-local unconditional structure of Banach spaces
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Displaying 1 – 20 of 131
symmetric Schrödinger operators: reality of the perturbed eigenvalues.
Caliceti, Emanuela, Cannata, Francesco, Graffi, Sandro (2010)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
P-adic semi-Fredholm operators and measures of non-compactness.
C. Pérez-García (1990)
Extracta Mathematicae
Paley-Wiener Type Theorems by Transmutations.
M.Z. Nashed, A. Boumenir (2001)
The journal of Fourier analysis and applications [[Elektronische Ressource]]
Parallel methods in image recovery by projections onto convex sets
Gilbert Crombez (1992)
Czechoslovak Mathematical Journal
Parametrization and Schur algorithm for the integral representation of Hankel forms in T-square
P. Alegría (1992)
Collectanea Mathematica
Partial inner product spaces of entire functions
J.-P. Antoine, M. Vause (1981)
Annales de l'I.H.P. Physique théorique
Partial isometries and EP elements in rings with involution.
Mosić, Dijana, Djordjević, Dragan S. (2009)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Partitions of spectral sets
W. Mlak (1972)
Annales Polonici Mathematici
Periodic Schrödinger Operators with (Non-Periodic) Magnetic and Electric Potentials.
Rainer Hempel (1984)
Manuscripta mathematica
Periodic solutions of partial differential equations with hysteresis
Krejčí, Pavel (1986)
Equadiff 6
Periodic solutions to abstract differential equations
Ivan Straškraba, Otto Vejvoda (1973)
Czechoslovak Mathematical Journal
Perron root of a convex combination of a positive kernel and its adjoint
Ivo Marek (1978)
Acta Universitatis Carolinae. Mathematica et Physica
Perron-Frobenius and Krein-Rutman theorems for tangentially positive operators
Adam Kanigowski, Wojciech Kryszewski (2012)
Open Mathematics
We study several aspects of a generalized Perron-Frobenius and Krein-Rutman theorems concerning spectral properties of a (possibly unbounded) linear operator on a cone in a Banach space. The operator is subject to the so-called tangency or weak range assumptions implying the resolvent invariance of the cone. The further assumptions rely on relations between the spectral and essential spectral bounds of the operator. In general we do not assume that the cone induces the Banach lattice structure into...
Pertubation of Operators and Applications to Frame Theory.
Peter G. Cazassa, Ole Christensen (1997)
The journal of Fourier analysis and applications [[Elektronische Ressource]]
Perturbation and spectral discontinuity in Banach algebras
Rudi Brits (2011)
Studia Mathematica
We extend an example of B. Aupetit, which illustrates spectral discontinuity for operators on an infinite-dimensional separable Hilbert space, to a general spectral discontinuity result in abstract Banach algebras. This can then be used to show that given any Banach algebra, Y, one may adjoin to Y a non-commutative inessential ideal, I, so that in the resulting algebra, A, the following holds: To each x ∈ Y whose spectrum separates the plane there corresponds a perturbation of x, of the form z =...
Perturbation Classes of Semi-Fredholm Operators.
Lutz Weis (1981)
Mathematische Zeitschrift
Perturbation de générateurs infinitésimaux du type «changement de temps»
Gunter Lumer (1973)
Annales de l'institut Fourier
On obtient un théorème général concernant la perturbation multiplicative par un opérateur (linéaire borné, mais pas forcément d’inverse borné), du générateur d’un semi-groupe fortement continu sur un espace de Banach. On en déduit un résultat intimement lié au changement de temps dans les processus de Markov, qui étend un théorème de Dorroh (et résout par l’affirmative la seule situation qui restait en doute dans le contexte du théorème de Dorroh cité). Comme exemple d’autres possibilités d’application,...
Perturbation des résolvantes et des semi-groupes par une mesure de Radon positive.
H. Maagli, M. Selmi (1990)
Mathematische Zeitschrift
Perturbation of a Fredholm complex by inessential operators.
Gleason, Jim (2001)
Georgian Mathematical Journal
Currently displaying 1 – 20 of 131
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