Proceedings of the Edinburgh Mathematical Society (Series 2)

Research Article

A time-like surface in Minkowski 3-space which contains pseudocircles

Shyuichi Izumiyaa1 and Akihiro Takiyamaa1

a1 Department of Mathematics, Faculty of Science, Hokkaido University, Sapporo 060, Japan


Simple characterizations of a pseudosphere or a plane in Minkowski 3-space by the existence of pseudocircles are given.

(Received April 19 1995)