Results 41 to 50 of about 16,698 (215)

Index reduction of differential algebraic equations by differential algebraic elimination

open access: yesCoRR, 2015
19 pages ...
Xiaolin Qin   +4 more
openaire   +2 more sources

Homological Algebra for Superalgebras of Differentiable Functions

open access: yes, 2012
This is the second in a series of papers laying the foundations for a differential graded approach to derived differential geometry (and other geometries in characteristic zero). In this paper, we extend the classical notion of a dg-algebra to define, in
Sub Algebra,Geometry&Mathem. Logic begr.   +2 more
core   +1 more source

Painlevé Equation PII and Strongly Normal Extensions

open access: yesDemonstratio Mathematica, 2016
The aim of this paper is to show that if F is a differential field and y is a PII transcendent such that tr.deg.F 〈y〉 = 2, then every constant in F〈y〉 is in F. We also show that in this case, F〈y〉 is not contained in any strongly normal extension.
Miri Sofiane El-Hadi
doaj   +1 more source

Rota-Baxter operators on the polynomial algebras, integration and averaging operators [PDF]

open access: yes, 2014
The concept of a Rota–Baxter operator is an algebraic abstraction of integration. Following this classical connection, we study the relationship between Rota–Baxter operators and integrals in the case of the polynomial algebra k[x] k[x] .
Guo, Li   +5 more
core   +1 more source

DiffAlg: a Differential algebra package [PDF]

open access: yesJournal of Software for Algebra and Geometry, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dubinsky, Manuel   +3 more
openaire   +2 more sources

3-Derivations and 3-Automorphisms on Lie Algebras

open access: yesMathematics, 2022
In this paper, first we establish the explicit relation between 3-derivations and 3- automorphisms of a Lie algebra using the differential and exponential map.
Haobo Xia
doaj   +1 more source

Differential algebraic Lie algebras [PDF]

open access: yesTransactions of the American Mathematical Society, 1979
A class of infinite-dimensional Lie algebras over the field K \mathcal {K}
openaire   +1 more source

Spectral Curves for Third-Order ODOs

open access: yesAxioms
Spectral curves are algebraic curves associated to commutative subalgebras of rings of ordinary differential operators (ODOs). Their origin is linked to the Korteweg–de Vries equation and to seminal works on commuting ODOs by I.
Sonia L. Rueda, Maria-Angeles Zurro
doaj   +1 more source

A counterexample in differential algebra [PDF]

open access: yesProceedings of the American Mathematical Society, 1965
1. The example. Let A be a nontrivial additive subgroup of the complexes, C, with a finite additive basis, c1, . , c.n; and let G be the multiplicative group of those complex numbers u such that A is closed under multiplication by both u and u-1. Suppose that G does not consist entirely of roots of unity.2 Let F be the field of meromorphic functions ...
openaire   +1 more source

Global optimization of interplanetary transfers with deep space maneuvers using differential algebra

open access: yes, 2017
In this chapter, differential algebra is used to globally optimize multigravity assist interplanetary trajectories with deep space maneuvers. A search space pruning procedure is adopted, and the trajectory design is decomposed into a sequence of sub ...
Topputo, F   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy