2 papers
math.CO2026
Further Results on the Quadratic Embedding Constants of Corona Graphs
Ferdi, Edy Tri Baskoro, Aditya Purwa Santika
The quadratic embedding constant (QEC) is a numerical invariant associated with quadratic embeddings of graphs into Hilbert spaces, and it is characterized in terms of the distance…
math.CO2025
Quadratic Embedding Constants of Corona Graphs
Ferdi, Edy Tri Baskoro, Nobuaki Obata +1
The quadratic embedding constant (QEC) of a connected graph is defined to be the maximum of the quadratic function associated with its distance matrix on a certain unit sphere of c…