physics, 2021
We provide a leading singularity analysis protocol in Baikov representation, for the searching of Feynman integrals with uniform transcendental (UT) weight.
Christoph Dlapa, Xiaodi Li, Yang Zhang
doaj   +1 more source

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