Hristo Kiskinov

Prof. Dr. Hristo Kiskinov

Faculty of Mathematics and Informatics, Plovdiv University, Plovdiv, Bulgaria
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Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 August 2017 in Fractional Calculus and Applied Analysis
Verified
Journal Article
Closed access
DBDoychin Boyadzhiev
Doychin Boyadzhiev
Hristo KiskinovHristo Kiskinov
Hristo Kiskinov
Magdalena VeselinovaMagdalena Veselinova
Magdalena Veselinova
Andrey Ivanov ZaharievAndrey Ivanov Zahariev
Andrey Ivanov Zahariev

14 July 2018 in Integral Transforms and Special Functions
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Journal Article
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DBD. Boyadzhiev
D. Boyadzhiev
Hristo KiskinovHristo Kiskinov
Hristo Kiskinov
Andrey Ivanov ZaharievAndrey Ivanov Zahariev
Andrey Ivanov Zahariev
The aim of the present paper is to obtain an integral representation of the solution of the Cauchy problem with discontinuous and continuous initial conditions for linear fractional differential system with Caputo-type derivatives and distributed delay. The obtained results are new even in the particular case of fractional system with constant delays.

1 January 2016 in AIP Conference Proceedings
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Conference Paper
Closed access
Magdalena VeselinovaMagdalena Veselinova
Magdalena Veselinova
Hristo KiskinovHristo Kiskinov
Hristo Kiskinov
Andrey Ivanov ZaharievAndrey Ivanov Zahariev
Andrey Ivanov Zahariev
The aim of the present work is to establish explicit conditions for global asymptotic stability of neutral linear fractional differential system with distributed delays. The derivatives in the system can be of Riemann-Liouville or Caputo type. We consider basically the incommensurate case but some results are given for the commensurate case too. The proposed conditions are based on the logarithmic norm technique and part of the results are new even in the particular case of system with constant delays.

1 January 2016 in Filomat
Verified
Journal Article
Open access
Magdalena VeselinovaMagdalena Veselinova
Magdalena Veselinova
Hristo KiskinovHristo Kiskinov
Hristo Kiskinov
Andrey Ivanov ZaharievAndrey Ivanov Zahariev
Andrey Ivanov Zahariev
The aim of the present work is to study the initial value problem for neutral linear fractional differential system with distributed delays in incommensurate case. Furthermore, in the autonomous case with derivatives in the Riemann-Liouville or Caputo sense we establish that if all roots of the introduced characteristic equation have negative real parts, then the zero solution is globally asymptotically stable. The proposed condition coincides with the conditions which guaranty the same result in the particular case of system with constant delays.

1 January 2015 in AIP Conference Proceedings
Verified
Conference Paper
Closed access
Magdalena VeselinovaMagdalena Veselinova
Magdalena Veselinova
Hristo KiskinovHristo Kiskinov
Hristo Kiskinov
Andrey Ivanov ZaharievAndrey Ivanov Zahariev
Andrey Ivanov Zahariev
In the present work we study the Cauchy problem for linear incommensurate fractional differential system with distributed delays. For the autonomous case with distributed delays with derivatives in Riemann-Liouville or Caputo sense, we establish sufficient conditions under which the zero solution is globally asymptotic stable. The established conditions coincide with the conditions which guaranty the same result in the particular case of system with constant delays and for the case of system without delays in the commensurate case too.