4 papers
Multivariate growth and cogrowth
Rostislav Grigorchuk, Jean-Francois Quint, Asif Shaikh
We investigate a multivariate growth series associated with a regular language over an alphabet of cardinality Our focus is on lan…
Finitely generated subgroups of free groups as formal languages and their cogrowth
Arman Darbinyan, Rostislav Grigorchuk, Asif Shaikh
For finitely generated subgroups of a free group of finite rank , we study the language of reduced words that represent which is a regular language. Using th…
Galois coverings of Schreier graphs of groups generated by bounded automata
Asif Shaikh, Daniele D'Angeli, Hemant Bhate +1
We give a characterization of the covering Schreier graphs of groups generated by bounded automata to be Galois. We also investigate the zeta and L functions of Schreier graphs of…
Zeta functions of finite Schreier graphs and their zig zag products
Asif Shaikh, Hemant Bhate
We investigate the Ihara zeta functions of finite Schreier graphs of the Basilica group. We show that is sheeted unramified normal covering of $Γ_n, ~\forall~ n…