2 citations · 6 across the 8 of their papers we have counts for
4 papers · 1 filter
A classification of nilpotent 3-BCI groups
Hiroki Koike, István Kovács
Given a finite group and a subset the bi-Cayley graph $\bcay(G,S)$ is the graph whose vertex set is and edge set is $\{\{(x,0),(s x,1)\} : x…
Cubic symmetric graphs having an abelian automorphism group with two orbits
Hiroki Koike, István Kovács
Finite connected cubic symmetric graphs of girth 6 have been classified by K. Kutnar and D. Marušič, in particular, each of these graphs has an abelian automorphism group with two…
Flag Bicolorings, Pseudo-Orientations, and Double Covers of Maps
Hiroki Koike, Daniel Pellicer, Miguel Raggi +1
This paper discusses consistent flag bicolorings of maps and maniplexes, in their own right and as generalizations of orientations and pseudo-orientations. Furthermore, a related d…
The number of cyclic configurations of type and the isomorphism problem
Sergio Hiroki Koike-Quintanar, István Kovács, Tomaž Pisanski
A configuration of points and lines is cyclic if it has an automorphism which permutes its points in a full cycle. A closed formula is derived for the number of non-isomorphic conn…