2 papers
math.GR2011
Automatic structures and growth functions for finitely generated abelian groups
Satoshi Kamei
In this paper, we consider the formal power series whose n-th coefficient is the number of copies of a given finite graph in the ball of radius n centred at the identity element in…
math.CO2011
Deciding nonconstructibility of 3-balls with strict spanning edges
Satoshi Kamei
In this paper, we consider constructibility of simplicial 3-balls. In many cases, examining 1-dimensional subcomplexes of a simplicial 3-ball is efficient to solve the decision pro…