On consequences of certain boundary conditions on the unit circle
Gabriela Adamczyk (2000)
Mathematica Bohemica
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Gabriela Adamczyk (2000)
Mathematica Bohemica
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Josef Král, Beloslav Riečan (1962)
Matematicko-fyzikálny časopis
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Jan Ligęza (1998)
Mathematica Bohemica
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In this paper first order linear ordinary differential equations are considered. It is shown that the Cauchy problem for these systems has a unique solution in , where denotes the Colombeau algebra.
Eva Dontová, Miroslav Dont, Josef Král (1997)
Mathematica Bohemica
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A mixed boundary value problem on a doubly connected domain in the complex plane is investigated. The solution is given in an integral form using reflection mapping. The reflection mapping makes it possible to reduce the problem to an integral equation considered only on a part of the boundary of the domain.
Jiří Klaška (1997)
Mathematica Bohemica
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In this paper we find a one-to-one correspondence between transitive relations and partial orders. On the basis of this correspondence we deduce the recurrence formula for enumeration of their numbers. We also determine the number of all transitive relations on an arbitrary -element set up to .