Results 41 to 50 of about 458 (65)

A family of commuting contraction semigroups on l1(N){l}^{1}\left({\mathbb{N}}) and l∞(N){l}^{\infty }\left({\mathbb{N}})

open access: yesOpen Mathematics
A family of commuting contraction semigroups (Pn(t))n∈N{\left({P}_{n}\left(t))}_{n\in {\mathbb{N}}}, defined on l1(N){l}^{1}\left({\mathbb{N}}), is presented. For this family, the product semigroup ∏n=1∞Pn(t){\prod }_{n=1}^{\infty }{P}_{n}\left(t) exists
Nieznaj Ernest
doaj   +1 more source

Existence and nonexistence of hypercyclic semigroups [PDF]

open access: yes, 2007
In these notes we provide a new proof of the existence of a hypercyclic uniformly continuous semigroup of operators on any separable infinitedimensional Banach space that is very different from –and considerably shorter than– the one recently given by ...
Bernal González, Luis   +1 more
core  

Uniqueness of a pre-generator for $C_0$-semigroup on a general locally convex vector space [PDF]

open access: yes, 2006
The main purpose is to generalize a theorem of Arendt about uniqueness of $C_0$-semigroups from Banach space setting to the general locally convex vector spaces, more precisely, we show that cores are the only domains of uniqueness for $C_0$-semigroups ...
Lemle, Ludovic Dan, Wu, Liming
core   +2 more sources

$L^\infty$-uniqueness of Schr\"odinger operators restricted in an open domain

open access: yes, 2008
Consider the Schr\"odinger operator ${\cal A}=-\frac{\Delta}{2}+V$ acting on space $C_0^\infty(D)$, where $D$ is an open domain in $\R^d$. The main purpose of this paper is to present the $L^\infty(D,dx)$-uniqueness for Schr\"odinger operators which is ...
Lemle, Ludovic Dan
core   +1 more source

Perron-Frobenius and Krein-Rutman theorems for tangentially positive operators

open access: yesOpen Mathematics, 2012
Kanigowski Adam, Kryszewski Wojciech
doaj   +1 more source

Concave iteration semigroups of linear continuous set-valued functions

open access: yesOpen Mathematics, 2012
Smajdor Andrzej, Smajdor Wilhelmina
doaj   +1 more source

THE HILLE–YOSIDA THEOREM FOR LOCAL CONVOLUTED SEMIGROUPS

open access: yesProceedings of the Edinburgh Mathematical Society, 2003
V. Keyantuo, Claus Müller, P. Vieten
semanticscholar   +1 more source

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