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pro vyhledávání: '"Bang, Caroline"'
A graph drawn in a surface is a near-quadrangulation if the sum of the lengths of the faces different from 4-faces is bounded by a fixed constant. We leverage duality between colorings and flows to design an efficient algorithm for 3-precoloring-exte
Externí odkaz:
http://arxiv.org/abs/2303.05583
Autor:
Bang, Caroline, von Bell, Matias, Culver, Eric, Dickson, Jessica, Dimitrov, Stoyan, Perrier, Rachel, Sundaram, Sheila
Publikováno v:
J. Integer Seq. 26 (2023), no. 2, Art. 23.2.7, 40 pp
We study three operations on Riordan arrays. First, we investigate when the sum of Riordan arrays yields another Riordan array. We characterize the $A$- and $Z$-sequences of these sums of Riordan arrays, and also identify an analog for $A$-sequences
Externí odkaz:
http://arxiv.org/abs/2210.02566
Autor:
Alameda, Joseph S., Bang, Caroline, Brennan, Zachary, Herzog, David P., Kritschgau, Jürgen, Sprangel, Elizabeth
This paper considers the $(n,k)$-Bernoulli--Laplace model in the case when there are two urns, the total number of red and white balls is the same, and the number of selections $k$ at each step is on the same asymptotic order as the number of balls $
Externí odkaz:
http://arxiv.org/abs/2203.08647
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