Results 121 to 130 of about 1,672 (143)
Structure and function of neurovascular unit in arterial hypertension. [PDF]
Kozniewska E, Aleksandrowicz M.
europepmc +1 more source
Fixed point theorem of Leggett–Williams type and its application
One of the generalizations of Krasnoselskii's theorem on cone expansion and compression was obtained in [\textit{R. W. Leggett, L. R. Williams}, J. Math. Anal. Appl., Vol. 76, 91--97 (1980; Zbl 0448.47044)]. In the present paper, the author proves the following Leggett-Williams type theorem: Theorem.
MIROSŁAWA Zima
exaly +4 more sources
Some fixed point theorems of Leggett-Williams type
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Richard Avery +2 more
exaly +4 more sources
Generalization for Amann's and Leggett–Williams' three-solution theorems and applications
Let \(X\) be a nonempty closed convex subset of a real ordered Banach space \(E\) and \(A:X \to X\) a completely continuous operator. The authors give conditions for \(A\) to have at least three fixed points. The results generalize those of \textit{H. Amann} [J. Funct. Anal. 11, 346--384 (1972; Zbl 0244.47046)], \textit{R. W. Leggett} and \textit{L. R.
Fuyi Li, Guodong Han
exaly +3 more sources
Leggett-Williams fixed point theorem type for sums of operators and application in PDEs [PDF]
Summary: In this paper we present an extension of the original version of Leggett-Williams fixed point theorem for a \(k\)-set contraction perturbed by an expansive operator. Our approach is applied to prove the existence of non trivial positive solutions for initial value problems (IVPs for short) covering a class two-dimensional nonlinear wave ...
Karima Mebarki
exaly +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Leggett–Williams theorems for coincidences of multivalued operators
Nonlinear Analysis: Theory, Methods & Applications, 2008Let \(X,Y\) be Banach spaces, \(C\) be a cone in \(X\) and let \(\Omega_1,\Omega_2\) be open bounded subsets of \(X\) with \(\overline{\Omega}_1\subset\Omega_2\). For a pair \((L,N)\) consisting of a linear Fredholm operator \(L:\text{dom}\,L\subset X\to Y\) of zero index and an upper semicontinuous (compact convex)-valued multimap \(N:X\multimap Y ...
MIROSŁAWA Zima
exaly +3 more sources

