Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Adrian Şerban"'
Autor:
Alina Elena Ionașcu, Shankha Shubhra Goswami, Alexandra Dănilă, Maria-Gabriela Horga, Corina Aurora Barbu, Adrian Şerban-Comǎnescu
Publikováno v:
Mathematics, Vol 12, Iss 8, p 1157 (2024)
This study presents an in-depth analysis of the selection process for primary sectors impacting the economic activity in Romania, employing an interval-valued fuzzy (IVF) approach combined with multi-criteria decision-making (MCDM) methodologies. Thi
Externí odkaz:
https://doaj.org/article/7977ba560885438fa195e34bd02b6933
Autor:
Adrian Şerban Comănescu
Publikováno v:
Ovidius University Annals: Economic Sciences Series, Vol XXII, Iss 2, Pp 763-768 (2022)
Google, the largest tool for online search, but also for promotion for any type of service, physical or digital product, comes with a new formula of what we collectively call the Google Business Profile. In this paper, we will try to present the st
Externí odkaz:
https://doaj.org/article/87fe9944cbdc46ff8cc305890702abc1
Publikováno v:
Mathematical Biosciences and Engineering, Vol 18, Iss 2, Pp 1845-1863 (2021)
A complete stability analysis of the equilibrium solutions of a system modeling tumor chemotherapy is performed in two cases of administration of the treatment, by continuous infusion and by periodic infusion. Several numerical simulations illustrate
Externí odkaz:
https://doaj.org/article/66f3503f9c86410f98de93f2b21943c7
Akademický článek
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Autor:
Ioan A. Rus, Marcel-Adrian Şerban
Publikováno v:
Annals of West University of Timisoara - Mathematics and Computer Science. 58:3-11
In this paper we study the following problem (Problem 4.2 in, I.A. Rus, Sets with structure, mappings and fixed point property: fixed point structures, Fixed Point Theory 23, No. 2 (2022), 689-706): Let (𝒰, 𝒮, M) be a fixed point structure on (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aea728dc1c4186910cfa771d09bfddb2
https://doi.org/10.2478/awutm-2022-0012
https://doi.org/10.2478/awutm-2022-0012
Autor:
Marcel-Adrian Şerban
Publikováno v:
Carpathian Journal of Mathematics. 37:259-263
"In the paper Operators on infinite dimensional cartesian product, (Analele Univ. Vest Timişoara, Mat. Inform., 48 (2010), 253–263), by I. A. Rus and M. A. Şerban, the authors give a generalization of the Fibre contraction theorem on infinite dim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbed405383055f7964b0ddc7dd0e7e93
https://doi.org/10.37193/cjm.2021.02.11
https://doi.org/10.37193/cjm.2021.02.11
Publikováno v:
Sensors, Vol 19, Iss 3, p 590 (2019)
One of the most important aspects of the detection of antioxidant compounds is developing a fast screening method. The screening of the overall relative antioxidant capacity (RAC) of several Romanian hydrosoluble plant extracts is the focus of this w
Externí odkaz:
https://doaj.org/article/ba8c345e564e41a2a7ca5ec9c799395c
Publikováno v:
Studia Universitatis Babes-Bolyai Matematica. 66:29-46
"In this paper we present an heuristic introduction to Bratu problem and we give some variants of Bratu's theorem (G. Bratu, Sur les \'equations int\'egrales non lin\'eaires, Bulletin Soc. Math. France, 42(1914), 113-142). Using the positivity of Gre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1532215871feda9bc446c67904f6783d
https://doi.org/10.24193/subbmath.2021.1.03
https://doi.org/10.24193/subbmath.2021.1.03
Publikováno v:
Carpathian Journal of Mathematics. 36:295-302
In this paper, we will give sufficient conditions ensuring that a Frum-Ketkov operator is weakly Picard. Some generalized Frum-Ketkov operators are also studied.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b8e7b32875eea2dc647e08d9e85d219
https://doi.org/10.37193/cjm.2020.02.13
https://doi.org/10.37193/cjm.2020.02.13
Publikováno v:
Discrete & Continuous Dynamical Systems - B. 25:733-747
Starting from some classical results of R. Conti, A. Haimovici and K. Iseki, and from a more recent result of S. Reich and A.J. Zaslavski, we present several theorems of approximation of the fixed points for non-self mappings on metric spaces. Both m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c81177b384b2e2a011f5e3ddd39fe321
https://doi.org/10.3934/dcdsb.2019264
https://doi.org/10.3934/dcdsb.2019264