Abstract:In this article, we propose to determine some stability results for the functional equation of cubic in random 2-normed spaces which seems to be a quite new and interesting idea. Also, we define the notion of continuity, approximately and conditional cubic mapping in random 2-normed spaces and prove some interesting results.
“…We refer to [32, 35, 44, 45] for the nonlinear absorption and source, nonlinear gradient absorption or source, and [9, 10, 22] for singular absorptions. Also, we refer to [46, 47] for the semilinear equations with an exponential source. When , equation (1.1) is known as a limit model of a class of problems arising in Chemical Engineering corresponding to enzymatic kinetics and hetergeneous catalyst of Langmuir–Hinshelwood type, see [3, 9, 12, 15, 22, 39, 43] and references therein.…”
Throughout this paper, we mainly consider the parabolic p-Laplacian equation with a weighted absorption in a bounded domain () with Lipschitz continuous boundary subject to homogeneous Dirichlet boundary condition. Here and are parameters, and is a given constant. Under the assumptions , a.e. in Ω, we can establish conditions of local and global in time existence of nonnegative solutions, and show that every global solution completely quenches in finite time a.e. in Ω. Moreover, we give some numerical experiments to illustrate the theoretical results.
“…We refer to [32, 35, 44, 45] for the nonlinear absorption and source, nonlinear gradient absorption or source, and [9, 10, 22] for singular absorptions. Also, we refer to [46, 47] for the semilinear equations with an exponential source. When , equation (1.1) is known as a limit model of a class of problems arising in Chemical Engineering corresponding to enzymatic kinetics and hetergeneous catalyst of Langmuir–Hinshelwood type, see [3, 9, 12, 15, 22, 39, 43] and references therein.…”
Throughout this paper, we mainly consider the parabolic p-Laplacian equation with a weighted absorption in a bounded domain () with Lipschitz continuous boundary subject to homogeneous Dirichlet boundary condition. Here and are parameters, and is a given constant. Under the assumptions , a.e. in Ω, we can establish conditions of local and global in time existence of nonnegative solutions, and show that every global solution completely quenches in finite time a.e. in Ω. Moreover, we give some numerical experiments to illustrate the theoretical results.
“…Recently, considerable attention has been increasing to the problem of fuzzy stability of functional equations. Several various fuzzy stability results concerning Cauchy, Jensen, simple quadratic, and cubic functional equations have been investigated [1,6,11,23,31] Quite recently, the stability results in the setting of intuitionistic fuzzy normed space were studied in [7,[18][19][20]22]respectively, while the idea of intuitionistic fuzzy normed space was introduced in [25].…”
In this paper, we recall the notion of intuitionistic fuzzy 2-normed space introduced by Mursaleen and Lohani [26] and using the direct method, we investigate the Hyers Ulam-Rassias stability of the following quadratic functional equation f (ax + by) + f (ax − by) − a 2 f (x + y) = a 2 f (x − y) − (2a 2 − a) f (x) − (2b 2 − a) f (y) in this space.
“…Quite recently, Chang [5] has established the stability of higher ring derivation in intuitionistic fuzzy Banach algebras associated to the Jensen type functional equation. In the recent past, Alotaibi and Mohiuddine [2] established the Ulam stability of a cubic functional equation in random 2-normed spaces, while the notion of random 2-normed spaces was introduced by Goleţ [8] and further studied in [18,26,21]. Now, we recall some notations and basic definitions which will be used throughout the paper.…”
Abstract:The aim of this paper is to establish some stability results concerning the Cauchy functional equation f (x + y) = f (x) + f (y) in the framework of intuitionistic fuzzy normed spaces.
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