Results 81 to 90 of about 101,782 (200)

On bifurcation points of strongly condensing operators

open access: yesНаучный вестник МГТУ ГА, 2016
Two conditions equivalent to complete continuity of Frechet derivative at a point and the asymptotic derivative in the case of their existence are given. Theorem of M.A. Krasnosel’skii on asymptotic bifurcation points for completely con-tinuous fields to
N. A. Erzakova
doaj  

Homotopy analysis for derivatives pricing in a LIBOR market model with stochastic volatility(用Homotopy方法解随机波动率远期LIBOR模型中利率衍生品定价问题)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2013
为深入研究固定收益衍生品的定价问题,在波动率为相应的远期测度下的Ornstein-Uhlenbeck过程的模型框架下,给出了利率上限和债券期权的定价公式.同时,应用Homotopy方法解决了定价公式中产生的偏微分方程,使其以函数级数和的形式表示出来.并对级数和形式的解的收敛性进行了相应的分析.
LIShao-yu(李劭郁)   +2 more
doaj   +1 more source

Homotopy in statistical physics

open access: yesCondensed Matter Physics, 2006
In condensed matter physics and related areas, topological defects play important roles in phase transitions and critical phenomena. Homotopy theory facilitates the classification of such topological defects.
R.Kenna
doaj   +1 more source

Elliptic systems at resonance for jumping non-linearities

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we study the existence of nontrivial solutions for the problem $$\displaylines{ -\Delta u=\alpha _1u^{+}-\beta _1u^{-}+f(x,u,v)+h_1( x) \quad \text{in }\Omega, \cr -\Delta v=\alpha _2v^{+}-\beta _2v^{-}+g(x,u,v)+h_2( x) \quad \text ...
Hakim Lakhal, Brahim Khodja
doaj  

A Tactile Sensor Decoupling Process

open access: yesSensors, 2018
An improved hybrid homotopy method is proposed to decouple the multi-input model of tactile sensors. The time-embedded homotopy algorithm is proved to be very suitable for solving the problem.
Yuyun Xu   +4 more
doaj   +1 more source

The multi-morphisms and their properties and applications

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2015
In this paper a new class of multi-valued mappings (multi-morphisms) is defined as a version of a strongly admissible mapping, and its properties and applications are presented.
Mirosław Ślosarski
doaj   +1 more source

The Topological Transversality Theorem for Multivalued Maps with Continuous Selections

open access: yesMathematics, 2019
This paper considers a topological transversality theorem for multivalued maps with continuous, compact selections. Basically, this says, if we have two maps F and G with continuous compact selections and F ≅ G, then one map being essential ...
Donal O’Regan
doaj   +1 more source

A note on homotopy and pseudoisotopy of diffeomorphisms of $4$-manifolds

open access: yesComptes Rendus. Mathématique
This note serves to record examples of diffeomorphisms of closed smooth $4$-manifolds $X$ that are homotopic but not pseudoisotopic to the identity, and to explain why there are no such examples when $X$ is orientable and its fundamental group is a free ...
Krannich, Manuel, Kupers, Alexander
doaj   +1 more source

INDEX COMPUTATION OF SOME BISINGULAR OPERATORS WITH SHIFT BY HOMOTOPY METHOD

open access: yesAdvanced Engineering Research, 2010
The work continues to research the insufficiently explored problem of bisingular operators with shift index. It considers new cases of index computation of the bisingular operators with indisintegrative involutive shift by the homotopy method.
S. V. EFIMOV
doaj  

Anaphores, stratégies discursives et genres textuels [PDF]

open access: yesEcho des Etudes Romanes, 2012
In this paper, we start with the fact that every text presents a dominating shape of anaphoric relations. We wish to experiment the communicative dynamism of anaphora in two text genres: scientific written one versus essay.
Brigitte Wiederspiel
doaj  

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