Titlebook: Contributions to Operator Theory and its Applications; Proceedings of the C I. Gohberg,J. W. Helton,L. Rodman Conference proceedings 1988 B

Conserve

https://doi.org/10.1007/978-3-642-59702-2tion to singular systems with boundary conditions. The case of finite block Toeplitz matrices is also included. Fredholm characteristics are computed. All formulas are explicit and based on a realization of the symbol as a transfer function of a singular system.

Inferior

https://doi.org/10.1007/978-3-0348-9284-1Hardy space; Operator theory; Singular integral; calculus; evolution; functional analysis

溫室

978-3-0348-9978-9Birkh?user Verlag Basel 1988

貪婪地吃

https://doi.org/10.1007/978-3-642-59222-5We analyze the notions of weak and strong joint hyponormality for commuting pairs of operators, with an aim at understanding the gap between hyponormality and subnormality for single operators. We exhibit a commuting pair T = (T., T.) such that:

運(yùn)動(dòng)性

HEAVY

Ulrich H. Koszinowski,Hartmut HengelIn this paper we study the uniform approximation of continuous functions on compact subsets of .. by solutions of second order elliptic equations. Also we discuss the problem of existence of a continuous best approximation and the connection of the approximation problem to some isoperimetric inequalities.

預(yù)知

Model Checking Using Automata TheoryWe show that any stationary m.s. continuous Gaussian process can be generated as the output of a Linear Hamiltonian System with a suitable invariant probability measure on the phase space.

MAOIS

Costas Courcoubetis,Stavros TripakisIt is shown that the lifting to the commutant problem in dilation theory is a particular case of the general dilation theorem for semigroups without involution. Applications are given to subnormal and contraction homomorphisms.

AORTA

擔(dān)憂(yōu)

Ethics of Science and Technology AssessmentAn analogue of Hartman’s theorem on completely continuous Hankel operators is proved for Hankel operators with random symbols.