The minimal positive solutions of the heat equation on X × (-∞, T) are determined for X a homogeneous Riemannian space. A simple proof of uniqueness for the positive Cauchy problem on a homogeneous ...
Mathematics of Computation, Vol. 32, No. 144 (Oct., 1978), pp. 1183-1213 (31 pages) This paper furnishes two classes of methods for calculating the best approximate solution of an operator equation in ...