22 citations · 25 across the 3 of their papers we have counts for
3 papers
math.AG2004★ 3 cited
On tangents to quadric surfaces
Ciprian Borcea, Xavier Goaoc, Sylvain Lazard +1
We study the variety of common tangents for up to four quadric surfaces in projective three-space, with particular regard to configurations of four quadrics admitting a continuum o…
math.MG2002
On the Number of Embeddings of Minimally Rigid Graphs
Ciprian Borcea, Ileana Streinu
Rigid frameworks in some Euclidian space are embedded graphs having a unique local realization (up to Euclidian motions) for the given edge lengths, although globally they may have…
math.AG2002★ 22 cited
Point Configurations and Cayley-Menger Varieties
Ciprian S. Borcea
Equivalence classes of -point configurations in Euclidean, Hermitian, and quaternionic spaces are related, respectively, to classical determinantal varieties of symmetric, gener…