“…The proof is analogous to that of Lemma 3. 28,14,30,34,3,20,54,36,33,40,41,9,56,26,51,60,18,42,29,39,17,46,58,47,10,15,70,62,13,32,59,57,31,66,22,24,67,48,27,35,50,45,12,23,11,52,4,64,7,53,25,16,61,21,44,6,5,68,…”
Section: Twisted-twisted Typementioning
confidence: 99%
“…The first examples of 2-arc-transitive graphs of PA type were given by Li and Seress [22] and studied further by Li, Seress, and Song [23]. Another family of quasiprimitive 2-arc-transitive graphs of PA type were constructed by Li, Ling, and Wu in [21].…”
We study locally s-arc-transitive graphs arising from the quasiprimitive product action (PA). We prove that, for any locally (G, 2)-arc-transitive graph with G acting quasiprimitively with type PA on both G-orbits of vertices, the group G does not act primitively on either orbit. Moreover, we construct the first examples of locally s-arc-transitive graphs of PA type that are not standard double covers of s-arc-transitive graphs of PA type, answering the existence question for these graphs.
“…The proof is analogous to that of Lemma 3. 28,14,30,34,3,20,54,36,33,40,41,9,56,26,51,60,18,42,29,39,17,46,58,47,10,15,70,62,13,32,59,57,31,66,22,24,67,48,27,35,50,45,12,23,11,52,4,64,7,53,25,16,61,21,44,6,5,68,…”
Section: Twisted-twisted Typementioning
confidence: 99%
“…The first examples of 2-arc-transitive graphs of PA type were given by Li and Seress [22] and studied further by Li, Seress, and Song [23]. Another family of quasiprimitive 2-arc-transitive graphs of PA type were constructed by Li, Ling, and Wu in [21].…”
We study locally s-arc-transitive graphs arising from the quasiprimitive product action (PA). We prove that, for any locally (G, 2)-arc-transitive graph with G acting quasiprimitively with type PA on both G-orbits of vertices, the group G does not act primitively on either orbit. Moreover, we construct the first examples of locally s-arc-transitive graphs of PA type that are not standard double covers of s-arc-transitive graphs of PA type, answering the existence question for these graphs.
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