Relationships of convolution products, generalized transforms and the first variation on function space. Chang, Seung Jun; Choi, Jae Gil — 2002 International Journal of Mathematics and Mathematical Sciences
Conditional generalized analytic Feynman integrals and a generalized integral equation. Chang, Seung Jun; Kang, Soon Ja; Skoug, David — 2000 International Journal of Mathematics and Mathematical Sciences