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 ...

Remember that to find the equation of a straight line you need to know its gradient and a point on the line. In some instances you are told the value of the gradient, however there are times where you ...

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 ...