Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Basil K. Papadopoulos"'
Publikováno v:
Symmetry, Vol 16, Iss 3, p 317 (2024)
In this paper, we present two new classes of fuzzy negations. They are an extension of a well-known class of fuzzy negations, the Sugeno Class. We use it as a base for our work for the first two construction methods. The first method generates ration
Externí odkaz:
https://doaj.org/article/f1bc4573ebe64ce79f2fa9fe1d8c03bc
Autor:
Fani I. Gkountakou, Kosmas E. Bantilas, Ioannis E. Kavvadias, Anaxagoras Elenas, Basil K. Papadopoulos
Publikováno v:
Applied Sciences, Vol 13, Iss 17, p 9602 (2023)
The assessment of rocking response is a challenging task due to its high nonlinearity. The present study investigates two methodologies to evaluate finite rocking rotations and overturn of three typical rocking systems. In particular, fuzzy linear re
Externí odkaz:
https://doaj.org/article/5daad4fcbfea4524a8ae5092ab62ae08
Publikováno v:
Journal of Mathematics, Vol 2020 (2020)
The crucial role that fuzzy implications play in many applicable areas was our motivation to revisit the topic of them. In this paper, we apply classical logic’s laws such as De Morgan’s laws and the classical law of double negation in known form
Externí odkaz:
https://doaj.org/article/419c8e5b593642098133b808c98e4c1a
Publikováno v:
Symmetry, Vol 13, Iss 1, p 27 (2020)
The major drawback of the classic approaches for project appraisal is the lack of the possibility to handle change requests during the project’s life cycle. This fact incorporates the concept of uncertainty in the estimation of this investment’s
Externí odkaz:
https://doaj.org/article/973ee827f94a43a68dcb0b2bed93fd23
Autor:
Maria N. Rapti, Basil K. Papadopoulos
Publikováno v:
Mathematics, Vol 8, Iss 6, p 886 (2020)
In this paper, we introduce a new construction method of a fuzzy implication from n increasing functions g i : [ 0 , 1 ] → [ 0 , ∞ ) , ( g ( 0 ) = 0 ) ( i = 1 , 2 , … , n , n ∈ ℕ ) and n + 1 fuzzy negations N i ( i = 1 , 2 , … , n + 1 , n
Externí odkaz:
https://doaj.org/article/75221b6590864ad0aca1b5655ae68457
Publikováno v:
Symmetry, Vol 12, Iss 1, p 155 (2020)
In this paper we introduce a new method of generating fuzzy implications via known fuzzy implications. We focus on the case of generating fuzzy implications via a fuzzy connective and at least one known fuzzy implication. We present some basic desira
Externí odkaz:
https://doaj.org/article/6b0faf0379304f7199e9e761be177dfd
Publikováno v:
Universe, Vol 5, Iss 3, p 70 (2019)
A list of all possible causal relations in the two-dimensional Minkowski space M is exhausted, based on the duality between timelike and spacelike in this particular case, and thirty topologies are introduced, all of them encapsulating the causal str
Externí odkaz:
https://doaj.org/article/c5232292d9a343f3b05c3ab0748398bc
Publikováno v:
Symmetry, Vol 11, Iss 3, p 304 (2019)
We give a topological condition for a generic sliced space to be globally hyperbolic without any hypothesis on lapse function, shift function, and spatial metric.
Externí odkaz:
https://doaj.org/article/cc0060b9b17a4401b56abc3089373907
Autor:
Basil K. Papadopoulos
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 17, Iss 4, Pp 693-696 (1994)
From real analysis it is known that if a sequence {fn, n∈ℕ} of real-valued functions defined and bounded on X⊂ℝ converges uniformly to f, then f is also bounded and the sequence {fn, n∈ℕ}. In the present paper we generalize results as the
Externí odkaz:
https://doaj.org/article/d24f950c4c24444d9fab9fd65396a639
Autor:
Basil K. Papadopoulos
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 12, Iss 4, Pp 665-668 (1989)
Let X be a Wilker space and M(X,Y) the set of continuous multifunctions from X to a topological space Y equipped with the compact-open topology. Assuming that M(X,Y) is equipped with the partial order ⊂ we prove that (M(X,Y),⊂) is a topological
Externí odkaz:
https://doaj.org/article/1e711c6d0cbb4a04b641f88a8c87533a