Results 31 to 40 of about 14,038,334 (310)
Polynomial asymptotic stability of damped stochastic differential equations
Electronic Journal of Qualitative Theory of Differential Equations, 2004 The paper studies the polynomial convergence of solutions of a scalar nonlinear It\^{o} stochastic differential equation\[dX(t) = -f(X(t))\,dt + \sigma(t)\,dB(t)\] where it is known, {\it a priori}, that $\lim_{t\rightarrow\infty} X(t)=0$, a.s.
John Appleby, D. Mackey
doaj +1 more source
SciPost Physics, 2018 We study (1+1)-dimensional non-linear sigma models whose target space is the flag manifold U(N)\over U(N_1)\times U(N_2)\cdots U(N_m), with a specific focus on the special case U(N)/U(1)^{N}U(N)/U(1)N. These generalize the well-known \mathbb{CP}^{N-1}ℂℙN−
K. Ohmori, N. Seiberg, Shu-Heng Shao
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Oscillation criteria for second order nonlinear retarded differential equations
Electronic Journal of Qualitative Theory of Differential Equations, 2008 The aim of this paper is to deduce oscillatory and asymptotic behavior of the solutions of the second order nonlinear retarded differential equation $$ \left[r(t)\!\big|\big[x(t)-p(t)x\left[\tau(t)\right]\big]'\big|^{\alpha-1} \big[x(t)-p(t)x\left[\tau(t)
D. Lackova
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Trends in Sigma-1 Receptor Research: A 25-Year Bibliometric Analysis
Frontiers in Pharmacology, 2019 Purpose: There are previous reviews focused on Sigma-1 receptor but no bibliometric studies examining this field as a whole. This article aims to present a global view of Sigma-1 receptor research and its intellectual structure.
L. Romero, E. Portillo-Salido
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On Quantum T-duality in sigma models
, 1998 The problem of quantum equivalence between non-linear sigma models related by Abelian or non-Abelian T-duality is studied in perturbation theory. Using the anomalous Ward identity for Weyl symmetry we derive a relation between the Weyl anomaly coefficients of the original and dual theories.
Balog, J +4 more
openaire +3 more sources
Modern Stochastics: Theory and Applications, 2016 We consider a stochastic differential equation of the form \[ dX_{t}=\theta a(t,X_{t})\hspace{0.1667em}dt+\sigma _{1}(t,X_{t})\sigma _{2}(t,Y_{t})\hspace{0.1667em}dW_{t}\] with multiplicative stochastic volatility, where Y is some adapted stochastic ...
Meriem Bel Hadj Khlifa +3 more
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Neutro-Sigma Algebras and Anti-Sigma Algebras [PDF]
Neutrosophic Sets and Systems, 2022 Neutro-algebra structures play a significant role in the neutrosophic theory. Especially, with the help of neutroalgebraic structures; neutrosophic theory makes a valuable addition to the classical theory.
Memet Şahin
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Thermally activated conductance of a silicon inversion layer by electrons excited above the mobility edge [PDF]
, 1981 The thermally activated conductivity sigma of an n-type inversion layer on a (100) oriented silicon surface and its derivative d sigma /dT were measured in the temperature range 1.4K-4.2K. Above T approximately=2.5K both the temperature dependence of (T/
Mattey, A.P.M. +2 more
core +3 more sources
The SIGMA rat brain templates and atlases for multimodal MRI data analysis and visualization
Nature Communications, 2019 Preclinical imaging studies offer a unique access to the rat brain, allowing investigations that go beyond what is possible in human studies. Unfortunately, these techniques still suffer from a lack of dedicated and standardized neuroimaging tools ...
D. A. Barrière +22 more
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Elastic differential cross-section $${\mathrm{d}}\sigma /{\mathrm{d}}t$$ at $$\sqrt{s}=2.76\hbox { TeV}$$ and implications on the existence of a colourless C-odd three-gluon compound state [PDF]
, 2018 The proton-proton elastic differential cross section ${\rm d}\sigma/{\rm d}t$ has been measured by the TOTEM experiment at $\sqrt{s}=2.76$ TeV energy with $\beta^{*}=11$ m beam optics.
G. Antchev +79 more
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