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The Compressed Word Problem in HNN-Extensions

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The Compressed Word Problem for Groups

Part of the book series: SpringerBriefs in Mathematics ((BRIEFSMATH))

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Abstract

In this chapter we prove two further important transfer theorems for the compressed word problem:

  • The compressed word problem for a multiple HNN-extension of a base group H over finite associated subgroups is polynomial time Turing-reducible to the compressed word problem for H.

  • The compressed word problem for an amalgamated product of group H 1 and H 2 with finite amalgamated subgroups is polynomial time Turing-reducible to the compressed word problems for H 1 and H 2.

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© 2014 Markus Lohrey

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Lohrey, M. (2014). The Compressed Word Problem in HNN-Extensions. In: The Compressed Word Problem for Groups. SpringerBriefs in Mathematics. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-0748-9_6

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