Results 1 to 10 of about 2,055,605 (307)

On the Relationship Between Differential Algebra and Tropical Differential Algebraic Geometry [PDF]

open access: yes, 2021
This paper presents the relationship between differential algebra and tropical differential algebraic geometry, mostly focusing on the existence problem of formal power series solutions for systems of polynomial ODE and PDE. Moreover, it improves an approximation theorem involved in the proof of the fundamental theorem of tropical differential ...
Boulier, François   +3 more
core   +8 more sources

Trends in Differential Geometry and Algebraic Topology

open access: yesAxioms
With this Editorial, we present a Special Issue of Axioms entitled “Trends in Differential Geometry and Algebraic Topology [...]
Byungdo Park
doaj   +2 more sources

Completeness in partial differential algebraic geometry

open access: yesJournal of Algebra, 2014
This paper studies various aspects of complete differential algebraic varieties. The setting is the following, introduced by Kolchin. If \(F\) is a field of characteristic \(0\) equipped with \(m\) commuting derivations, then one has the notion of \textit{differential algebraic varieties} over \(F\). For simplicity, we fix a \textit{universal domain} \(
James Freitag
exaly   +2 more sources

Algebraic geometry and local differential geometry [PDF]

open access: yesAnnales Scientifiques De L'Ecole Normale Superieure, 1979
Griffiths, Phillip, Harris, Joseph
exaly   +2 more sources

Differential Bundles in Commutative Algebra and Algebraic Geometry

open access: yesTheory and Applications of Categories, 2023
In this paper, we explain how the abstract notion of a differential bundle in a tangent category provides a new way of thinking about the category of modules over a commutative ring and its opposite category. MacAdam previously showed that differential bundles in the tangent category of smooth manifolds are precisely smooth vector bundles.
Cruttwell, G. S. H.   +1 more
openaire   +3 more sources

Algebraic branch points at all loop orders from positive kinematics and wall crossing

open access: yesJournal of High Energy Physics, 2021
There is a remarkable connection between the boundary structure of the positive kinematic region and branch points of integrated amplitudes in planar N $$ \mathcal{N} $$ = 4 SYM.
Aidan Herderschee
doaj   +1 more source

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

Differential algebras in non-commutative geometry [PDF]

open access: yesJournal of Geometry and Physics, 1995
We discuss the differential algebras used in Connes' approach to Yang-Mills theories with spontaneous symmetry breaking. These differential algebras generated by algebras of the form functions $\otimes$ matrix are shown to be skew tensorproducts of differential forms with a specific matrix algebra.
Kalau, W.   +3 more
openaire   +2 more sources

Tropical fans, scattering equations and amplitudes

open access: yesJournal of High Energy Physics, 2021
We describe a family of tropical fans related to Grassmannian cluster algebras. These fans are related to the kinematic space of massless scattering processes in a number of ways.
James Drummond   +3 more
doaj   +1 more source

Generalising G2 geometry: involutivity, moment maps and moduli

open access: yesJournal of High Energy Physics, 2021
We analyse the geometry of generic Minkowski N $$ \mathcal{N} $$ = 1, D = 4 flux compactifications in string theory, the default backgrounds for string model building. In M-theory they are the natural string theoretic extensions of G2 holonomy manifolds.
Anthony Ashmore   +3 more
doaj   +1 more source

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