guaranteed cost control of discrete linear systems.
Hadamard product of GCD matrices.
Hadamard product versions of the Chebyshev and Kantorovich inequalities.
Hadamard's inequality in inner product spaces.
Hall exponents of matrices, tournaments and their line digraphs
Let be a square -matrix. Then is a Hall matrix provided it has a nonzero permanent. The Hall exponent of is the smallest positive integer , if such exists, such that is a Hall matrix. The Hall exponent has received considerable attention, and we both review and expand on some of its properties. Viewing as the adjacency matrix of a digraph, we prove several properties of the Hall exponents of line digraphs with some emphasis on line digraphs of tournament (matrices).
Hamiltonian square roots of skew Hamiltonian quaternionic matrices.
Hankel determinants and the Sylvester theorem. (Déterminants de Hankel et théorème de Sylvester.)
Hankel determinants of some sequences of polynomials.
Hankel forms
It is an open question whether Nehari's theorem on the circle group has an analogue on the infinite-dimensional torus. In this note it is shown that if the analogue holds, then some interesting inequalities follow for certain trigonometric polynomials on the torus. We think these inequalities are false but are not able to prove that.
Hankel forms and sums of random variables
A well known theorem of Nehari asserts on the circle group that bilinear forms in H² can be lifted to linear functionals on H¹. We show that this result can be extended to Hankel forms in infinitely many variables of a certain type. As a corollary we find a new proof that all the norms on the class of Steinhaus series are equivalent.
Hankel matrices and lattice paths.
Hankel transforms of linear combinations of Catalan numbers.
Hankel-matrix approach to invertibility of linear multivariable systems
Harmonic Rayleigh-Ritz extraction for the multiparameter eigenvalue problem.
Hasse principle for Hopf maps.
Hasse principle for the Hurwitz problem.
Hermite and Laguerre polynomials and matrix-valued stochastic.
Hermitean Téodorescu transform decomposition of continuous matrix functions on fractal hypersurfaces.
Hermitesche und orthogonale Operatoren über kommutativen Ringen.
Hermitian nonnegative-definite and positive-definite solutions of the matrix equation .