[3] viXra:1001.0031 [pdf] submitted on 22 Jan 2010
Authors: Dainis Zeps, Emanuels Grinbergs
Comments: 6 pages
We will call graph 1-H-graph if it is threeconnected and it has only one Hamiltonian circuit
Category: Combinatorics and Graph Theory
[2] viXra:1001.0030 [pdf] submitted on 22 Jan 2010
Authors: Dainis Zeps
Comments: 61 pages
Tutorial
Category: Combinatorics and Graph Theory
[1] viXra:1001.0029 [pdf] submitted on 22 Jan 2010
Authors: Dainis Zeps
Comments: 4 pages
4-critical wheel graphs of higher order are considered concerning their belonging
to free-planar or free-Hadwiger classes.
Category: Combinatorics and Graph Theory