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Master's Thesis
Author of thesis: Bc. Dušan Oberta
Acad. year: 2025/2026
Supervisor: prof. Mgr. Pavel Řehák, Ph.D.
Reviewer: doc. Ing. Luděk Nechvátal, Ph.D.
In this Master's thesis we address the question of solvability of differential equations in Banach spaces. The thesis itself is divided into three major parts. In the first part we study the existence of local solutions of an initial value problem for fractional differential equations in Banach spaces. In the second part we study the existence of local solutions of an initial value problem for dynamic equations on time scales in Banach spaces. Also, in these two parts we show applications of our results on countable systems arising from semidiscretisation of fractional PDEs and partial dynamic equations on time scales, respectively. Finally, in the third part we study the existence of solutions of countable systems of ODEs on unbounded intervals with prescribed asymptotic behaviour. Each of the three parts contains new results, most of which were submitted to academic journals. Central role is played by the standard tools of functional analysis, axiomatic theory of measures of noncompactness, abstract fractional calculus, abstract time scale calculus, and the newly introduced concepts of Kamke function of order α and Kamke Δ-function.
differential equations in Banach spaces, existence of solutions, countable systems of ODEs, semidiscretisation of PDEs, measures of noncompactness, abstract fractional differential equations, Kamke function of order α, abstract dynamic equations on time scales, Kamke Δ-function, asymptotic behaviour of solutions
Date of defence
08.06.2026
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Student odprezentoval svoji práci. Posudky vedoucího a oponenta práce byly přečteny, oponent nebyl přítomen. Komise položila studentovi otázku z oponentova posudku, na kterou student uspokojivě odpověděl. Proběhla krátká diskuze, během které komise položila doplňující dotazy. Na otázky student odpověděl.
Language of thesis
English
Faculty
Fakulta strojního inženýrství
Department
Institute of Mathematics
Study programme
Mathematical Engineering (N-MAI-P)
Composition of Committee
prof. RNDr. Zdeněk Pospíšil, Dr. (předseda) prof. Mgr. Pavel Řehák, Ph.D. (místopředseda) doc. Mgr. Zuzana Hübnerová, Ph.D. (člen) doc. Mgr. Zdeněk Opluštil, Ph.D. (člen) doc. Mgr. Jaroslav Hrdina, Ph.D. (člen)
Supervisor’s reportprof. Mgr. Pavel Řehák, Ph.D.
Grade proposed by supervisor: A
Reviewer’s reportdoc. Ing. Luděk Nechvátal, Ph.D.
Grade proposed by reviewer: A
Responsibility: Mgr. et Mgr. Hana Odstrčilová