Complexity Theory Retrospective

@inproceedings{Hartmanis1990ComplexityTR,
title={Complexity Theory Retrospective},
author={Juris Hartmanis},
booktitle={Springer New York},
year={1990}
}
In this paper we survey Juris Hartmanis' contributions to isomorphism problems. These problems are primarily of two forms. First, isomorphism problems for restricted programming systems, including the Harimanis-Baker conjecture that all polynomial time programming systems are polynomially isomorphic. Second, the research on isomorphisms, and particularly polynomial time isomorphisms for complete problems for various natural complexity classes, including the Berman-Hartmanis conjecture that all…
15 Citations

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