17 citations · 17 across the 4 of their papers we have counts for
4 papers
Fundamental group in the projective knot theory
Julia Viro, Oleg Viro
In this paper, properties of a link in the projective space are related to properties of its group : is isotopic to a pr…
Configurations of skew lines
Julia Viro, Oleg Viro
This paper is an updated version of a survey on projective configurations of subspaces in general position. The preceding version was published in Russian in 1989 and in English in…
Lines and circles joining components of a link
Julia Viro
We estimate from below the number of lines meeting each of given 4 disjoint smooth closed curves in a given cyclic order in the real projective 3-space and in a given linear order…
Linking number in a projective space as the degree of a map
Julia Viro
For any two disjoint oriented circles embedded into the 3-dimensional real projective space, we construct a 3-dimensional configuration space and its map to the projective space su…