摘要
Schweizer and Sklar （Probabilistic Metric Spaces, North-Holland, 1983） proposed an open problem （Problem 7.9.10） to extend the theory of conjugate transforms to all the semigroups (△+, τT,L) where T is continuous and Archimedean and L is associative and commutative and satisfies （7.1.9） and possibly （7.1.10） in the book mentioned above. The purpose of this letter is to solve the above problem.
