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Right triangular spherical dihedral f--tilings with two pairs of congruent sides

Avelino, Catarina P.; Santos, Altino F.

Applied Mathematics & Information Sciences, 7(3) (2013), 889-907
http://t.naturalspublishing.com/files/published/133g557s1c84gt.pdf

In this paper we present the study of dihedral f-tilings by spherical right triangles on two distinct cases of adjacency and with two pairs of congruent sides. Some aspects of the combinatorial structure are given.