Results 1 to 10 of about 89,419 (201)

A Study on Fuzzy Order Bounded Linear Operators in Fuzzy Riesz Spaces [PDF]

open access: yesMathematics, 2021
This paper aims to study fuzzy order bounded linear operators between two fuzzy Riesz spaces. Two lattice operations are defined to make the set of all bounded linear operators as a fuzzy Riesz space when the codomain is fuzzy Dedekind complete. As a special case, separation property in fuzzy order dual is studied.
Juan L. G. Guirao   +3 more
openaire   +2 more sources

On linear operators on ordered banach spaces [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1983
The order structure of the space of all continuous linear operators on an ordered Banach space is studied. The main topic is the Robinson property, that is, the norm of a positive linear operator is attained on the positive unit cone.
openaire   +1 more source

Stabilizing Solution for a Discrete-Time Modified Algebraic Riccati Equation in Infinite Dimensions

open access: yesDiscrete Dynamics in Nature and Society, 2015
We provide necessary and sufficient conditions for the existence of stabilizing solutions for a class of modified algebraic discrete-time Riccati equations (MAREs) defined on ordered Banach spaces of sequences of linear and bounded operators. These MAREs
Viorica Mariela Ungureanu
doaj   +1 more source

Operator Hydrodynamics, OTOCs, and Entanglement Growth in Systems without Conservation Laws

open access: yesPhysical Review X, 2018
Thermalization and scrambling are the subject of much recent study from the perspective of many-body quantum systems with locally bounded Hilbert spaces (“spin chains”), quantum field theory, and holography.
C. W. von Keyserlingk   +3 more
doaj   +1 more source

The order of neutrality for linear operators on inner product spaces

open access: yesLinear Algebra and its Applications, 1997
On a complex vector space \({\mathcal H}\) an inner product \([\cdot,\cdot]\) and a symmetric linear operator \(A\) are defined in a usual way. A subspace \({\mathcal S}\subseteq{\mathcal H}\) is said to be neutral if \([x,y]= 0\) for all \(x,y\in{\mathcal S}\). Earlier, Lancaster et al.
Lancaster, P., Markus, A.S., Zizler, P.
openaire   +2 more sources

A simple approach to the Perron-Frobenius theory for positive operators on general partially-ordered finite-dimensional linear spaces [PDF]

open access: yesMathematics of Computation, 1973
This paper presents simple proofs of the principal results of the Perron-Frobenius theory for linear mappings on finite-dimensional spaces which are nonnegative relative to a general partial ordering on the space. The principal tool for these proofs is an application of the theory of norms in finite dimensions to the study of order inequalities of the ...
Rheinboldt, Werner C.   +1 more
openaire   +1 more source

Remarks on Duality in Graph Spaces of First‐Order Linear Operators [PDF]

open access: yesPAMM, 2006
AbstractGraph spaces provide a setting alternative to Sobolev spaces and BV spaces, which is suitable for the analysis of first‐order linear boundary value problems such as Friedrichs systems. Besides investigations of the well‐posedness of the continuous problem there is also an increasing interest in the error analysis of finite element methods ...
openaire   +2 more sources

The Energy Operator for a Model with a Multiparametric Infinite Statistics [PDF]

open access: yes, 2003
In this paper we consider energy operator (a free Hamiltonian), in the second-quantized approach, for the multiparameter quon algebras: $a_{i}a_{j}^{\dagger}-q_{ij}a_{j}^{\dagger}a_{i} = \delta_{ij}, i,j\in I$ with $(q_{ij})_{i,j\in I}$ any hermitian ...
Ante Perica   +13 more
core   +1 more source

HYERS-ULAM STABILITY OF FIRST ORDER LINEAR DIFFERENCE OPERATORS ON BANACH SPACE

open access: yesJOURNAL OF ADVANCES IN MATHEMATICS, 2018
In this work, the Hyers-Ulam stability of first order linear difference operator TP defined by (Tpu)(n) = ∆u(n) - p(n)u(n); is studied on the Banach space X = l∞, where p(n) is a sequence of reals.
Arun Kumar Tripathy, Pragnya Senapati
openaire   +2 more sources

Calculus, continuity and global wave-front properties for Fourier integral operators on $\mathbf{R}^d$

open access: yes, 2014
We illustrate the composition properties for an extended family of SG Fourier integral operators. We prove continuity results for operators in this class with respect to $L^2$ and weighted modulation spaces, and discuss continuity on $\mathscr{S ...
Coriasco, S., Johansson, K., Toft, J.
core   +1 more source

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