A conjecture of Biggs concerning the resistance of a distance-regular graph.
A family of tridiagonal pairs related to the quantum affine algebra .
A four-class association scheme derived from a hyperbolic quadric in .
A generalization of Jaeger-Nomura's Bose Mesner algebra associated to type II matrices
A category generalizing Jaeger-Nomura algebra associated to a spin model is given. It is used to prove some equivalence among the four conditions by Jaeger-Nomura for spin models of index 2.
A matrix representation of graphs and its spectrum as a graph invariant.
A new estimate for the vertex number of an edge-regular graph.
A prolific construction of strongly regular graphs with the -e. c. property.
A quasi-spectral characterization of strongly distance-regular graphs.
Affine transformations of a Leonard pair.
Amply regular graphs and block designs.
An eigenvalue characterization of antipodal distance-regular graphs.
Approximating the isoperimetric number of strongly regular graphs.
Association schemes and MacWilliams dualities for generalized Niederreiter-Rosenbloom-Tsfasman posets [Book]
Association schemes of affine type over finite rings.
Asymptotic spectral distributions of distance k-graphs of large-dimensional hypercubes
We derive the asymptotic spectral distribution of the distance k-graph of N-dimensional hypercube as N → ∞.