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math.CO2012★ 4 cited
Martin Gardner's minimum no-3-in-a-line problem
Alec S. Cooper, Oleg Pikhurko, John R. Schmitt +1
In Martin Gardner's October, 1976 Mathematical Games column in Scientific American, he posed the following problem: "What is the smallest number of [queens] you can put on a board…
math.CO2012
Transition matrices for symmetric and quasisymmetric Hall-Littlewood polynomials
Nicholas A. Loehr, Luis G. Serrano, Gregory S. Warrington
We introduce explicit combinatorial interpretations for the coefficients in some of the transition matrices relating to skew Hall-Littlewood polynomials P_lambda/mu(x;t) and Hivert…