arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2407.07083cs.LO
收藏

基于量词消去的NP内整数线性指数规划

Integer Linear-Exponential Programming in NP by Quantifier Elimination

Dmitry Chistikov, Alessio Mansutti, Mikhail R. Starchak

AI总结:

本文提出基于量词消去的NP过程判定整数线性指数约束系统可解性,证明对应存在性理论的可满足性为NP完全,改进了EXPSPACE上界,并得到整数线性规划的非确定性多项式时间高斯消去变体。

摘要:

本文提出了一种NP过程,用于判定线性指数约束系统是否存在整数解。线性指数系统通过指数项$2^x$和余数项${(x \bmod 2^y)}$扩展了标准整数线性规划。我们的结果表明,结构$(\n,0,1,+,2^{(\u00b7)},V_2(\u00b7,\u00b7),\u2264)$的存在性理论的可满足性问题是NP完全的,从而改进了近期的EXPSPACE上界。该理论用指数函数$x \u21a6 2^x$和二元谓词$V_2(x,y)$(当且仅当$y \u2265 1$是整除$x$的最大2的幂时为真)扩展了Presburger算术的存在性片段。\n 我们求解线性指数系统的过程使用了量词消去方法。作为副产物,我们将经典的高斯变量消去修改为用于整数线性规划(即存在性Presburger算术)的非确定性多项式时间过程。

英文摘要:

This paper provides an NP procedure that decides whether a linear-exponential system of constraints has an integer solution. Linear-exponential systems extend standard integer linear programs with exponential terms $2^x$ and remainder terms ${(x \bmod 2^y)}$. Our result implies that the existential theory of the structure $(\mathbb{N},0,1,+,2^{(\cdot)},V_2(\cdot,\cdot),\leq)$ has an NP-complete satisfiability problem, thus improving upon a recent EXPSPACE upper bound. This theory extends the existential fragment of Presburger arithmetic with the exponentiation function $x \mapsto 2^x$ and the binary predicate $V_2(x,y)$ that is true whenever $y \geq 1$ is the largest power of $2$ dividing $x$. Our procedure for solving linear-exponential systems uses the method of quantifier elimination. As a by-product, we modify the classical Gaussian variable elimination into a non-deterministic polynomial-time procedure for integer linear programming (or: existential Presburger arithmetic).

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。

↑