Results 61 to 70 of about 57,339 (208)
Pólya's conjecture for Dirichlet eigenvalues of annuli
Abstract We prove Pólya's conjecture for the eigenvalues of the Dirichlet Laplacian on annular domains. Our approach builds upon and extends the methods we previously developed for disks and balls. It combines variational bounds, estimates of Bessel phase functions, refined lattice point counting techniques and a rigorous computer‐assisted analysis. As
Nikolay Filonov +3 more
wiley +1 more source
Interval‐valued Caputo–Fabrizio fractional derivative in continuous programming
Abstract This study investigates a novel class of variational programming problems characterized by fractional interval values, formulated under the Caputo–Fabrizio fractional derivative with an exponential kernel. Invex and generalized invex functions are used to discuss the Mond–Weir‐type dual problem for the considered variational problem.
Krishna Kummari +2 more
wiley +1 more source
The 30 GeV dimuon excess at ALEPH [PDF]
A simple variation of a two-Higgs-doublet model is proposed to describe the 30 GeV dimuon excess reported by Heister in his reanalysis of Z → ¯bb events in ALEPH data taken in 1992-95.
Lane, Kenneth, Pritchett, Lukas
core +1 more source
The architecture of the closed‐loop Markovian jump systems. ABSTRACT This paper addresses the issue of alarm‐based hybrid fault‐tolerant control for Markovian jump systems with uncertainty, in which there may exist actuator and structural failures. Through the integration of passive, observer‐based active, and adaptive fault‐tolerant control techniques,
Yufei Xu, Huiyu Li, Yu Chen
wiley +1 more source
ABSTRACT Causal variable selection in time‐varying treatment settings is challenging due to evolving confounding effects. Existing methods mainly focus on time‐fixed exposures and are not directly applicable to time‐varying scenarios. We propose a novel two‐step procedure for variable selection when modeling the treatment probability at each time point.
Mireille E. Schnitzer +7 more
wiley +1 more source
Search for charged Higgs bosons in e+e- collisions at energies up to sqrt(s) = 209GeV [PDF]
A search for charged Higgs bosons produced in pairs is performed with data collected at centre-of-mass energies ranging from 189 to 209 GeV by ALEPH at LEP, corresponding to a total luminosity of 629 invpb.
Collaboration, ALEPH
core
Studies of b-quark fragmentation [PDF]
I will review new studies of b-quark fragmentation performed at the Z peak by ALEPH and SLD. An improved sensitivity to distinguish between fragmentation model and more accurate measurements of the mean b-hadron scaled energy have been obtained.Comment ...
Ciulli, V.
core +1 more source
Where Mathematical Symbols Come From
Abstract There is a sense in which the symbols used in mathematical expressions and formulas are arbitrary. After all, arithmetic would be no different if we would replace the symbols ‘+$+$’ or ‘8’ by different symbols. Nevertheless, the shape of many mathematical symbols is in fact well motivated in practice.
Dirk Schlimm
wiley +1 more source
Una obra frecuentemente consultada por Jorge Luis Borges fue Matemáticas e imaginación, de E. Kasner y J. Newman, en la que se discute la teoría de los conjuntos (que es la rama de la matemática que estudia la relación entre conjuntos), propuesta por ...
Jorge Sagastume
doaj
Reseña El diario azul de Carlota. Gemma Lienas, Alba Sanchís. Barcelona: El Aleph, 2006.
Adelina Rodríguez Pacios
doaj +1 more source

