Cyclic overlattices, I
Cyclic overlattices, II (Diophantine approximation and sums of roots of unity)
Noncongruence subgroups of the Hecke groups G (...).
Maps on surfaces and Galois groups
Trigonometric diophantine equations (On vanishing sums of roots of unity)
The Farey graph.
Existence theorems for the matrix Riccati equation .
Infinitely many hypermaps of a given type and genus.
Shift-induced dynamical systems on partitions and compositions.
Number variance from a probabilistic perspective: infinite systems of independent Brownian motions and symmetric -stable processes.
Platonic hypermaps.
Rotary hypermaps of genus 2.
Double coverings and reflexive abelian hypermaps.
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