$k$-point semidefinite programming bounds for equiangular lines

David de Laat, Fabrício Caluza Machado, Fernando Mário de Oliveira Filho +1

We give a hierarchy of $k$-point bounds extending the Delsarte-Goethals-Seidel linear programming $2$-point bound and the Bachoc-Vallentin semidefinite programming $3$-point bound…