Results 21 to 30 of about 2,277,693 (344)
Regular Expressions with Lookahead [PDF]
Journal of Universal Computer Science, 2021 This paper investigates regular expressions which in addition to the standard operators of union, concatenation, and Kleene star, have lookaheads. We show how to translate regular expressions with lookaheads (REwLA) to equivalent Boolean automata having ...
Martin Berglund +2 more
doaj +3 more sources
Riesz completions of some spaces of regular operators [PDF]
Indagationes mathematicaeWe describe the Riesz completion (in the sense of van Haandel) of some spaces of regular operators as explicitly identified subspaces of the regular operators into larger range ...
A. W. Wickstead
semanticscholar +1 more source
Transactions of the American Mathematical Society, 1995 We show that for a wide class of operators T T on a Banach space, including the class of decomposable operators, the sequence { ‖ T
openaire +2 more sources
Regular Operator Equations: Conditions for Regularity [PDF]
Proceedings of the American Mathematical Society, 1982 Regular operator equations are causal equations admitting unique solutions and have the property that all of their limiting equations along solutions admit unique solutions. Sufficient conditions which guarantee that an operator equation x = T x x = Tx is regular are given in case T T is
openaire +2 more sources
About Riesz theory of compact operators
Bibechana, 2012 In this paper, it is shown that every compact operators are bounded and continuous. The bounded and continuous properties of an operator is sufficient for a Riesz operator.
Nagendra Pd Sah
doaj +3 more sources
Sums of regular self-adjoint operators in Hilbert-C⁎-modules [PDF]
Journal of Mathematical Analysis and Applications, 2018 We introduce a notion of weak anticommutativity for a pair ( S , T ) of self-adjoint regular operators in a Hilbert C ⁎ -module E. We prove that the sum S + T of such pairs is self-adjoint and regular on the intersection of their domains.
M. Lesch, B. Mesland
semanticscholar +1 more source
Orthogonally Biadditive Operators
Journal of Function Spaces, 2021 In this article, we introduce and study a new class of operators defined on a Cartesian product of ideal spaces of measurable functions. We use the general approach of the theory of vector lattices.
Nonna Dzhusoeva +2 more
doaj +1 more source
Regular Sequences of Quasi-Nonexpansive Operators and Their Applications [PDF]
SIAM Journal on Optimization, 2017 In this paper we present a systematic study of regular sequences of quasi-nonexpansive operators in Hilbert space. We are interested, in particular, in weakly, boundedly and linearly regular sequences of operators. We show that the type of the regularity
A. Cegielski, S. Reich, Rafał Zalas
semanticscholar +1 more source
A note on the relationship between three classes of operators on Riesz spaces
Annals of the West University of Timisoara: Mathematics and Computer Science, 2019 Following several papers in the prior literature, we study the relationship between order bounded operators, topologically bounded operators and topologically continuous operators.
Hong Liang
doaj +1 more source
Interpolated scales of approximation spaces for regular elliptic operators on compact manifolds
Karpatsʹkì Matematičnì Publìkacìï, 2014 We define the interpolated scales of approximation spaces, generated by regular elliptic operators on compact manifolds. The appropriate Bernstein-Jackson inequalities and application to spectral approximations of regular elliptic operators are ...
M.I. Dmytryshyn
doaj +1 more source