Zobrazeno 1 - 10
of 14
pro vyhledávání: '"S. G. Hristova"'
Autor:
S. G. Hristova, M. A. Rangelova
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 30, Iss 1, Pp 57-62 (2002)
The initial value problem for a special kind of differential equations with a step function is studied. The monotone-iterative technique of Lakshmikantham for approximate finding of the solutions of the given problem is well grounded.
Externí odkaz:
https://doaj.org/article/0b05e325660440eaa20772c775a75447
Autor:
S. G. Hristova, A. Georgieva
Publikováno v:
International Journal of Differential Equations, Vol 2011 (2011)
The object of investigations is a system of impulsive differential equations with “supremum.” These equations are not widely studied yet, and at the same time they are adequate mathematical model of many real world processes in which the present
Externí odkaz:
https://doaj.org/article/f8cc3b02cafd4141ad8946394f995c48
Autor:
S. G. Hristova, D. D. Bainov
Publikováno v:
Journal of Numerical Analysis and Approximation Theory, Vol 19, Iss 2 (1990)
Not available.
Externí odkaz:
https://doaj.org/article/facd1d48f92e466884527cf9faaad82a
Publikováno v:
Proceedings of Indian National Science Academy, Vol 28, Iss 4 (2015)
LINEAR INTEGRO-SUMMATION INEQUALITIES FOR SCALAR FUNCTIONS OF TWO VARIABLES
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::b8f212ae0ee75901643bfd238c8c2b38
https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/20005a19_521.pdf
https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/20005a19_521.pdf
Autor:
L. M. Hall, S. G. Hristova
Publikováno v:
Open Mathematics, Vol 2, Iss 2, Pp 250-259 (2004)
The method of quasilinearization for a periodic boundary value problem for nonlinear hybrid differential equations is studied. It is shown that the convergence is quadratic.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22f52c5072a8b8f51cc3c443471e717a
https://doi.org/10.2478/bf02476542
https://doi.org/10.2478/bf02476542
Autor:
G. K. Kulev, S. G. Hristova
Publikováno v:
Journal of Computational and Applied Mathematics. 132(2):399-407
In this paper we study the existence and approximation of solution for nonlinear impulsive differential equations with fixed moments of impulsive perturbations. Using quasilinearization technique we obtain a monotone sequence of approximate solutions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f883241313995e025bc9950539fddcd
Autor:
S. G. Hristova
Publikováno v:
AIP Conference Proceedings.
The main goal of the paper is studying stability properties of the difference of solutions of a system of nonlinear impulsive differential equations with different initial data. The initial data differs both in initial time and initial position. In m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac60256183ce566fc42fd34b9537500d
https://doi.org/10.1063/1.4765534
https://doi.org/10.1063/1.4765534
Publikováno v:
AIP Conference Proceedings.
This paper investigates parametric stability. A Lyapunov function and Razumkhin method as well as two different measures for the initial function and the solution have been applied. A comparison scalar ordinary differential equation has been employed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41fc98838e1fb6472e00d9187b75b61f
https://doi.org/10.1063/1.3515574
https://doi.org/10.1063/1.3515574
Autor:
S. G. Hristova, A. S. Vatsala
Publikováno v:
Journal of Applied Mathematics and Stochastic Analysis, Vol 2006 (2006)
The method of generalized quasilinearization for the system of nonlinear impulsive differential equations with periodic boundary conditions is studied. As a byproduct, the result for the system without impulses can be obtained, which is a new result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edb5ba6a5b381370baf2531bcaa2fc65
https://doaj.org/article/341ddb1ad49240f59adccfd672b53f4c
https://doaj.org/article/341ddb1ad49240f59adccfd672b53f4c
Autor:
S. G. Hristova
This new and important book expands the idea of the wide specter of the theory of impulsive equations to the theoretical and applied researchers in mathematics and provides them a tool and motivation for deeper investigations and applications of thes
