The endomorphism monoids and automorphism groups of Cayley graphs of semigroups
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DOI: 10.1007/s00233-017-9875-4
Abstract: In this note, we introduce the notions of color-permutable automorphisms and color-permutable vertex-transitive Cayley graphs of semigroups. As a main result, for a finite monoid S and a generating set C of S, we explicitly… read more here.
Keywords: graphs semigroups; color; endomorphism; automorphism ... See more keywords
The second largest eigenvalues of some Cayley graphs on alternating groups
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DOI: 10.1007/s10801-018-0843-1
Abstract: Let $$A_n$$An denote the alternating group of degree n with $$n\ge 3$$n≥3. The alternating group graph $$AG_n$$AGn, extended alternating group graph $$EAG_n$$EAGn and complete alternating group graph $$CAG_n$$CAGn are the Cayley graphs $$\mathrm {Cay}(A_n,T_1)$$Cay(An,T1), $$\mathrm… read more here.
Keywords: second largest; alternating group; cayley graphs; largest eigenvalues ... See more keywords
The morphology evolution, tunable down-conversion luminescence, and energy transfer of [CaY]F2 crystals doped with Li+/Ce3+/Tb3.
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DOI: 10.1039/d0dt02955f
Abstract: Octahedral [CaY]F2 crystals with an average particle size of 1 μm were synthesized via a mild one-step hydrothermal route without employing any surfactants. Various morphologies, including cubes, truncated cubes, truncated octahedrons, and spheres, were achieved… read more here.
Keywords: energy transfer; luminescence; tb3; cay ... See more keywords
The Bramble Cay melomys Melomys rubicola (Rodentia: Muridae): a first mammalian extinction caused by human-induced climate change?
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DOI: 10.1071/wr16157
Abstract: Abstract Aims. Sea-level rise is one of the most certain consequences of global warming and is predicted to exert significant adverse effects on wildlife in coastal habitats worldwide. Terrestrial fauna inhabiting low-lying islands are likely… read more here.
Keywords: cay melomys; cay; climate change; bramble cay ... See more keywords