The fixed point index for accretive mapping with -set contraction perturbation in cones.
Chen, Yuqing (1996)
International Journal of Mathematics and Mathematical Sciences
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Chen, Yuqing (1996)
International Journal of Mathematics and Mathematical Sciences
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Avery, Richard, Henderson, Johnny, O'Regan, Donal (2007)
Fixed Point Theory and Applications [electronic only]
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Marian Mrozek (1989)
Fundamenta Mathematicae
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Soltanov, Kamal N. (2007)
Fixed Point Theory and Applications [electronic only]
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Mathematica Bohemica
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In this paper, we prove some multiplicity results for sign-changing solutions of an operator equation in an ordered Banach space. The methods to show the main results of the paper are to associate a fixed point index with a strict upper or lower solution. The results can be applied to a wide variety of boundary value problems to obtain multiplicity results for sign-changing solutions.
Roman Srzednicki (1985)
Fundamenta Mathematicae
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Feng, Meiqiang, Zhang, Xuemei, Ge, Weigao (2010)
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Obukhovskii, Valeri, Zecca, Pietro, Zvyagin, Victor (2002)
Abstract and Applied Analysis
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