Ole J. Heilmann

Some positive definite functions on sets and their application to the Ising model

Daniel J. Kleitman, Elliott H. Lieb, Seymour Sherman, 1971, Discret. Math..

The use of reflection as symmetry operation in connection with Peierls' argument

Ole J. Heilmann, O. J. Heilmann, 1974 .

Post-gelation Solutions to Smoluchowski's Coagulation Equation

Thor A. Bak, Ole J. Heilmann, O. J. Heilmann, 1994 .

A finite version of Smoluchowski's coagulation equation

Thor A. Bak, Ole J. Heilmann, 1991 .

Phase transition of hard hexagons on a triangular lattice

Ole J. Heilmann, Eigil Praestgaard, 1973 .