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» The Polytope of Degree Partitions
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SODA
2007
ACM
99views Algorithms» more  SODA 2007»
15 years 1 months ago
Matroids, secretary problems, and online mechanisms
We study a generalization of the classical secretary problem which we call the “matroid secretary problem”. In this problem, the elements of a matroid are presented to an onli...
Moshe Babaioff, Nicole Immorlica, Robert Kleinberg
DEFORM
2000
15 years 1 months ago
Parametrization and Range of Motion of the Ball-and-Socket Joint
The ball-and-socket joint model is used to represent articulations with three rotational degrees of freedom (DOF), such as the human shoulder and the hip. The goal of this paper i...
Paolo Baerlocher, Ronan Boulic
DM
2008
69views more  DM 2008»
14 years 12 months ago
New identities for 7-cores with prescribed BG-rank
Let be a partition. BG-rank() is defined as an alternating sum of parities of parts of [1]. In [2], Berkovich and Garvan found theta series representations for the t-core generat...
Alexander Berkovich, Hamza Yesilyurt
EJC
2008
14 years 12 months ago
Grad and classes with bounded expansion II. Algorithmic aspects
Abstract. Classes of graphs with bounded expansion are a generalization of both proper minor closed classes and degree bounded classes. Such classes are based on a new invariant, t...
Jaroslav Nesetril, Patrice Ossona de Mendez
JCT
2008
76views more  JCT 2008»
14 years 11 months ago
Quadruple systems with independent neighborhoods
A 4-graph is odd if its vertex set can be partitioned into two sets so that every edge intersects both parts in an odd number of points. Let b(n) = max n 3 + (n - ) 3 = 1 2 + o...
Zoltán Füredi, Dhruv Mubayi, Oleg Pikh...