Results 11 to 20 of about 176,435 (287)

Rational orthogonal versus real orthogonal [PDF]

open access: yesThe Electronic Journal of Linear Algebra, 2009
23 ...
Djokovic, Dragomir Z.   +2 more
openaire   +2 more sources

Orthogonal Matroids [PDF]

open access: yesJournal of Algebraic Combinatorics, 2001
In [Usp. Mat. Nauk 42, No. 2, 107-134 (1987; Zbl 0629.14035), Sov. Math., Dokl. 35, 63-66 (1987); translation from Dokl. Akad. Nauk SSSR 292, 524-528 (1987; Zbl 0645.22005), and Russ. Math. Surv. 42, No. 2, 133-168 (1987; Zbl 0639.14031)] \textit{I. M. Gelfand} and \textit{V. V. Serganova} generalize the notion of matroid to Coxeter matroids.
Vince, Andrew, White, Neil
openaire   +1 more source

Orthogonal stability

open access: yesJournal of Algebra, 2023
A character (ordinary or modular) is called orthogonally stable if all non-degenerate quadratic forms fixed by representations with those constituents have the same determinant mod squares. We show that this is the case provided there are no odd-degree orthogonal constituents.
Nebe, Gabriele, Parker, Richard
openaire   +3 more sources

Geometric Measure of Indistinguishability for Groups of Identical Particles [PDF]

open access: yes, 2007
The concept of p-orthogonality (1=< p =< n) between n-particle states is introduced. It generalizes common orthogonality, which is equivalent to n-orthogonality, and strong orthogonality between fermionic states, which is equivalent to 1-orthogonality ...
A. J. Coleman   +15 more
core   +3 more sources

Orthogonality Relations for Multivariate Krawtchouk Polynomials [PDF]

open access: yes, 2011
The orthogonality relations of multivariate Krawtchouk polynomials are discussed. In case of two variables, the necessary and sufficient conditions of orthogonality is given by Gr\"unbaum and Rahman in [SIGMA 6 (2010), 090, 12 pages, arXiv:1007.4327]. In
Mizukawa, Hiroshi
core   +2 more sources

Monomiality, orthogonal and pseudo-orthogonal polynomials [PDF]

open access: yesInternational Mathematical Forum, 2006
We reconsider some families of orthogonal polynomials, within the framework of the so called monomiality principle. We show that the associated operational formalism allows the framing of the polynomial orthogonality using an algebraic point of view. Within such a frame- work, we introduce families of pseudo-orthogonal polynomials, namely polynomials,
GERMANO, Bruna   +3 more
openaire   +2 more sources

A Survey on q-Polynomials and their Orthogonality Properties [PDF]

open access: yes, 2010
In this paper we study the orthogonality conditions satisfied by the classical q-orthogonal polynomials that are located at the top of the q-Hahn tableau (big q-jacobi polynomials (bqJ)) and the Nikiforov-Uvarov tableau (Askey-Wilson polynomials (AW ...
Alfaro   +21 more
core   +1 more source

Deciding Orthogonality in Construction-A Lattices [PDF]

open access: yes, 2015
Lattices are discrete mathematical objects with widespread applications to integer programs as well as modern cryptography. A fundamental problem in both domains is the Closest Vector Problem (popularly known as CVP).
Chandrasekaran, Karthekeyan   +2 more
core   +2 more sources

A New Approximate Birkhoff Orthogonality Type

open access: yesEuropean Journal of Mathematical Analysis, 2022
In this note, we introduce a new approximate Birkhoff orthogonality type and give a characterization for inner product spaces using the approximate orthogonality.
Chuanjiang Zhou, Qi Liu, Yongjin Li
doaj   +1 more source

Species Orthogonalization [PDF]

open access: yesJournal of Theoretical Biology, 2001
We discuss general formation of complementary behaviors, functions and forms in biological species competing for resources. We call orthogonalization the related processes on macro and micro-level of a self-organized formation of correlations in the species properties.
openaire   +3 more sources

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