Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Sorin Nădăban"'
Autor:
Sorin Nadaban
Publikováno v:
Surveys in Mathematics and its Applications, Vol 1 (2006), Pp 13-22 (2006)
In this paper we define the notion of spectrum for a morphism of quotient Hilbert spaces. The definition is the same with the one given by L.Waelbroeck but the proofs that the spectrum is a compact and nonempty set are different. In this context we a
Externí odkaz:
https://doaj.org/article/67f9fe895f734402855c7432c52fcb8f
Autor:
Sorin Nădăban
Publikováno v:
Mathematics, Vol 10, Iss 20, p 3746 (2022)
In the present paper, we first introduce different types of fuzzy continuity for mappings between fuzzy F-normed linear spaces and the relations between them are investigated. Secondly, the principles of fuzzy functional analysis are established in t
Externí odkaz:
https://doaj.org/article/17a3785a444e4deb89d0072ce45a91dd
Publikováno v:
Symmetry, Vol 14, Iss 10, p 1966 (2022)
The aim of this paper is to provide new ways of dealing with dynamic programming using a context of newly proven results about fixed-point problems in linear spaces endowed with a fuzzy norm. In our paper, the general framework is set to fuzzy normed
Externí odkaz:
https://doaj.org/article/ac91aec59a7043dc8cff79bbb1abdd3d
Fuzzy Logic and Soft Computing—Dedicated to the Centenary of the Birth of Lotfi A. Zadeh (1921–2017)
Autor:
Sorin Nădăban
Publikováno v:
Mathematics, Vol 10, Iss 17, p 3216 (2022)
In 1965, Lotfi A. Zadeh published “Fuzzy Sets”, his pioneering and controversialpaper, which has now reached over 115,000 citations [...]
Externí odkaz:
https://doaj.org/article/413dd18a9ed84d2985bddafce0dd5c15
Autor:
Simona Dzitac, Sorin Nădăban
Publikováno v:
Mathematics, Vol 9, Iss 14, p 1701 (2021)
This paper is dedicated to Professor Ioan Dzitac (1953–2021). Therefore, his life has been briefly presented as well as a comprehensive overview of his major contributions in the domain of soft computing methods in a fuzzy environment. This paper i
Externí odkaz:
https://doaj.org/article/85855b2b67934a49b820fd980179c3fd
Publikováno v:
Mathematics, Vol 9, Iss 11, p 1272 (2021)
Optimization problems in the fuzzy environment are widely studied in the literature. We restrict our attention to mathematical programming problems with coefficients and/or decision variables expressed by fuzzy numbers. Since the review of the recent
Externí odkaz:
https://doaj.org/article/718cd307c89b46bebfca7e68dac3f630
Publikováno v:
Symmetry, Vol 11, Iss 7, p 923 (2019)
In the present paper some different types of boundedness in fuzzy normed linear spaces of type ( X , N , ∗ ) , where ∗ is an arbitrary t-norm, are considered. These boundedness concepts are very general and some of them have no correspondent in t
Externí odkaz:
https://doaj.org/article/c1d8b0cb23f1404a81527b5a42314719
Autor:
Sorin Nădăban
Publikováno v:
Annals of West University of Timisoara - Mathematics and Computer Science. 58:38-48
In this paper we present a new approach for the fuzzy quasi-b-metric spaces and we obtain some properties of these spaces. A special attention is granted to the decomposition theorems of a fuzzy quasi-b-metric into a right continuous and ascending fa
Autor:
Sorin Nădăban, Dan Deac
Publikováno v:
Intelligent Methods Systems and Applications in Computing, Communications and Control ISBN: 9783031166839
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfd0af5c284ce554c915439e9c712e18
https://doi.org/10.1007/978-3-031-16684-6_17
https://doi.org/10.1007/978-3-031-16684-6_17
Publikováno v:
INTERNATIONAL JOURNAL OF COMPUTERS COMMUNICATIONS & CONTROL. 16
In this paper we have presented, firstly, an evolution of the concept of fuzzy normed linear spaces, different definitions, approaches as well as generalizations. A special section is dedicated to fuzzy Banach spaces. In the case of fuzzy normed line