By using the Smith normal form of polynomial matrix and algebraic methods, this paper discusses the solvability for the linear matrix equation ∑AiXBi = C over
A reaction diffusion system arising in the theory of superconductivity is consideredand its many kinds of analytic solutions are constructed by the Painleve ana
A new method to compute the first derivative of 3-D Radon transform is given for cone-beam data taken from any orbit. Smith [Ⅰ1] and Grangeat [5] even derived