arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.08139math.OCcs.NAmath.NA
收藏

Lasserre等级的收敛:一般情况

Convergence of Lasserre's hierarchy: the general case

Matteo Tacchi

摘要:

Lasserre的矩-SOS层次结构由具有矩松弛和平方和(SOS)强化的广义矩问题(GMP)的近似实例组成,这些矩松弛和平方和(SOS)强化可归结为凸半定规划(SDP)问题。由于初始GMP的通用性,该技术的应用是无数的,并且可以引用其中的多项式最优化问题(POP)、最优控制问题(OCP)、体积计算问题、稳定集近似问题和求解非线性偏微分方程(PDE)。原始GMP的解决方案,然后近似与有限截断其时刻序列。对于每个应用程序,证明这些截断收敛到最佳的时刻序列提供了宝贵的洞察力的问题,包括收敛到原来的GMP的最优值的放松值。这说明提出了一个一般的证明,这种收敛性,无论面临的问题,在简单的标准假设。作为这个证明的一个副产品,人们也获得了强大的对偶性质,在无限维GMP和其有限维松弛。

英文摘要:

Lasserre's moment-SOS hierarchy consists of approximating instances of the generalized moment problem (GMP) with moment relaxations and sums-of-squares (SOS) strenghtenings that boil down to convex semidefinite programming (SDP) problems. Due to the generality of the initial GMP, applications of this technology are countless, and one can cite among them the polynomial optimization problem (POP), the optimal control problem (OCP), the volume computation problem, stability sets approximation problems, and solving nonlinear partial differential equations (PDE). The solution to the original GMP is then approximated with finite truncatures of its moment sequence. For each application, proving convergence of these truncatures towards the optimal moment sequence gives valuable insight on the problem, including convergence of the relaxed values to the original GMP's optimal value. This note proposes a general proof of such convergence, regardless the problem one is faced with, under simple standard assumptions. As a byproduct of this proof, one also obtains strong duality properties both in the infinite dimensional GMP and its finite dimensional relaxations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑