## Decision problems for HNN groups and vector addition systems

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- by Michael Anshel PDF
- Math. Comp.
**30**(1976), 154-156 Request permission

## Abstract:

Our purpose is to show the equivalence of the conjugacy problem for certain*HNN*extensions of the infinite cyclic groups and the reachability problem for the class of self-dual vector addition systems. In addition, we extend an endomorphism theorem of the authorβs to a homomorphism theorem and indicate a problem related to the isomorphism problem for a class of

*HNN*groups.

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## Additional Information

- © Copyright 1976 American Mathematical Society
- Journal: Math. Comp.
**30**(1976), 154-156 - MSC: Primary 20F10; Secondary 02G05, 68A10
- DOI: https://doi.org/10.1090/S0025-5718-1976-0396766-4
- MathSciNet review: 0396766