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1.142  Articles
Let T be a bounded linear operator on a Banach space X into itself. In this paper, we study the uniform ergodicity of the operator T|Y when Y is a closed subspace invariant under T. We show that if T satisfies, lim n ? 8 ? T n ? n = 0 , then T is uniforml... see more

We recall a synthetic-geometric demonstration of Napoleon Theorem,which makes use of the Fermat point. Some insights on the topic related toconvex Quadrilaterals will be made. Si richiama una dimostrazione di tipo sintetico-geometrico del Teoremadi N... see more

A recent controversy has brewed over whether or not the emergence of bitcoin, as a new medium of exchange, is in accordance with Mises’s regression theorem. The main question in the debate seems to be, is bitcoin valued in direct use? The present paper co... see more

One solves Markov moment and Mazur-Orlicz problems in concrete spaces of functions and respectively operators. One uses earlier results, as well as recent theorems on the subject. One characterizes the existence of a solution, or one gives sufficient cond... see more

One recalls the relationship between the Markov moment problem and extension of linear functionals (or operators), with two constraints. One states necessary and sufficient conditions for the existence of solutions of some abstract vector-valued Markov mo... see more

This paper begins with the basic concepts of chain comlexes of fuzzy soft modules. Later, we introduce short exact sequence of fuzzy soft modules and prove that split short exact sequence of fuzzy soft chain complex. Naturally, we want to investigate whet... see more

In this work, we provide a proof of the so-called Karp's theorem in a different approach. We use the unique continuation principle together with the monotonicity of eigenvalues for the negative Laplace operator. This method is new and would be a... see more

In this paper we prove some new conditions for Cauchy sequences by using the diameter of orbit in partial metric spaces. A fixed point theorem for Meir-Keeler type contractions in this space is established.

This paper is devoted to solving multidimensional anticipated backward stochastic differential equations (anticipated BSDEs for short) with a kind of non-Lipschitz generators. We establish the existence and uniqueness result for L2 solutions of this kind ... see more

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