September 2009

A dimension result for polar sets of Brownian path in n-spaces

Let T(x,r) denote the occupation measure of the ball of radius r centered at x for Brownian motion {Xr},0 < t < 1 in Rn , n > 3. We consider the set and show that for a = 0,h(r) = r2 (logr)λ, λ > 1. Moreover, E0 n Ea = ø for a > 0. We deduce that the Hausdorff dimension of  E0 is 2 for n > 3   Key words: Brownian motion, Hausdorff dimension,...

Author(s):   A. C. Okoroafor and P. U. Uzoma

September 2009

Causal relationship between gross domestic product and personal consumption expenditure of Nigeria

  This study employed regression analysis to investigate the casual relationship between gross domestic product and personal consumption expenditure of Nigeria using data from 1994 - 2007. A non insignificant value of 0.0514 was obtained as a slope coefficient indicating that an increase in gross domestic product has no significant effect on the personal consumption expenditure of Nigeria. This was further...

Author(s): Nwabueze Joy Chioma

September 2009

Adaptation of the preemptive handoff scheme in an integrated mobile communication environment

  A new preemptive handoff scheme in integrated mobile communication environment is presented in this paper. The preemptive handoff schemes have worked in such a way that data types of lesser priority have been preemptive in an ad-hoc fashion. In the proposed scheme, the cell is divided into two regions, the usable area and the handoff region. The right of preemption has been given to incoming handoff real-time...

Author(s):   Chiranjeev Kumar and Rajeev Tripathi