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COMBINATORICS
2000
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13 years 4 months ago
Diagonal Checker-jumping and Eulerian Numbers for Color-signed Permutations
Abstract. We introduce color-signed permutations to obtain a very explicit combinatorial interpretation of the q-Eulerian identities of Brenti and some generalizations. In particul...
Niklas Eriksen, Henrik Eriksson, Kimmo Eriksson
PR
2008
138views more  PR 2008»
13 years 4 months ago
Computation of a face attractiveness index based on neoclassical canons, symmetry, and golden ratios
Analysis of attractiveness of faces has long been a topic of research. Literature has identified many different factors that can be related to attractiveness. In this research we ...
Kendra Schmid, David Marx, Ashok Samal