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The (weakly) sign symmetric $P$ -matrix completion problems.

DeAlba, Luz Maria, Hardy, Timothy L., Hogben, Leslie, Wangsness, Amy (2003)

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

The Well-Covered Dimension Of Products Of Graphs

Isaac Birnbaum, Megan Kuneli, Robyn McDonald, Katherine Urabe, Oscar Vega (2014)

Discussiones Mathematicae Graph Theory

We discuss how to find the well-covered dimension of a graph that is the Cartesian product of paths, cycles, complete graphs, and other simple graphs. Also, a bound for the well-covered dimension of Kn × G is found, provided that G has a largest greedy independent decomposition of length c < n. Formulae to find the well-covered dimension of graphs obtained by vertex blowups on a known graph, and to the lexicographic product of two known graphs are also given.

The Wigner semi-circle law and the Heisenberg group

Jacques Faraut, Linda Saal (2007)

Banach Center Publications

The Wigner Theorem states that the statistical distribution of the eigenvalues of a random Hermitian matrix converges to the semi-circular law as the dimension goes to infinity. It is possible to establish this result by using harmonic analysis on the Heisenberg group. In fact this convergence corresponds to the topology of the set of spherical functions associated to the action of the unitary group on the Heisenberg group.

Théorème pour la discussion d’un système de $n$ équations du premier degré à $n$ inconnues

G. Fontené (1875)

Nouvelles annales de mathématiques : journal des candidats aux écoles polytechnique et normale

Theorems of the alternative for cones and Lyapunov regularity of matrices

Bryan Cain, Daniel Hershkowitz, Hans Schneider (1997)

Czechoslovak Mathematical Journal

Standard facts about separating linear functionals will be used to determine how two cones $C$ and $D$ and their duals $C^{*}$ and $D^{*}$ may overlap. When $T V \to W$ is linear and $K \subset V$ and $D \subset W$ are cones, these results will be applied to $C = T (K)$ and $D$ , giving a unified treatment of several theorems of the alternate which explain when $C$ contains an interior point of $D$ . The case when $V = W$ is the space $H$ of $n \times n$ Hermitian matrices, $D$ is the $n \times n$ positive semidefinite matrices, and $T (X) = A X + X^{*} A$ yields new and known results about the existence of block diagonal...

Theorie der biquadratischen Formeln.

G. Frobenius (1890)

Journal für die reine und angewandte Mathematik

Theorie der goniometrischen und der longimetrischen Quaternionen [Book]

Karl Wilhelm Unverzagt (1876)

Theorie der linearen Formen mit ganzen Coefficienten.

G. Frobenius (1879)

Journal für die reine und angewandte Mathematik

There is no analog of the transpose map for infinite matrices.

Juan Jacobo Simón (1997)

Publicacions Matemàtiques

In this note we show that there are no ring anti-isomorphism between row finite matrix rings. As a consequence we show that row finite and column finite matrix rings cannot be either isomorphic or Morita equivalent rings. We also show that antiisomorphisms between endomorphism rings of infinitely generated projective modules may exist.

Tilings associated with non-Pisot matrices

Maki Furukado, Shunji Ito, E. Arthur Robinson (2006)

Annales de l’institut Fourier

Suppose $A \in G l_{d} (ℤ)$ has a 2-dimensional expanding subspace $E^{u}$ , satisfies a regularity condition, called “good star”, and has $A^{*} \geq 0$ , where $A^{*}$ is an oriented compound of $A$ . A morphism $θ$ of the free group on ${1, 2, \dots, d}$ is called a non-abelianization of $A$ if it has structure matrix $A$ . We show that there is a tiling substitution $Θ$ whose “boundary substitution” $θ = \partial Θ$ is a non-abelianization of $A$ . Such a tiling substitution $Θ$ leads to a self-affine tiling of $E^{u} \sim ℝ^{2}$ with $A_{u} {: = A |}_{E_{u}} \in G L_{2} (ℝ)$ as its expansion. In the last section we find conditions on $A$ so...

We give a classification of linear endomorphisms up to topological conjugacy.

Currently displaying 2661 – 2680 of 3008

Previous Page 134 Next

Displaying 2661 – 2680 of 3008

The (weakly) sign symmetric $P$ -matrix completion problems.

The Well-Covered Dimension Of Products Of Graphs

The Wigner semi-circle law and the Heisenberg group

Théorème pour la discussion d’un système de $n$ équations du premier degré à $n$ inconnues

Theorems of the alternative for cones and Lyapunov regularity of matrices

Theorie der biquadratischen Formeln.

Theorie der goniometrischen und der longimetrischen Quaternionen [Book]

Theorie der linearen Formen mit ganzen Coefficienten.

There is no analog of the transpose map for infinite matrices.

Tilings associated with non-Pisot matrices

To solving multiparameter problems of algebra. 6. Spectral characteristics of polynomial matrices.

To solving multiparameter problems of algebra. 7. The method of $P G$ - $q$ factorization and its applications.

Toeplitz band matrices with exponentially growing condition numbers.

Topología grassmaniana sobre los ideales cerrados de codimensión finita de un álgebra de Banach conmutativa.

Topological classification of linear endomorphisms

Topological proper separation theorems

Total Reduction of Linear Systems of Operator Equations With the System Matrix in the Companion Form

Totally positive completions for monotonically labeled block clique graphs.

Towards a classification of maximal unicellular bands.

Trace decomposition and recurrency

Currently displaying 2661 – 2680 of 3008