Normal subgroups of even index in an NEC group

DOI10.1007/BF01194293zbMath0617.20026OpenAlexW2078413827MaRDI QIDQ1821870

J. A. Bujalance

Publication date: 1987

Published in: Archiv der Mathematik (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01194293

zbMATH Keywords

Klein surfaceautomorphism groupnormal subgroupsisometry groupsurface groupsignaturesNEC groupsfundamental regionnon-euclidean planesubgroup of even index

Mathematics Subject Classification ID

Subgroup theorems; subgroup growth (20E07) Other geometric groups, including crystallographic groups (20H15) Fundamental groups and their automorphisms (group-theoretic aspects) (20F34) Fuchsian groups and automorphic functions (aspects of compact Riemann surfaces and uniformization) (30F35)

Related Items

Equivalences of two-complexes, with applications to NEC-groups ⋮ Coverings between compact Klein surfaces ⋮ Groups of automorphisms of bordered non-orientable Klein surfaces of topological genus 3 ⋮ Involutions of compact Klein surfaces ⋮ On Nilpotent Groups of Automorphisms of Klein Surfaces ⋮ Hyperelliptic compact non-orientable Klein surfaces without boundary ⋮ Large Automorphism Groups of Hyperelliptic Klein Surfaces ⋮ Topological types of p-hyperelliptic real algebraic curves

Cites Work

• Unnamed Item
• Unnamed Item
• Unnamed Item
• On non-Euclidean crystallographic groups
• SUBGROUPS OF N.E.C. GROUPS AND FINITE PERMUTATION GROUPS
• Large automorphism groups of compact Klein surfaces with boundary, I
• On the order of automorphism groups of Klein surfaces
• The Classification of Non-Euclidean Plane Crystallographic Groups