3 papers
math.CO2026
Maniplexes as a Foundation for Cross-Linked Databases of Symmetric Objects
Katja Berčič, Gabe Cunningham, Andrés David Santamaría-Galvis +1
Graphs, maps on surfaces, and abstract polytopes are related combinatorial structures that tend to be studied by different communities using their own tools and databases. Maniplex…
math.CO2025
Eigenspace embeddings of imprimitive association schemes
Janoš Vidali
For a given symmetric association scheme and its eigenspace there exists a mapping of vertices of to unit vectors of , known as the spherical…
math.CO2011
Cones of Weighted and Partial Metrics
Michel Deza, Elena Deza, Janoš Vidali
A partial semimetric on V_n={1, ..., n} is a function f=((f_{ij})): V_n^2 -> R_>=0 satisfying f_ij=f_ji >= f_ii and f_ij+f_ik-f_jk-f_ii >= 0 for all i,j,k in V_n. The function f is…