DOAJ
Open Access
2008
Enumeration of orientable coverings of a non-orientable manifold
Jin Ho Kwak
Alexander Mednykh
Roman Nedela
Abstrak
In this paper we solve the known V.A. Liskovets problem (1996) on the enumeration of orientable coverings over a non-orientable manifold with an arbitrary finitely generated fundamental group. As an application we obtain general formulas for the number of chiral and reflexible coverings over the manifold. As a further application, we count the chiral and reflexible maps and hypermaps on a closed orientable surface by the number of edges. Also, by this method the number of self-dual and Petri-dual maps can be determined. This will be done in forthcoming papers by authors.
Topik & Kata Kunci
Penulis (3)
J
Jin Ho Kwak
A
Alexander Mednykh
R
Roman Nedela
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2008
- Sumber Database
- DOAJ
- DOI
- 10.46298/dmtcs.3647
- Akses
- Open Access ✓