On a Fučík problem
Valter Šeda (1983)
Annales Polonici Mathematici
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Valter Šeda (1983)
Annales Polonici Mathematici
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Boris Rudolf (1995)
Archivum Mathematicum
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In the paper it is proved that each generalized boundary value problem for the n-th order linear differential equation generates a Fredholm mapping of index zero.
Boris Rudolf (2000)
Archivum Mathematicum
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In the paper it is proved that the generalized linear boundary value problem generates a Fredholm operator. Its index depends on the number of boundary conditions. The existence results of Landesman-Lazer type are given as an application to nonlinear problems by using dual generalized boundary value problems.
David Ruelle (1989)
Recherche Coopérative sur Programme n°25
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David Ruelle (1989)
Recherche Coopérative sur Programme n°25
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A. Buraczewski (1974)
Colloquium Mathematicae
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