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Matematicheskie Zametki, 2012, Volume 91, Issue 1, Pages 120–135
DOI: https://doi.org/10.4213/mzm8771
(Mi mzm8771)
 

This article is cited in 15 scientific papers (total in 15 papers)

On Small Solutions of Nonlinear Equations with Vector Parameter in Sectorial Neighborhoods

N. A. Sidorov, R. Yu. Leontiev, A. I. Dreglea

Irkutsk State University
References:
Abstract: We consider the nonlinear operator equation $B(\lambda)x+R(x,\lambda)=0$ with parameter $\lambda$, which is an element of a linear normed space $\Lambda$. The linear operator $B(\lambda)$ has no bounded inverse for $\lambda=0$. The range of the operator $B(0)$ can be nonclosed. The nonlinear operator $R(x,\lambda)$ is continuous in a neighborhood of zero and $R(0,0)=0$. We obtain sufficient conditions for the existence of a continuous solution $x(\lambda)\to 0$ as $\lambda\to 0$ with maximal order of smallness in an open set $S$ of the space $\Lambda$. The zero of the space $\Lambda$ belongs to the boundary of the set $S$. The solutions are constructed by the method of successive approximations.
Keywords: nonlinear operator equation, Banach space, sectorial neighborhood, Fredholm operator, bifurcation, Schmidt's lemma, regularizer for a nonlinear operator.
Received: 05.03.2010
English version:
Mathematical Notes, 2012, Volume 91, Issue 1, Pages 90–104
DOI: https://doi.org/10.1134/S0001434612010105
Bibliographic databases:
Document Type: Article
UDC: 517.988.67
Language: Russian
Citation: N. A. Sidorov, R. Yu. Leontiev, A. I. Dreglea, “On Small Solutions of Nonlinear Equations with Vector Parameter in Sectorial Neighborhoods”, Mat. Zametki, 91:1 (2012), 120–135; Math. Notes, 91:1 (2012), 90–104
Citation in format AMSBIB
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\paper On Small Solutions of Nonlinear Equations with Vector Parameter in Sectorial Neighborhoods
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\pages 120--135
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  • This publication is cited in the following 15 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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