This paper provides a new method for finding normal solutions of the Beltrami equation: homeomorphisms of the extended complex plane onto itself that are quasiconformal inside the unit disk and ...

We study the solvability of the equation AX + XA * = XA + A * X = I. In particular, we obtain various criteria for the normality of A in terms of Hermitian solutions of the equation which satisfy ...

Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA Society committee, and has a degree in accounting and finance from DePaul University. Vikki Velasquez is a researcher and writer who has ...

IT is well established that many of the distributions met in biological work approximate to the normal, and the modern developments of statistics are associated with this fact. Most of the techniques ...