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Achromatic index of \(K_{12}\)
Ars Comb., 1997The achromatic index of a graph \(G\) is the maximum integer \(k\) such that there exists a proper colouring of the edges (i.e. in which no two adjacent edges have the same colour) in which each pair of colours appear on some pair of adjacent edges. The achromatic index of the complete graph \(K_n\) with \(n\) vertices is denoted by \(A(n)\).
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Broadband achromatic metalens in terahertz regime
Science Bulletin, 2019Zhixiong Shen, Jingya Xie, Nianxi Xu
exaly
1994
The chapter reviews classical research and recent advancements on perceived transparency, from the point of view of perceptual organization. Topological, figural and photometric conditions are discussed, as well as percept-percept couplings involving layer decomposition.
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The chapter reviews classical research and recent advancements on perceived transparency, from the point of view of perceptual organization. Topological, figural and photometric conditions are discussed, as well as percept-percept couplings involving layer decomposition.
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