The cogrowth series for BS(N, N) is D-finite

Autor: Murray Elder, Andrew Rechnitzer, Esaias J. Janse van Rensburg, Thomas Wong
Rok vydání: 2014
Předmět:
Zdroj: International Journal of Algebra and Computation. 24:171-187
ISSN: 1793-6500
0218-1967
DOI: 10.1142/s0218196714500106
Popis: We compute the cogrowth series for Baumslag–Solitar groups BS (N, N) = 〈a,b|aNb = baN〉, which we show to be D-finite. It follows that their cogrowth rates are algebraic numbers.
Databáze: OpenAIRE