We propose what be believe to be a novel approach to perform calculations for rational density functions using state space representations of the densities. By standard results from realisation theory, a rational probability density function is considered to be the transfer function of a linear system with generally complex entries. The stable part of this system is positive-real, which we call...

Recently, the authors developed a new synthesis technique for the design of higher-order Bode-type variable-amplitude (VA) wavedigital (WD) equalizers. The salient feature of the resulting VA WD equalizers is that they permit the continuous variation of the WD equalizer transfer function from a shaping transfer function to its inverse by changing the value of a single variable digital multiplie...

â â â  â â â â â  abstract: â  up to now, the impact of real exchange rate on the non-oil exports of iran has been mainly on focus. however, the more important aspect of the fluctuations in exchange rate is its degree of volatility which can have profound effect on the non-oil exports. hence, the main objective of this paper is to investigate the linkage between non-oil exports and the real exc...

it is proved that by using bounds of eigenvalues of an interval matrix, someconditions for checking positive deniteness and stability of interval matricescan be presented. these conditions have been proved previously with variousmethods and now we provide some new proofs for them with a unity method.furthermore we introduce a new necessary and sucient condition for checkingstability of interv...

This note is concerned with the and positive-real control problems for linear neutral delay systems. The purpose of control is the design of a memoryless state feedback controller which stabilizes the neutral delay system and reduces the norm of the closed-loop transfer function from the disturbance to the controlled output to a prescribed level, while the purpose of positive-real control is to...

gas reservoirs with low permeability (k

 Up to now, the impact of real exchange rate on the non-oil exports of Iran has been mainly on focus. However, the more important aspect of the fluctuations in exchange rate is its degree of volatility which can have profound effect on the non-oil exports. Hence, the main objective of this paper is to investigate the linkage between non-oil exports and the real exchange rate volatility for Iran...

We introduce a new five-parameter distribution called the beta exponentiated Gumbel (BEG) distribution that includes the beta Gumbel, exponentiated Gumbel and Gumbel distribution. Expressions for the distribution function, density function and rth moment of the new distribution and order statistics are obtained. We discuss estimation of the parameters by maximum liklelihood ...