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Displaying 181 – 200 of 255

Structure of unitary groups over finite group rings and its application

Jizhu Nan, Yufang Qin (2010)

Czechoslovak Mathematical Journal

In this paper, we determine all the normal forms of Hermitian matrices over finite group rings $R = F_{q^{2}} G$ , where $q = p^{α}$ , $G$ is a commutative $p$ -group with order $p^{β}$ . Furthermore, using the normal forms of Hermitian matrices, we study the structure of unitary group over $R$ through investigating its BN-pair and order. As an application, we construct a Cartesian authentication code and compute its size parameters.

Structure preserving algorithms for perplectic eigenproblems.

Mackey, D.Steven, Mackey, Niloufer, Dunlavy, Daniel M. (2005)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Structure properties of D-R spaces [Book]

Hartmut von Trotha (1981)

Structured condition numbers and backward errors in scalar product spaces.

Tisseur, Françoise, Graillat, Stef (2006)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Structured conditioning of matrix functions.

Davies, Philip I. (2004)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Structured Jordan canonical forms for structured matrices that are Hermitian, skew Hermitian or unitary with respect to indefinite inner products.

Mehrmann, Volker, Xu, Hongguo (1999)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Structured low rank approximations of the sylvester resultant matrix for approximate GCDS of Bernstein basis polynomials.

Winkler, Joab R., Allan, John D. (2008)

ETNA. Electronic Transactions on Numerical Analysis [electronic only]

Structured polynomial eigenproblems related to time-delay systems.

Fassbender, Heike, Mackey, D.Steven, Mackey, Niloufer, Schröder, Christian (2008)

ETNA. Electronic Transactions on Numerical Analysis [electronic only]

Structured tools for structured matrices.

Mackey, D.Steven, Mackey, Niloufer, Tisseur, Françoise (2003)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Structures Algebraiques munis, avec des lois de composition generalisees - Generalisations du produit scalaire

Leonidas Konguetsof (1996)

Δελτίο της Ελληνικής Μαθηματικής Εταιρίας

Studying the various properties of MIN and MAX matrices - elementary vs. more advanced methods

Mika Mattila, Pentti Haukkanen (2016)

Special Matrices

Let T = {z1, z2, . . . , zn} be a finite multiset of real numbers, where z1 ≤ z2 ≤ · · · ≤ zn. The purpose of this article is to study the different properties of MIN and MAX matrices of the set T with min(zi , zj) and max(zi , zj) as their ij entries, respectively.We are going to do this by interpreting these matrices as so-called meet and join matrices and by applying some known results for meet and join matrices. Once the theorems are found with the aid of advanced methods, we also consider whether...

Stupeň inverznej krivky v projektívnom priestore Lagrangeových-Sylvestrových polynómov

Imrich Komara (1973)

Matematický časopis

Su alcuni invarianti numerici associati a sistemi di equazioni lineari in un modulo

Maria Teresa Molfino (1971)

Rendiconti del Seminario Matematico della Università di Padova

Subdeterminants and subgraphs

Antonín Vrba (1974)

Časopis pro pěstování matematiky

Subdirect sums of doubly diagonally dominant matrices.

Zhu, Yan, Huang, Ting-Zhu (2007)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Subdirect sums of nonsingular $M$ -matrices and of their inverses.

Bru, Rafael, Pedroche, Francisco, Szyld, Daniel B. (2005)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Subdirect sums of $S$ -strictly diagonally dominant matrices.

Bru, Rafael, Pedroche, Francisco, Szyld, Daniel B. (2006)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Subdominant eigenvalues for stochastic matrices with given column sums.

Kirkland, Stephen J. (2009)

ELA. The Electronic Journal of Linear Algebra [electronic only]

Subgroups of a finite group whose algebra of invariants is a complete intersection

Н.Л. Гордеев (1982)

Zapiski naucnych seminarov Leningradskogo

Subharmonicity in von Neumann algebras

Thomas Ransford, Michel Valley (2005)

Studia Mathematica

Let ℳ be a von Neumann algebra with unit $1_{ℳ}$ . Let τ be a faithful, normal, semifinite trace on ℳ. Given x ∈ ℳ, denote by $μ_{t} {(x)}_{t \geq 0}$ the generalized s-numbers of x, defined by $μ_{t} (x)$ = inf||xe||: e is a projection in ℳ i with $τ (1_{ℳ} - e)$ ≤ t (t ≥ 0). We prove that, if D is a complex domain and f:D → ℳ is a holomorphic function, then, for each t ≥ 0, $λ \mapsto \int_{0}^{t} l o g μ_{s} (f (λ)) d s$ is a subharmonic function on D. This generalizes earlier subharmonicity results of White and Aupetit on the singular values of matrices.

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