Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Gelfand, Israel"'
To directed graphs with unique sink and source we associate a noncommutative associative alsgebra and a polynomial over this algebra. Edges of the graph correspond to pseudo-roots of the polynomial. We give a sufficient condition when coefficients of
Externí odkaz:
http://arxiv.org/abs/math/0509260
To any directed graph we associate an algebra with edges of the graph as generators and with relations defined by all pairs of directed paths with the same origin and terminus. Such algebras are related to factorizations of polynomials over noncommut
Externí odkaz:
http://arxiv.org/abs/math/0506507
We compute quaisideterminants and determinants of quaternionic matrices
Comment: 14 pages, amstex
Comment: 14 pages, amstex
Externí odkaz:
http://arxiv.org/abs/math/0206211
The quadratic algebras Q_n are associated with pseudo-roots of noncommutative polynomials. We compute the Hilbert series of the algebras Q_n and of the dual quadratic algebras Q_n^!
Comment: Amstex, 24 pages
Comment: Amstex, 24 pages
Externí odkaz:
http://arxiv.org/abs/math/0109007
Autor:
Barros-Neto, J., Gelfand, Israel M.
We explicitly calculate fundamental solutions for the Tricomi operator relative to a point in the hyperbolic region and show that these solutions originate from the hypergeometric function F(1/6,1/6;1;z).
Externí odkaz:
http://arxiv.org/abs/math/0101113
In this paper we present a definition of oriented Lagrangian symplectic matroids and their representations. Classical concepts of orientation and this extension may both be thought of as stratifications of thin Schubert cells into unions of connected
Externí odkaz:
http://arxiv.org/abs/math/0010237