Möbius- und Laguerre-Geometrien über schwach konvexen Semiflächen Helmut Mäurer OriginalPaper Pages: 355 - 386
Heisenberg's commutation relations and Pontryagin's duality theorem S. Sankaran OriginalPaper Pages: 387 - 390
Anti-isomorphisms of the endomorphism rings of torsion-free modules Leonard Gewirtzman OriginalPaper Pages: 391 - 400
Some results on multiplicity of solutions in frame mappings Masami Wakae OriginalPaper Pages: 407 - 421