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A graph is called a pseudo-core if every endomorphism is either an automorphism or a colouring.
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L.-P. Huang, Z.-J. Huang, C.-K. Li and N.-S. Sze, Graphs associated with matrices over finite fields and their endomorphisms, Linear Algebra Appl. 447 (2014) 2–25
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L.-P. Huang, J.-Q. Huang and K. Zhao, On endomorphisms of alternating forms graph, Discrete Math. 338 (2015) 110–121
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2010
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2015
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