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Distance-Regular Graphs

TLDR
In this paper, a connected simple graph with vertex set X of diameter d is considered, and the authors define Ri X2 by (x, y) Ri whenever x and y have graph distance.
Abstract
Consider a connected simple graph with vertex set X of diameter d. Define Ri X2 by (x, y) Ri whenever x and y have graph distance

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Citations
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Book ChapterDOI

Bounds for the Energy of Graphs

TL;DR: In this paper, the graph eigenvalues are labeled in a nonincreasing manner, i.e., λ1≥λ2≥⋯≥ λ n.
Journal ArticleDOI

Fastest mixing Markov chain on graphs with symmetries

TL;DR: In this paper, the authors exploit symmetry of a graph to efficiently compute the fastest mixing Markov chain on the graph (i.e., find the transition probabilities on the edges to minimize the second largest eigenvalue modulus of the transition probability matrix).
Proceedings ArticleDOI

Constant-rank codes

TL;DR: This paper shows that constant- rank codes are closely related to constant-dimension codes, and investigates the asymptotic behavior of the maximal cardinality of constant-rank codes with given rank weight and minimum rank distance.
Journal ArticleDOI

Symmetric Versus Non-Symmetric Spin Models for Link Invariants

TL;DR: In this article, it was shown that spin models of odd index are quasi-symmetric, which implies that they are associated with a certain class of symmetric spin models.
Proceedings ArticleDOI

Consensus-based distributed estimation of Laplacian eigenvalues of undirected graphs

TL;DR: This paper presents a novel algorithm for estimating eigenvalues of the Laplacian matrix associated with the graph describing the network topology of a multi-agent system or a wireless sensor network and formulates the problem as a constrained consensus problem.
References
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Journal ArticleDOI

Equilateral point sets in elliptic geometry

TL;DR: In this paper, the authors highlight equilateral point sets in elliptic geometry and show that Paley's construction may be reversed to obtain a C -matrix of order 46, in view of the existence of a Hadamard matrix of order 92.
BookDOI

On construction and identification of graphs

B. Weisfeiler
TL;DR: The problem of graph identification has been studied in the theory of permutation groups for a long time, see as mentioned in this paper for a discussion of the main points of the problem and an algorithm for graph identification.