Zobrazeno 1 - 10
of 206
pro vyhledávání: '"D. Lazarov"'
Autor:
Iviana P. Yovchevska, Alexandar B. Trenovski, Maria H. Atanasova, Martin N. Georgiev, Radka K. Tafradjiiska-Hadjiolova, Simeon D. Lazarov, Plamen H. Yovchevski
Publikováno v:
Pathophysiology, Vol 29, Iss 2, Pp 233-242 (2022)
In the current pandemic of coronavirus disease (COVID-19), the identification of the patients admitted with severe infection–who are disposed to a high risk of acute respiratory distress syndrome (ARDS) development, is of a major significance for t
Externí odkaz:
https://doaj.org/article/5bd2c4b2b8434e3286ab5509b1225f47
Autor:
Andon D. Lazarov, Petia Petrova
Publikováno v:
Cybernetics and Information Technologies. 22:86-95
In the present study, an extended classification of Internet users penetrating in computer networks and a definition of the motivation as a psychological and emotional state and main prerequisites for modelling of network intruder’s activity are su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d43d6a1beee3b805224dbc14792c89c
https://doi.org/10.2478/cait-2022-0018
https://doi.org/10.2478/cait-2022-0018
Publikováno v:
Computational Methods in Applied Mathematics. 20:591-594
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccb381d024d495e9954a3944a1be9476
https://doi.org/10.1515/cmam-2020-0108
https://doi.org/10.1515/cmam-2020-0108
Publikováno v:
Applied Numerical Mathematics. 140:115-133
In this research, we give projection-based error analysis on a multiscale hybridizable discontinuous Galerkin method to numerically solve parabolic problem with a heterogeneous coefficient. We modified the spectral multiscale HDG method introduced in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e4c20c7292ca0d37b80a3be9e5a92ea
https://doi.org/10.1016/j.apnum.2019.01.011
https://doi.org/10.1016/j.apnum.2019.01.011
Publikováno v:
IMA Journal of Numerical Analysis. 40:1746-1771
In this paper, we develop and study algorithms for approximately solving linear algebraic systems: ${{\mathcal{A}}}_h^\alpha u_h = f_h$, $ 0< \alpha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee1d736129750d359c1e792ad94c23bb
https://doi.org/10.1093/imanum/drz013
https://doi.org/10.1093/imanum/drz013
The survey is devoted to numerical solution of the fractional equation $A^\alpha u=f$, $0 < \alpha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f2399ffe970523b5ea60d07dc3201a9
http://arxiv.org/abs/2010.02717
http://arxiv.org/abs/2010.02717
The paper is devoted to the numerical solution of algebraic systems of the type ( A α + q I ) u = f , 0 α 1 , q > 0 , u , f ∈ R N , where A is a symmetric and positive definite matrix. We assume that A is obtained by finite difference approximati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e56e9039a4f48906e04b4f5aa2cfb4f
Autor:
Aziz Takhirov, Raytcho D. Lazarov
Publikováno v:
Journal of Computational and Applied Mathematics. 340:537-545
In this short note we study the interpolation spaces based uniform inf-sup condition for Brinkman equation in highly heterogeneous domains. The result is known to hold in the case of a uniform constant permeability. Our numerical construction and exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d98f4196af9817c1bf35a0a08ba5bcf
https://doi.org/10.1016/j.cam.2017.11.037
https://doi.org/10.1016/j.cam.2017.11.037
Publikováno v:
Computational Methods in Applied Mathematics. 17:643-646
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82636175f61175b6c54f23d0128fa51a
https://doi.org/10.1515/cmam-2017-0036
https://doi.org/10.1515/cmam-2017-0036
Publikováno v:
Computational Methods in Applied Mathematics. 18:1-20
We present and analyze a space-time Petrov–Galerkin finite element method for a time-fractional diffusion equation involving a Riemann–Liouville fractional derivative of order α ∈ ( 0 , 1 ) {\alpha\in(0,1)} in time and zero initial data. We de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a54e4f9298a22e9a26ab3016f48f3bc
https://doi.org/10.1515/cmam-2017-0026
https://doi.org/10.1515/cmam-2017-0026