The reflexible hypermaps of characteristic
On chirality groups and regular coverings of regular oriented hypermaps
We prove that if the Walsh bipartite map of a regular oriented hypermap is also orientably regular then both and have the same chirality group, the covering core of (the smallest regular map covering ) is the Walsh bipartite map of the covering core of and the closure cover of (the greatest regular map covered by ) is the Walsh bipartite map of the closure cover of . We apply these results to the family of toroidal chiral hypermaps induced by the family of toroidal bipartite maps...
Chiral hypermaps with few hyperfaces
Chiral hypermaps of small genus.
Bipartite-uniform hypermaps on the sphere.
Platonic hypermaps.
Rotary hypermaps of genus 2.
Double coverings and reflexive abelian hypermaps.
On double coverings of some rotary hypermaps.
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