Results 61 to 70 of about 53,909 (198)

Gaussian Aggregation Operators and Applications to Intuitionistic Fuzzy Classification

Journal of Classification
In this study, we introduce novel aggregation operators for intuitionistic fuzzy values based on the Gaussian error function. We define the Gaussian triangular-norm and triangular-conorm operations using an Archimedean framework and propose the Gaussian ...
M. Ünver
semanticscholar   +1 more source

On the quasi-Fredholm and Saphar spectrum of strongly continuous Cosine operator function [PDF]

Moroccan Journal of Pure and Applied Analysis, 2020
Abstract Let (C(t))t ∈𝕉 be a strongly continuous cosine family and A be its infinitesimal generator. In this work, we prove that, if C(t) – coshλt is Saphar (resp. quasi-Fredholm) operator and λt /∉iπ𝕑, then A – λ2 is also Saphar (resp. quasi-Fredholm) operator.
openaire   +3 more sources

Existence, regularity and representation of solutions of time fractional wave equations

Electronic Journal of Differential Equations, 2017
We study the solvability of the fractional order inhomogeneous Cauchy problem $$ \mathbb{D}_t^\alpha u(t)=Au(t)+f(t), \quad t>0 ...
Valentin Keyantuo, Carlos Lizama, Mahamadi Warma   +2 more
doaj  

Parity realization in Vector-like theories from Fermion Bilinears

, 2008
We reconsider in this paper the old aim of trying to understand if the observed realization of discrete symmetries as Parity or CP in the QCD vacuum can be satisfied from first principles. We show how under the appropriate assumptions implicitely done by
A Vaquero, G. Di Carlo, See for instance R.D. Peccei, V Azcoiti   +3 more
core   +1 more source

Time evolution of condensed state of interacting bosons with reduced number fluctuation in a leaky box

, 1999
We study the time evolution of the Bose-Einstein condensate of interacting bosons confined in a leaky box, when its number fluctuation is initially (t=0) suppressed. We take account of quantum fluctuations of all modes, including k = 0.
A. Shimizu, A.J. Leggett, Akira Shimizu, C. C. Bradley, C. N. Yang, C.W. Gardiner, D. Forster, E. Fortin, E. G. Syskakis, E.M. Lifshitz, J. Javanainen, J. P. Wolfe, J. Ruostekoski, Jun-ichi Inoue, K. B. Davis, L. Mandel, L.V. Butov, M. D. Girardeau, M. Girardeau, M. H. Anderson, M. Naraschewski, M. R. Andrews, N. Goldenfeld, O. Penrose, P. Sokol, V. N. Popov, Y. Castin, Y. Castin   +27 more
core   +1 more source

Bosonization and phase Diagram of the one-dimensional t-J model

, 2002
We present an analytic study of the phase diagram of the one-dimensional t-J model and a couple of its cousins. To deal with the interactions induced by the no double occupancy constraints, we introduce a deformation of the Hubbard operators.
A. Luther, B. Sutherland, C. K. Lai, C. N. Yang, C. N. Yang, D. Batista, D. M. Haldane, E. Dagotta, E. Dagotto, E. Dagotto, E. H. Lieb, E. H. Lieb, F. C. Zhang, F. C. Zhang, F. V. Kusmartsev, F. Wilczek, F. Wilczek, Guang-Hong Chen, H. A. Bethe, H. H. Lin, H. H. Lin, H. Mayaffre, J. H. Schön, J. Hubbard, L. Balents, M. Ogata, N. E. Bonsteel, N. Read, P. A. Bares, P. B. Wiegmann, P. Coleman, P. Coleman, P. Jordan, P. Schlottmann, P. W. Anderson, V. M. Yakovenko, Y.-S. Wu, Y.-S. Wu, Yong-Shi Wu   +38 more
core   +2 more sources

A variational approach to strongly damped wave equations

, 2007
We discuss a Hilbert space method that allows to prove analytical well-posedness of a class of linear strongly damped wave equations. The main technical tool is a perturbation lemma for sesquilinear forms, which seems to be new.
A. Bátkai, A. Lunardi, D. Mugnolo, E. Heinz, E.M. Ouhabaz, F. Bucci, F. Neubrander, G. Chen, H. Engler, I. Lasiecka, J. Avrin, J. Lopez-Gomez, J.T. Sandefur, M. Crouzeix, M. Haase, M.G. Krein, M.G. Krein, Ph. Clément, R. Chill, R. Dautray, S. Chen, S. Chen, S.Z. Huang, V. Belleri   +23 more
core   +2 more sources

Characterizations of almost periodic strongly continuous cosine operator functions

Journal of Mathematical Analysis and Applications, 1986
The almost periodic and uniformly almost periodic cosine operator functions are characterized in terms of their infinitesimal generator; the results extend those due to \textit{H. Bart} and \textit{S. Goldberg} [Math. Ann. 236, 105-116 (1978; Zbl 0365.47019)] for the case of semi- groups of class \(c_ 0\).
openaire   +2 more sources

CycloneWind: A Dynamics-Constrained Deep Learning Model for Tropical Cyclone Wind Field Downscaling Using Satellite Observations

Remote Sensing
Tropical cyclones (TCs) rank among the most destructive natural hazards globally, with core damaging potential originating from regions of intense wind shear and steep wind speed gradients within the eyewall and spiral rainbands.
Yuxiang Hu, Kefeng Deng, Qingguo Su, Di Zhang, Xinjie Shi, Kaijun Ren   +5 more
doaj   +1 more source

Riemann-Liouville Fractional Cosine Functions

, 2015
In this paper, a new notion, named Riemann-Liouville fractional cosine function is presented. It is proved that a Riemann-Liouville $\alpha$-order fractional cosine function is equivalent to Riemann-Liouville $\alpha$-order fractional resolvents ...
Mei, Zhan-Dong, Peng, Ji-Gen
core   +1 more source