Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Andrey Zahariev"'
Autor:
Natalya Ushenko, Ganna Likhonosova, Andrey Zahariev, Larysa Shaulska, Marcin Kęsy, Victoriia Hurochkina
Publikováno v:
Фінансово-кредитна діяльність: проблеми теорії та практики, Vol 6, Iss 53 (2023)
The study focuses on the algorithm of business behaviour under conditions of worsening of its economic security. The algorithm allows businesses to objectively assess the situation regarding financial threats and develop appropriate strategic measure
Externí odkaz:
https://doaj.org/article/6f4c08cf6e1545e1b95532ee8025817a
Publikováno v:
Fractal and Fractional, Vol 8, Iss 4, p 195 (2024)
The paper studies a class of nonlinear disturbed neutral linear fractional systems with derivatives in the the Riemann–Liouville sense and distributed delays. First, it is proved that the initial problem for these systems with discontinuous initial
Externí odkaz:
https://doaj.org/article/39be20c3469341c8b4eeb44c2764efd2
Publikováno v:
Fractal and Fractional, Vol 8, Iss 3, p 156 (2024)
In this work, we study a general class of retarded linear systems with distributed delays and variable-order fractional derivatives of Caputo type. We propose an approach consisting of finding an associated one-parameter family of constant-order frac
Externí odkaz:
https://doaj.org/article/e9c040fabd8d45c4a135e39d2c32bd6e
Publikováno v:
Fractal and Fractional, Vol 7, Iss 10, p 742 (2023)
We study several stability properties on a finite or infinite interval of inhomogeneous linear neutral fractional systems with distributed delays and Caputo-type derivatives. First, a continuous dependence of the solutions of the corresponding initia
Externí odkaz:
https://doaj.org/article/1dacf05ec547423d8bcb09f3b0405091
Publikováno v:
Axioms, Vol 12, Iss 7, p 637 (2023)
The aim of the present paper is to study the asymptotic properties of the solutions of linear fractional system with Riemann–Liouville-type derivatives and distributed delays. We prove under natural assumptions (similar to those used in the case wh
Externí odkaz:
https://doaj.org/article/a035037a9e8a4900ba1aca290a9729f0
Publikováno v:
Risks, Vol 11, Iss 4, p 71 (2023)
The main research question addressed in the paper is related to the possibility of medium-term forecasting of the public debts of the EU member states. The analysis focuses on a broad range of indicators (macroeconomic, fiscal, monetary, global, and
Externí odkaz:
https://doaj.org/article/e989f25acf0441f292a2456d4eaecd42
Publikováno v:
Entrepreneurship and Sustainability Issues, Vol 8, Iss 3, Pp 618-632 (2021)
Externí odkaz:
https://doaj.org/article/8068c27eaff64544b9b866892026e5d0
Autor:
Andrey Zahariev, Mikhail Zveryаkov, Stoyan Prodanov, Galina Zaharieva, Petko Angelov, Silvia Zarkova, Mariana Petrova
Publikováno v:
Entrepreneurship and Sustainability Issues, Vol 7, Iss 3, Pp 2382-2393 (2020)
Externí odkaz:
https://doaj.org/article/b0ccf0b7784a459c96a9d7636423dc62
Publikováno v:
Mathematics, Vol 10, Iss 23, p 4573 (2022)
The present work considers the initial problem (IP) for a linear neutral system with derivatives in Caputo’s sense of incommensurate order, distributed delay and various kinds of initial functions. For the considered IP, the studied problem of exis
Externí odkaz:
https://doaj.org/article/9be48bba8f084f588c95c339f8a8c280
Publikováno v:
Mathematics, Vol 10, Iss 15, p 2642 (2022)
In the present paper, sufficient conditions are obtained under which the Cauchy problem for a nonlinearly perturbed nonautonomous neutral fractional system with distributed delays and Caputo type derivatives has a unique solution in the case of initi
Externí odkaz:
https://doaj.org/article/e16756bfdc114746bead95de6989b784