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Multiple Perron-Frobenius operators [PDF]

open access: yesPhysical Review E, 2001
A cycle expansion technique for discrete sums of several PF operators, similar to the one used in standard classical dynamical zeta-function formalism is constructed. It is shown that the corresponding expansion coefficients show an interesting universal behavior, which illustrates the details of the interference between the particlar mappings entering
openaire   +5 more sources

On th-Order Slant Weighted Toeplitz Operator

open access: yesThe Scientific World Journal, 2013
Let be a sequence of positive numbers with , when and when . A th-order slant weighted Toeplitz operator on is given by , where is the multiplication on and is an operator on given by , being the orthonormal basis for . In this paper, we define
S. C. Arora, Ritu Kathuria
doaj   +1 more source

Cyclic vectors for multiplication operators.

open access: yesMichigan Mathematical Journal, 1988
If \(E\) is a complex topological vector space and \(T\) a continuous linear transformation on \(E\), a vector \(x\in E\) is a cyclic vector for \(T\) if \(\{p(T)x: p\) a polynomial\(\}\) is dense in \(E\). If \(\mu\) is a compactly supported Borel measure on \(\mathbb C\), let \(X\) be the closed unit ball of \(L^{\infty}(\mu)\) and let \(X_ p\) be ...
openaire   +3 more sources

Continuity of multiplication in operator algebras [PDF]

open access: yesProceedings of the American Mathematical Society, 1955
Parts of Banach algebra theory have been generalized recently [2; 1 ] to multiplicatively convex topological algebras. An important class of examples of Banach algebras is the class of subalgebras of the algebra of continuous linear transformations on a Banach space.
openaire   +1 more source

A Note on Multiplication and Composition Operators in Lorentz Spaces [PDF]

open access: gold, 2012
Eddy Kwessi   +3 more
openalex   +1 more source

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