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CMA
2010
155views more  CMA 2010»
13 years 5 months ago
Approximate solutions to a parameterized sixth order boundary value problem
In this paper, the homotopy analysis method (HAM) is applied to solve a parameterized sixth order boundary value problem which, for large parameter values, cannot be solved by oth...
Songxin Liang, David J. Jeffrey
CPM
2004
Springer
120views Combinatorics» more  CPM 2004»
14 years 1 months ago
Polynomial-Time Algorithms for the Ordered Maximum Agreement Subtree Problem
For a set of rooted, unordered, distinctly leaf-labeled trees, the NP-hard maximum agreement subtree problem (MAST) asks for a tree contained (up to isomorphism or homeomorphism) i...
Anders Dessmark, Jesper Jansson, Andrzej Lingas, E...
INFORMS
2010
147views more  INFORMS 2010»
13 years 5 months ago
Exact Algorithms for the Quadratic Linear Ordering Problem
The quadratic linear ordering problem naturally generalizes various optimization problems, such as bipartite crossing minimization or the betweenness problem, which includes linear...
Christoph Buchheim, Angelika Wiegele, Lanbo Zheng
GECCO
2003
Springer
122views Optimization» more  GECCO 2003»
14 years 1 months ago
Designing A Hybrid Genetic Algorithm for the Linear Ordering Problem
The Linear Ordering Problem(LOP), which is a well-known NP-hard problem, has numerous applications in various fields. Using this problem as an example, we illustrate a general pro...
Gaofeng Huang, Andrew Lim
CORR
2007
Springer
116views Education» more  CORR 2007»
13 years 7 months ago
Complexity of some Path Problems in DAGs and Linear Orders
We investigate here the computational complexity of three natural problems in directed acyclic graphs. We prove their NP Completeness and consider their restrictions to linear orde...
Serge Burckel