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Stochastic matrices and a property of the infinite sequences of linear functionals
Authors:Roberto Beneduci
Affiliation:Dipartimento di Matematica, Università della Calabria and Istituto Nazionale di Fisica Nucleare, sezione di Cosenza, 87036 Arcavacata di Rende (CS), Italy
Abstract:Our starting point is the proof of the following property of a particular class of matrices. Let T={Ti,j} be a n×m non-negative matrix such that ∑jTi,j=1 for each i. Suppose that for every pair of indices (i,j), there exists an index l such that Ti,lTj,l. Then, there exists a real vector k=(k1,k2,…,km)T,kikj,ij;0<ki?1, such that, View the MathML source if ij.Then, we apply that property of matrices to probability theory. Let us consider an infinite sequence of linear functionals View the MathML source, corresponding to an infinite sequence of probability measures {μ(·)(i)}iN, on the Borel σ-algebra View the MathML source such that, View the MathML source. The property of matrices described above allows us to construct a real bounded one-to-one piecewise continuous and continuous from the left function f such that
View the MathML source
Keywords:15A51   28Axx
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