Results 31 to 40 of about 3,443,471 (241)

The closure of ideals of $\boldsymbol{\ell^1(\Sigma)}$ in its enveloping $\boldsymbol{\mathrm{C}^\ast}$-algebra [PDF]

open access: yes, 2017
If $X$ is a compact Hausdorff space and $\sigma$ is a homeomorphism of $X$, then an involutive Banach algebra $\ell^1(\Sigma)$ of crossed product type is naturally associated with the topological dynamical system $\Sigma=(X,\sigma)$.
de Jeu, Marcel, Tomiyama, Jun
core   +3 more sources

Joint Use of e.Photoexpression© and Photonarration: What Methodological Added Value?

open access: yesFrontiers in Public Health, 2021
Objectives: The objective is to describe the informative value and the added value of a qualitative multiphase methodology in order to investigate the conceptions of children aged 6–11 on the determinants of health and cancer.Method: This article ...
Deyra Maéliane   +4 more
doaj   +1 more source

Symmetric $(σ,τ)$-algebras and $(σ,τ)$-Hochschild cohomology [PDF]

open access: yesarXiv, 2023
On an associative algebra, we introduce the concept of symmetric $(\sigma,\tau)$-derivations together with a regularity condition and prove that strongly regular symmetric $(\sigma,\tau)$-derivations are inner. Symmetric $(\sigma,\tau)$-derivations are $(\sigma,\tau)$-derivations that are simultaneously $(\sigma,\tau)$-derivations as well as $(\tau ...
arxiv  

Electrodeposition and analysis of thick bismuth films

open access: yesScientific Reports, 2023
Due to its unique physical and chemical properties, bismuth is an attractive candidate for a wide range of applications such as battery anodes, radiation shielding, and semiconductors, to name a few.
Kendrich O. Hatfield   +7 more
doaj   +1 more source

Sigma Sigma Sigma Scrapbook, 2008 [PDF]

open access: yes, 2008
https://digitalcommons.longwood.edu/trisig_scrapbooks/1006/thumbnail ...
Sigma Sigma Sigma
core   +1 more source

Slowdown in branching Brownian motion with inhomogeneous variance [PDF]

open access: yes, 2015
We consider a model of Branching Brownian Motion with time-inhomogeneous variance of the form \sigma(t/T), where \sigma is a strictly decreasing function.
Maillard, Pascal, Zeitouni, Ofer
core   +1 more source

Theory of Tunneling Effect in 1D AIII-class Topological Insulator (Nanowire) Proximity Coupled with a Superconductor [PDF]

open access: yesJ. Phys. Soc. Jpn. 89, 054701 (2020), 2019
We study the tunneling effect in an AIII-class insulator proximity coupled with a spin-singlet $s$-wave superconductor, in which three phases are characterized by the integer topological invariant $\mathcal{N}$. By solving the Bogoliubov-de Gennes equation explicitly, we analytically obtain a normal reflection coefficient $R_{\sigma\sigma'}$ and an ...
arxiv   +1 more source

Sigma Sigma Sigma Scrapbook, 1960-1962 [PDF]

open access: yes, 1960
https://digitalcommons.longwood.edu/trisig_scrapbooks/1009/thumbnail ...
Sigma Sigma Sigma
core   +1 more source

Sigma Sigma Sigma Scrapbook, 2002-2004 [PDF]

open access: yes, 2002
https://digitalcommons.longwood.edu/trisig_scrapbooks/1005/thumbnail ...
Sigma Sigma Sigma
core   +1 more source

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