3 papers
math.NT2014
Automorphic forms for triangle groups: Integrality properties
Hossein Movasati, Khosro M. Shokri
We classify all primes appearing in the denominators of the Hauptmodul and modular forms for non-arithmetic triangle groups with a cusp. These primes have a congruence conditio…
math.NT2013
Automorphic forms for triangle groups
Charles F. Doran, Terry Gannon, Hossein Movasati +1
For triangle groups, the (quasi-)automorphic forms are known just as explicitly as for the modular group SL. We collect these expressions here, and then interpret them us…
math.NT2013
Modular-type functions attached to Calabi-Yau varieties: integrality properties
Hossein Movasati, Khosro Monsef Shokri
We study the integrality properties of the coefficients of the mirror map attached to the generalized hypergeometric function with rational parameters and with a maxi…