In recent years, artificial neural networks have received increasing attention as a decision making tool when prediction of financial time series is concerned. Modeling issues associated with artificial neural network model ...

In this paper, we discuss the necessary and sufficient conditions for an operator in a Hilbert space to be unitarily equivalent to a unilateral shift. Consequently, we discuss the problem when a commutative sequence of ...

This paper is resesrch on mathematical formular on special charateristics of non-normal operators

With mathematics analyst’ interest shifting from finite-dimensional inner product spaces to infinite-dimensional Hilbert spaces and with consequent shift of matrices to linear operation, their focus of attention changed ...

This study explains the factors influencing marketing of alcoholic beverages in Kenya majoring on East African Breweries Ltd, a leading company playing a major role in economic performance of the East African countries. ...