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DM
2002
110views more  DM 2002»
15 years 4 months ago
Cyclic BSEC of block size 3
Abstract. A k-sized balanced sampling plan excluding contiguous units of order v and index , denoted by BSEC(v, k, ), is said to be bicyclic if it admits an automorphism consisting...
Ruizhong Wei
JAT
2007
67views more  JAT 2007»
15 years 3 months ago
Rakhmanov's theorem for orthogonal matrix polynomials on the unit circle
Rakhmanov’s theorem for orthogonal polynomials on the unit circle gives a sufficient condition on the orthogonality measure for orthogonal polynomials on the unit circle, in orde...
Walter Van Assche
MP
2007
89views more  MP 2007»
15 years 3 months ago
Sums of random symmetric matrices and quadratic optimization under orthogonality constraints
Let Bi be deterministic real symmetric m × m matrices, and ξi be independent random scalars with zero mean and “of order of one” (e.g., ξi ∼ N(0, 1)). We are interested to...
Arkadi Nemirovski
JAT
2010
70views more  JAT 2010»
15 years 2 months ago
Density of eigenvalues and its perturbation invariance in unitary ensembles of random matrices
We generally study the density of eigenvalues in unitary ensembles of random matrices from the recurrence coefficients with regularly varying conditions for the orthogonal polynomi...
Dang-Zheng Liu, Zheng-Dong Wang, Kui-Hua Yan
CMA
2010
90views more  CMA 2010»
15 years 1 months ago
Neumann problems with time singularities
: In this paper we study the existence and uniqueness of solutions to a nonlinear Neumann problem for a scalar second order ordinary differential equation u = a t u + f(t, u, u ), ...
Irena Rachunková, Svatoslav Stanek, Ewa Wei...