Results 21 to 30 of about 1,702 (261)

Eventually positive elements in ordered Banach algebras [PDF]

open access: yes, 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.
core   +1 more source

On the Kronecker problem and partially ordered sets with involution [PDF]

open access: yes, 2023
Consideramos el clásico problema de Kronecker sobre dos operadores lineales entre dos espacios vectoriales de dimensión finita y presentamos una nueva solución corta usando una conexión entre la versión matricial del problema de Kronecker y el problema ...
Dorado, Ivon, Medina, Gonzalo
core   +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

Ordered Linear Spaces and Extention of Positive Operators [PDF]

open access: yes, 2014
85 σ.Η παρούσα εργασία δίνει έμφαση στη θεωρία των Διατεταγμένων Γραμμικών Χώρων. Γίνεται μία διεξοδική μελέτη και παρουσίαση αλγεβρικών ιδιοτήτων των χώρων αυτών, που είναι πολύ σημαντικές και διαδραμματίζουν μείζονα ρόλο στην μελέτη προβλημάτων της ...
Παπαδάκη, Μαρία Α.   +1 more
core   +1 more source

On ordered spaces of polynomials [PDF]

open access: yes, 2000
We study quasimonotone increasing linear mappings in finite-dimensional spaces of real polynomials, ordered by the cone of nonnegative polynomials on R.
Herzog, Gerd   +3 more
core   +1 more source

Linear operators on S-graded vector spaces [PDF]

open access: yes, 2003
The aim of this paper is to formulate and study natural generalizations of the well-known classical classification problems of linear algebra. We first consider the problem about one linear operator which acts on a finite-dimensional vector space graded ...
Bondarenko, Vitalij M.
core   +1 more source

The linear quadratic regulator problem for a class of controlled systems modeled by singularly perturbed Ito differential equations [PDF]

open access: yes, 2012
Link to a related website: https://digital.library.adelaide.edu.au/dspace/bitstream/2440/77907/1/hdl_77907.pdf, Open Access via UnpaywallThis paper discusses an infinite-horizon linear quadratic (LQ) optimal control problem involving state- and control ...
Shi, Peng   +5 more
core   +2 more sources

Smarandache semirings, semifields, and semivector spaces [PDF]

open access: yes, 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
core   +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

Idempotent structures in optimization [PDF]

open access: yes, 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)
core   +1 more source

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