Results 1 to 10 of about 19,025 (294)
G-Convergence of Dirac Operators [PDF]
Journal of Function Spaces and Applications, 2012 We consider the linear Dirac operator with a (−1)-homogeneous locally periodic potential that varies with respect to a small parameter. Using the notation of G-convergence for positive self-adjoint operators in Hilbert spaces we prove G-compactness in ...
Hasan Almanasreh, Nils Svanstedt
doaj +4 more sources
Spectrum of a family of operators [PDF]
Surveys in Mathematics and its Applications, 2011 Having as start point the classic definitions of resolvent set and spectrum of a linear bounded operator on a Banach space, we introduce the resolvent set and spectrum of a family of linear bounded operators on a Banach space.
Simona Macovei
doaj +3 more sources
On the Thermodynamics of Particles Obeying Monotone Statistics [PDF]
Entropy, 2023 The aim of the present paper is to provide a preliminary investigation of the thermodynamics of particles obeying monotone statistics. To render the potential physical applications realistic, we propose a modified scheme called block-monotone, based on a
Fabio Ciolli +2 more
doaj +2 more sources
An Introduction to Spectral Theory of Bounded Linear Operators in Intuitionistic Fuzzy Pseudo Normed Linear Space [PDF]
Sahand Communications in Mathematical Analysis, 2022 In this paper, focus is on the study of spectrum and the spectral properties of bounded linear operators in intuitionistic fuzzy pseudo normed linear spaces(IFPNLS).
Bivas Dinda +2 more
doaj +1 more source
A note on Hausdorff convergence of pseudospectra [PDF]
Opuscula Mathematica, 2022 For a bounded linear operator on a Banach space, we study approximation of the spectrum and pseudospectra in the Hausdorff distance. We give sufficient and necessary conditions in terms of pointwise convergence of appropriate spectral quantities.
Marko Lindner, Dennis Schmeckpeper
doaj +1 more source
Spatially Resolved Spectrum of the Vela PWN [PDF]
Symposium - International Astronomical Union, 2004 A series of 13 Chandra observations has provided the deepest images of the Vela PWN yet available. In addition to the fine structure of the inner PWN features, a much larger and fainter asymmetric X-ray nebula emerges in the summed images. The shape of this outer PWN is similar to that of the radio PWN.
Kargaltsev, Oleg, Pavlov, George
openaire +2 more sources
Mathematics, 2023 We define the notion of a point interaction for general non-self-adjoint elliptic operators in planar domains. We show that such operators can be approximated in a geometric way by cutting out a small cavity around the point, at which the interaction is ...
Denis Ivanovich Borisov
doaj +1 more source
Spatially Resolved Dynamic Eigenmode Spectrum of Co Rings [PDF]
Physical Review Letters, 2006 The spatially resolved eigenmode spectrum of micrometer-sized Co ring elements has been determined by means of combined vector network analyzer ferromagnetic resonance and time resolved magneto-optic Kerr effect measurements. Up to 5 resonant eigenmodes were observed in the frequency range from 45 MHz to 20 GHz as a function of an external magnetic ...
Neudecker, Ingo +8 more
openaire +3 more sources
Boundary Value Problems, 2020 In this paper we consider singular Sturm–Liouville problems with eigenparameter dependent boundary conditions and two singular endpoints. The spectrum of such problems can be approximated by those of the inherited restriction operators constructed.
Maozhu Zhang, Kun Li, Hongxiang Song
doaj +1 more source
Resolving the Peak of the Black Hole Mass Spectrum
The Astrophysical Journal, 2022 Abstract Gravitational-wave (GW) detections of binary black hole (BH) mergers have begun to sample the cosmic BH mass distribution. The evolution of single stellar cores predicts a gap in the BH mass distribution due to pair-instability supernovae (PISNe).
Farag, Ebraheem +4 more
openaire +3 more sources