AbstractIn this paper the author has studied the Alexandrov problem of area preserving mappings in linear 2-normed spaces and has provided some remarks for the generalization of earlier results of H.Y. Chu, C.G. Park and W.G. Park.In addition the author has introduced the concept of linear (2,p)-normed spaces and for such spaces he has solved the Alexandrov problem
AbstractWe study vector functions of Rn into itself, which are of the form x↦g(|x|)x, where g:(0,∞)→...
In this article, we formalize differentiability of implicit function theorem in the Mizar system [3]...
AbstractIn this paper we solve the following Ulam problem: “Give conditions in order for a linear ma...
AbstractWe introduce the concept of 2-isometry which is suitable to represent the notion of area pre...
AbstractIn this paper, we investigate approximate additive mappings, approximate Jensen mappings and...
AbstractWe study the notion of 2-isometry which is suitable to represent the concept of area preserv...
The aim of the present paper is to show that many Phelps type duality result, relating the extensi...
AbstractIn this paper, in connection with the known result of Baker and Vogt, we get if f:X→Y preser...
In this paper we will prove Banach-Steinhaus theorems for some families of bounded linear operators ...
AbstractWe consider 2-isometries, weak 2-isometries and 2-continuous mappings and investigate the re...
Some stability questions of the Jensen's functional inequality in the setting of 2-normed spaces are...
Given two normed spaces X, Y , the aim of this paper is establish that the existence of an isomorphi...
In this paper, we prove the Hyers-Ulam stability of the additive functional equation for a number of...
AbstractIt is well known that the absolute value map on the self-adjoint operators on an infinite di...
In this paper we consider properties of the 2-normed sets and we construct two 2-normed sets of line...
AbstractWe study vector functions of Rn into itself, which are of the form x↦g(|x|)x, where g:(0,∞)→...
In this article, we formalize differentiability of implicit function theorem in the Mizar system [3]...
AbstractIn this paper we solve the following Ulam problem: “Give conditions in order for a linear ma...
AbstractWe introduce the concept of 2-isometry which is suitable to represent the notion of area pre...
AbstractIn this paper, we investigate approximate additive mappings, approximate Jensen mappings and...
AbstractWe study the notion of 2-isometry which is suitable to represent the concept of area preserv...
The aim of the present paper is to show that many Phelps type duality result, relating the extensi...
AbstractIn this paper, in connection with the known result of Baker and Vogt, we get if f:X→Y preser...
In this paper we will prove Banach-Steinhaus theorems for some families of bounded linear operators ...
AbstractWe consider 2-isometries, weak 2-isometries and 2-continuous mappings and investigate the re...
Some stability questions of the Jensen's functional inequality in the setting of 2-normed spaces are...
Given two normed spaces X, Y , the aim of this paper is establish that the existence of an isomorphi...
In this paper, we prove the Hyers-Ulam stability of the additive functional equation for a number of...
AbstractIt is well known that the absolute value map on the self-adjoint operators on an infinite di...
In this paper we consider properties of the 2-normed sets and we construct two 2-normed sets of line...
AbstractWe study vector functions of Rn into itself, which are of the form x↦g(|x|)x, where g:(0,∞)→...
In this article, we formalize differentiability of implicit function theorem in the Mizar system [3]...
AbstractIn this paper we solve the following Ulam problem: “Give conditions in order for a linear ma...
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