Results 21 to 30 of about 1,026 (231)
A simple approach to the Perron-Frobenius theory for positive operators on general partially-ordered
, 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.
W. Rheinboldt, J. Vandergraft
semanticscholar +2 more sources
Operator Hydrodynamics, OTOCs, and Entanglement Growth in Systems without Conservation Laws
Physical 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
Smarandache semirings, semifields, and semivector spaces [PDF]
, 2002 Smarandache notions, which can be undoubtedly characterized as interesting mathematics, has the capacity of being utilized to analyse, study and introduce, naturally, the concepts of several structures by means of extension or identification as a ...
Vasantha, Kandasamy
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Riesz representation theorems for positive linear operators
, 2021 We generalise the Riesz representation theorems for positive linear functionals on $\mathrm{C}_{\mathrm c}(X)$ and $\mathrm{C}_{\mathrm 0}(X)$, where $X$ is a locally compact Hausdorff space, to positive linear operators from these spaces into a ...
Jiang, X. +3 more
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The order of neutrality for linear operators on inner product spaces
Linear 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
Idempotent structures in optimization [PDF]
, 2001 Consider the set A = R ∪ {+∞} with the binary operations o1 = max and o2 = + and denote by An the set of vectors v = (v1,...,vn) with entries in A. Let the generalised sum u o1 v of two vectors denote the vector with entries uj o1 vj , and the product
Kolokoltsov, V. N. (Vasiliĭ Nikitich)
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The Riesz–Kantorovich formula for lexicographically ordered spaces
Positivity (Dordrecht), 2017 If L and M are partially ordered vector spaces, then one can consider regular linear maps from L to M, i.e. linear maps which can be written as the difference of two positive linear maps.
W. Schouten
semanticscholar +1 more source
, 2014 We show that the existence of a surjective isometry (which is merely a distance preserving map) between the unitary groups of unital C*-algebras implies the existence of a Jordan *-isomorphism between the algebras.
Hatori, Osamu, Molnár, Lajos
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Eventually positive elements in ordered Banach algebras
, 2023 summary:In ordered Banach algebras, we introduce eventually and asymptotically positive elements. We give conditions for the following spectral properties: the spectral radius belongs to the spectrum (Perron--Frobenius property); the spectral radius is ...
Herzog, Gerd, Kunstmann, Peer C.
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Fixed point index computations for multivalued mapping and application to the problem of positive eigenvalues in ordered space [PDF]
, 2022 [EN] In this paper, we present some results on fixed point index calculations for multivalued mappings and apply them to prove the existence of solutions to multivalued equations in ordered space, under flexible conditions for the positive eigenvalue ...
Tri, Vo Viet
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