Automorphism groups of symmetric graphs of valency 3
Journal of Combinatorial Theory Series B - Series B
Imprimitive symmetric graphs, 3-arc graphs and 1-designs
Discrete Mathematics - Algebraic and topological methods in graph theory
Constructing a class of symmetric graphs
European Journal of Combinatorics
On 2-arc-transitivity of Cayley graphs
Journal of Combinatorial Theory Series B
Almost Covers Of 2-Arc Transitive Graphs
Combinatorica
Finite symmetric graphs with two-arc transitive quotients
Journal of Combinatorial Theory Series B
A Local Analysis of Imprimitive Symmetric Graphs
Journal of Algebraic Combinatorics: An International Journal
Finite symmetric graphs with two-arc transitive quotients II
Journal of Graph Theory
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Let @C be a G-symmetric graph, and let B be a nontrivial G-invariant partition of the vertex set of @C. This paper aims to characterize (@C,G) under the conditions that the quotient graph @C"B is (G,2)-arc transitive and the induced subgraph between two adjacent blocks is 2@?K"2 or K"2","2. The results answer two questions about the relationship between @C and @C"B for this class of graphs.