Conference paper
Real time counter mchines preliminary version
Patrick C. Fischer, Albert R. Meyer, et al.
SWAT 1967
The n-dimensional origin-crossing language, On, is a language each of whose words describes a walk through n-dimensional space beginning and ending at the origin. For each n, On is real-time recognizable by an n-counter machine but not by any (n - 1)-counter machine. In contrast, for all n, On is real-time recognizable by a one-tape Turing machine. © 1968 Springer-Verlag New York Inc.
Patrick C. Fischer, Albert R. Meyer, et al.
SWAT 1967
Patrick C. Fischer, Albert R. Meyer, et al.
Journal of Computer and System Sciences
Albert R. Meyer, Arnold L. Rosenberg, et al.
SWAT 1967
Arnold L. Rosenberg
Journal of the ACM