Results 61 to 70 of about 1,119,199 (236)

Beyond islands: a free probabilistic approach

open access: yesJournal of High Energy Physics, 2023
We give a free probabilistic proposal to compute the fine-grained radiation entropy for an arbitrary bulk radiation state, in the context of the Penington-Shenker-Stanford-Yang (PSSY) model where the gravitational path integral can be implemented with ...
Jinzhao Wang
doaj   +1 more source

STSM: Spatio-Temporal Shift Module for Efficient Action Recognition

open access: yesMathematics, 2022
The modeling, computational complexity, and accuracy of spatio-temporal models are the three major foci in the field of video action recognition.
Zhaoqilin Yang, Gaoyun An, Ruichen Zhang
doaj   +1 more source

Interaction of Dirac δ$$ \delta $$‐Waves in the Inviscid Levine and Sleeman Chemotaxis Model

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This article investigates interactions of δ$$ \delta $$‐shock waves in the inviscid Levine and Sleeman chemotaxis model ut−λ(uv)x=0$$ {u}_t-\lambda {(uv)}_x=0 $$, vt−ux=0$$ {v}_t-{u}_x=0 $$. The analysis employs a distributional product and a solution concept that extends the classical solution concept.
Adelino Paiva
wiley   +1 more source

THE ANALOGUE OF WEIGHTED GROUP ALGEBRA FOR SEMITOPOLOGICAL SEMIGROUPS [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1995
In [1,2,3], A. C. Baker and J.W. Baker studied the subspace Ma(S) of the convolution measure algebra M, (S) of a locally compact semigroup. H. Dzinotyiweyi in [5,7] considers an analogous measure space on a large class of C-distinguished topological ...
doaj  

Change of Scale Formulas for Wiener Integrals Related to Fourier-Feynman Transform and Convolution

open access: yesJournal of Function Spaces, 2014
Cameron and Storvick discovered change of scale formulas for Wiener integrals of functionals in Banach algebra S on classical Wiener space. Yoo and Skoug extended these results for functionals in the Fresnel class F(B) and in a generalized Fresnel class ...
Bong Jin Kim, Byoung Soo Kim, Il Yoo
doaj   +1 more source

$L^p$-Conjecture on Hypergroups [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
In this paper, we study $L^p$-conjecture on locally compact hypergroups and by some technical proofs we give some sufficient and necessary conditions  for a weighted Lebesgue space  $L^p(K,w)$ to be a convolution Banach algebra, where ...
Seyyed Mohammad Tabatabaie   +1 more
doaj   +1 more source

Convolutional Filtering With RKHS Algebras

open access: yesIEEE Transactions on Signal Processing
In this paper, we develop a generalized theory of convolutional signal processing and neural networks for Reproducing Kernel Hilbert Spaces (RKHS). Leveraging the theory of algebraic signal processing (ASP), we show that any RKHS allows the formal definition of multiple algebraic convolutional models.
Alejandro Parada-Mayorga   +3 more
openaire   +2 more sources

Topological centres of weighted convolution algebras [PDF]

open access: yesJournal of Functional Analysis, 2009
This paper constitutes the continuation of the authors' investigation of topological centres of convolution algebras started in [J. Funct. Anal. 250, No. 1, 144--166 (2007; Zbl 1125.43002)]. Let \(G\) be a non-compact locally compact group with a continuous submultiplicative weight function \(\omega\) such that \(\omega(e_G) = 1\) and \(\omega\) is ...
Filali Mahmoud, Salmi Pekka
openaire   +3 more sources

Optimizing Selective RF Pulses for Enhanced Signal Stability in Turbo Spin Echo Using a Differentiable Extended Phase Graph Model

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To improve slice profile consistency across echo trains in turbo spin echo (TSE) imaging, thereby reducing image blurring and increasing the accuracy of multi echo spin echo T2$$ {T}_2 $$ mapping. Methods Excitation and refocusing RF pulses were optimized for TSE using a differentiable extended phase graph model that incorporates the ...
Madison M. Augelli   +3 more
wiley   +1 more source

Functional calculus for generators of analytic semigroups of operators

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
We construct a functional calculus for generators of one-parameter bounded analytic semigroups of operators on a Banach space. The calculus symbol class consist of the Laplace image of the convolution algebra $\cal S'_+$ of tempered distributions with ...
O. V. Lopushansky, S. V. Sharyn
doaj   +1 more source

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