Multivalued -essential maps of acyclic type on Hausdorff topological spaces.
O'Regan, Donal (2006)
Journal of Applied Mathematics and Stochastic Analysis
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O'Regan, Donal (2006)
Journal of Applied Mathematics and Stochastic Analysis
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O'Regan, Donal (2004)
Fixed Point Theory and Applications [electronic only]
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Agarwal, Ravi P., O'Regan, Donal (2003)
Abstract and Applied Analysis
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Gilles Fournier, Lech Górniewicz (1976)
Fundamenta Mathematicae
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Won Kyu Kim (1995)
Commentationes Mathematicae Universitatis Carolinae
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In this paper, we will give a new fixed point theorem for lower semicontinuous multimaps in a Hausdorff topological vector space.
Grzegorz Gabor (1995)
Discussiones Mathematicae, Differential Inclusions, Control and Optimization
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Introduction Many authors have developed the topological degree theory and the fixed point theory for set-valued maps using homological techniques (see for example [19, 28, 27, 16]). Lately, an elementary technique of single-valued approximation (on the graph) (see [11, 1, 13, 5, 9, 2, 6, 7]) has been used in constructing the fixed point index for set-valued maps with compact values (see [21, 20, 4]). In [20, 4] authors consider set-valued...
H. Sies (1983)
Fundamenta Mathematicae
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Kim, In-Sook (2004)
Fixed Point Theory and Applications [electronic only]
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Włodarczyk, K., Klim, D. (2005)
Fixed Point Theory and Applications [electronic only]
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Agarwal, R.P., O'Regan, Donal (2004)
Journal of Applied Mathematics and Stochastic Analysis
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