Web18 apr. 2024 · 以下4种方法可以提高MIP的求解效率: Presolve, Cutting Planes, Heuristics, Parallelism (1)预处理Presolve 是指在分支定界之前进行的操作。 可以减少问题的规模,或者可以收紧问题的formulation。 简而言之,就是预处理使得问题更易求解。 (2)割平面Cutting Planes 也是收紧约束的一种方法,是通过移除一些分数解的方式实现的(没 … Web1 jul. 2000 · An existence result for the finite element solution and convergence results are proved near a nonsingular solution as well as the description of the regularity of any solution. This paper is concerned with the mixed formulation of the Boussinesq equations in two-dimensional domains and its numerical approximation. The paper deals first with …
(PDF) On the advantages of mixed formulation and higher
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