On the Convolution Equation P = P ∗ Q of Choquet and Deny for Probability Measures on Semigroups
A. Mukherjea · Proceedings of the American Mathematical Society · 1972
A. Mukherjea, On the Convolution Equation $P = P \ast Q$ of Choquet and Deny for Probability Measures on Semigroups, Proceedings of the American Mathematical Society, Vol. 32, No. 2 (Apr., 1972), pp. 457-463