Results 61 to 70 of about 57,339 (208)

Pólya's conjecture for Dirichlet eigenvalues of annuli

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
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

open access: yesAsian Journal of Control, Volume 28, Issue 1, Page 497-514, January 2026.
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]

open access: yes, 2017
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

Alarm‐Based Hybrid Fault‐Tolerant Control Approach for Uncertain Markovian Jump System With Actuator Constraints and Suddenly Occurring Structural Failures

open access: yesEngineering Reports, Volume 8, Issue 1, January 2026.
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

Adaptive Sparsening and Smoothing of the Treatment Model for Longitudinal Causal Inference Using Outcome‐Adaptive LASSO and Marginal Fused LASSO

open access: yesStatistics in Medicine, Volume 45, Issue 1-2, January 2026.
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]

open access: yes
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]

open access: yes, 2001
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

open access: yesTopics in Cognitive Science, Volume 18, Issue 1, Page 169-186, January 2026.
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

«El inmortal» de Jorge Luis Borges: el yo, infinitos, absolutos y vocabularios finales Jorge Luis Borges's «The Immortal»: the Self, Infinites, Absolutes, and Final Vocabularies

open access: yesAisthesis, 2011
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  

El diario azul de Carlota

open access: yesCuestiones de Género: de la Igualdad y la Diferencia, 2009
Reseña El diario azul de Carlota. Gemma Lienas, Alba Sanchís. Barcelona: El Aleph, 2006.
Adelina Rodríguez Pacios
doaj   +1 more source

Home - About - Disclaimer - Privacy