2 papers
math.CO2022
Intrinsically projectively linked graphs
Joel Foisy, Luis Ángel Topete Galván, Evan Knowles +3
A graph is intrinsically projectively linked (IPL) if its every embedding in projective space contains a nonsplit link. Some minor-minimal IPL graphs have been found previously. We…
math.CO2022
Links in projective planar graphs
Joel Foisy, Luis Ángel Topete Galván, Evan Knowles +3
A graph is nonseparating projective planar if has a projective planar embedding without a nonsplit link. Nonseparating projective planar graphs are closed under taking mino…