Titlebook: ;

魔鬼在游行

无辜

Approximability of Economic Equilibrium for Housing Markets with Duplicate Houses,oximation the value sat . was proposed: the maximum number of satisfied agents in the market ., where an agent is said to be satisfied if, given a set of prices, he gets a most preferred house in his budget set. Clearly, market . admits an economic equilibrium if sat(.) is equal to the total number

表示问

正常

List Coloring in the Absence of a Linear Forest,roblem requires in addition that every vertex . must receive a color from some given set .(.) ⊆ {1,…,.}. Let .. denote the path on . vertices, and . + . and . the disjoint union of two graphs . and . and . copies of ., respectively. For any two fixed integers . and ., we show that ... can be solved

prediabetes

马笼头

助记

图表证明

Inelasticity

Empires Make Cartography Hard: The Complexity of the Empire Colouring Problem,ve that the problem can be solved in polynomial time using . colours on maps whose underlying adjacency graph has no induced subgraph of average degree larger than ./.. However, if . ≥ 3, the problem is NP-hard for forests of paths of arbitrary lengths (if . < .) for trees (if . ≥ 2 and . < 2.) and

Pelvic-Floor