Presburger Arithmetic with algebraic scalar multiplications

Author:

Hieronymi Philipp,Nguyen Danny,Pak Igor

Abstract

We consider Presburger arithmetic (PA) extended by scalar multiplication by an algebraic irrational number $\alpha$, and call this extension $\alpha$-Presburger arithmetic ($\alpha$-PA). We show that the complexity of deciding sentences in $\alpha$-PA is substantially harder than in PA. Indeed, when $\alpha$ is quadratic and $r\geq 4$, deciding $\alpha$-PA sentences with $r$ alternating quantifier blocks and at most $c\ r$ variables and inequalities requires space at least $K 2^{\cdot^{\cdot^{\cdot^{2^{C\ell(S)}}}}}$ (tower of height $r-3$), where the constants $c, K, C>0$ only depend on $\alpha$, and $\ell(S)$ is the length of the given $\alpha$-PA sentence $S$. Furthermore deciding $\exists^{6}\forall^{4}\exists^{11}$ $\alpha$-PA sentences with at most $k$ inequalities is PSPACE-hard, where $k$ is another constant depending only on~$\alpha$. When $\alpha$ is non-quadratic, already four alternating quantifier blocks suffice for undecidability of $\alpha$-PA sentences.

Publisher

Centre pour la Communication Scientifique Directe (CCSD)

Subject

General Computer Science,Theoretical Computer Science

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Decidability bounds for Presburger arithmetic extended by sine;Annals of Pure and Applied Logic;2024-12

2. Decidability for Sturmian words;Logical Methods in Computer Science;2024-08-05

3. A strong version of Cobham’s theorem;Proceedings of the 54th Annual ACM SIGACT Symposium on Theory of Computing;2022-06-09

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