Results 11 to 20 of about 6,490,412 (293)
A Spectral Theory for Tensors [PDF]
Annales de la Faculté des sciences de Toulouse : Mathématiques, 2014 In this paper we propose a general spectral theory for tensors. Our proposed factorization decomposes a tensor into a product of orthogonal and scaling tensors. At the same time, our factorization yields an expansion of a tensor as a summation of outer products of lower order tensors.
Gnang, Edinah K. +2 more
openaire +2 more sources
Eigenvalues asymptotics for Stark operators [PDF]
E-Journal of Analysis and Applied Mathematics, 2019 We give the eigenvalues asymptotics for the Stark operator of the form $\displaystyle-\Delta+Fx$, $F>0$ on $\displaystyle\mathrm{L}^2([0,d])$. This is given in the case when $F$ is small enough or sufficiently large.
Hatem Najar, Monia Raissi
doaj +1 more source
On spectral theory and convexity [PDF]
Transactions of the American Mathematical Society, 1981 A compact convex set K K in a locally convex algebra is said to be a spectral carrier if, for all x x , y ∈ K y \in K , we have x y = y x ∈ K xy = yx \in K and x + y − x
Fong, C. K., Lam, Louisa
openaire +1 more source
On relaxation processes in a completely ionized plasma
East European Journal of Physics, 2020 Relaxation of the electron energy and momentum densities is investigated in spatially uniform states of completely ionized plasma in the presence of small constant and spatially homogeneous external electric field.
Alexander I. Sokolovsky +2 more
doaj +1 more source
V. P. SHESTOPALOV AND HIS SCIENTIFIC SCHOOL: FROM QUASISTATICS TO QUASIOPTICS (to mark V.P.'s birth centenary) [PDF]
Radio Physics and Radio Astronomy, 2023 The paper is dedicated to the memory of V.P. Shestopalov, an outstanding scientist known for his great contributions to radio physics, electronics, theoretical and mathematical physics.
P. M. Melezhik +2 more
doaj +1 more source
Theory and assessment of an improved power spectral density estimator [PDF]
, 1990 This thesis is concerned with the processing of time domain signals received by a single sensor. An example of such signals is the radar return, which is used in one way or another to estimate the power spectral density a frequency representation of ...
Ali, Ali Abbas
core +3 more sources
Spectral Bayesian network theory
Linear Algebra and its Applications, 2023 22 pages, 6 ...
Luke Duttweiler +2 more
openaire +4 more sources
Small oscillations of an ideal liquid contained in a vessel closed by an elastic circular plate, in uniform rotation [PDF]
Theoretical and Applied Mechanics, 2017 The problem of the small oscillations of an ideal liquid contained in a vessel in uniform rotation has been studied by Kopachevskii and Krein in the case of an entirely rigid vessel [3].
Essaouini Hilal +2 more
doaj +1 more source
Spectral theory of the thermal Hamiltonian: 1D case
, 2021 © 2021 European Mathematical Society.In 1964 J. M. Luttinger introduced a model for the quantum thermal transport. In this paper we study the spectral theory of the Hamiltonian operator associated with Luttinger's model, with a special focus at the one ...
Lenz V., De Nittis G.
core +1 more source
The Bourguignon Laplacian and Harmonic Symmetric Bilinear Forms
Mathematics, 2020 In this paper, we study the kernel and spectral properties of the Bourguignon Laplacian on a closed Riemannian manifold, which acts on the space of symmetric bilinear forms (considered as one-forms with values in the cotangent bundle of this manifold ...
Vladimir Rovenski +2 more
doaj +1 more source