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Allouche and Shallit introduced the notion of a regular power series as a generalization of automatic sequences. Becker showed that all regular power series satisfy Mahler equations and conjectured equivalent conditions for the converse to be true. We prove a stronger form of Beckers conjecture for a subclass of Mahler power series.
In 1998, Allouche, Peyri`{e}re, Wen and Wen showed that the Hankel determinant $H_n$ of the Thue-Morse sequence over ${-1,1}$ satisfies $H_n/2^{n-1}equiv 1~(mathrm{mod}~2)$ for all $ngeq 1$. Inspired by this result, Fu and Han introduced emph{apwenia
It is a classical result of Mahler that for any rational number $alpha$ > 1 which is not an integer and any real 0 < c < 1, the set of positive integers n such that $alpha$ n < c n is necessarily finite. Here for any real x, x denotes the distance fr
In this paper we introduce the concept of clique disjoint edge sets in graphs. Then, for a graph $G$, we define the invariant $eta(G)$ as the maximum size of a clique disjoint edge set in $G$. We show that the regularity of the binomial edge ideal of
We identify a class of semi-modular forms invariant on special subgroups of $GL_2(mathbb Z)$, which includes classical modular forms together with complementary classes of functions that are also nice in a specific sense. We define an Eisenstein-like
The Dirichlet series $L_m(s)$ are of fundamental importance in number theory. Shanks defined the generalized Euler and class numbers in connection with these Dirichlet series, denoted by ${s_{m,n}}_{ngeq 0}$. We obtain a formula for the exponential g