Results 111 to 120 of about 56,755 (205)

Independence of hyperlogarithms over function fields via algebraic combinatorics

open access: yes, 2017
We obtain a necessary and sufficient condition for the linear independence of solutions of differential equations for hyperlogarithms. The key fact is that the multiplier (i.e.
Deneufchâtel, Matthieu   +3 more
core  

Physics, Combinatorics and Hopf Algebras

open access: yes, 2004
A number of problems in theoretical physics share a common nucleus of combinatoric nature. It is argued here that Hopf algebraic concepts and techiques can be particularly efficient in dealing with such problems. As a first example, a brief review is given of the recent work of Connes, Kreimer and collaborators on the algebraic structure of the process
openaire   +4 more sources

Combinatorics and the Schur algebra

open access: yesJournal of Pure and Applied Algebra, 1993
The author studies the structure of the Schur algebra \(S_ R(n,r)\) over a commutative ring \(R\). A basis of codeterminants for this algebra is given which is analogous to the one constructed by \textit{G.-C. Rota} [Théorie combinatoire des invariants classiques, Sér. Math. Pures Appl.
openaire   +1 more source

From Dedekind’s Level 12 Identities to Combinatorial Structures of Colored Partitions

open access: yesAxioms
The Dedekind η-function plays an important role in number theory, particularly in the study of modular forms, q-series, and partition identities. In this paper, we investigate several level-12 η-function identities and examine their combinatorial ...
Fatemah Mofarreh   +2 more
doaj   +1 more source

Algebraic Combinatorics [PDF]

open access: yes, 2007
Peter Orlik, Volkmar Welker
openaire   +2 more sources

Combinatoric of syzygies for semigroup algebras

open access: yesCollectanea Mathematica, 1998
We describe how the graded minimal resolution of certain semigroup algebras is related to the combinatorics of some simplicial complexes. More precisely, we make explicit the isomorphism between the Tor groups of the resolution and the Koszul homology. We obtain characterizations of the Cohen-Macaulay and Gorenstein conditions.
Campillo, Antonio   +3 more
openaire   +2 more sources

Relative rank and regularization

open access: yesForum of Mathematics, Sigma
We introduce a new concept of rank – relative rank associated to a filtered collection of polynomials. When the filtration is trivial, our relative rank coincides with Schmidt rank (also called strength).
Amichai Lampert, Tamar Ziegler
doaj   +1 more source

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