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We study the quantum version of the random $K$-Satisfiability problem in the presence of the external magnetic field $\Gamma$ applied in the transverse direction. We derive the replica-symmetric free energy functional within static…

无序系统与神经网络 · 物理学 2009-11-13 S. Knysh , V. N. Smelyanskiy

The Random Satisfiability problem has been intensively studied for decades. For a number of reasons the focus of this study has mostly been on the model, in which instances are sampled uniformly at random from a set of formulas satisfying…

离散数学 · 计算机科学 2019-05-14 Oleksii Omelchenko , Andrei A. Bulatov

Boolean Satisfiability (SAT) problems are expressed as mathematical formulas. This paper presents a matrix representation for these SAT problems. It shows how to use this matrix representation to get the full set of valid satisfying…

计算复杂性 · 计算机科学 2025-05-20 Paul W. Homer

We describe an algorithm to solve the problem of Boolean CNF-Satisfiability when the input formula is chosen randomly. We build upon the algorithms of Sch{\"{o}}ning 1999 and Dantsin et al.~in 2002. The Sch{\"{o}}ning algorithm works by…

计算复杂性 · 计算机科学 2019-03-27 Andrea Lincoln , Adam Yedidia

We report a cluster of results on k-QSAT, the problem of quantum satisfiability for k-qubit projectors which generalizes classical satisfiability with k-bit clauses to the quantum setting. First we define the NP-complete problem of product…

量子物理 · 物理学 2010-07-02 C. R. Laumann , A. M. Läuchli , R. Moessner , A. Scardicchio , S. L. Sondhi

Using powerful Multicanonical Ensemble Monte Carlo methods from statistical physics we explore the realization space of random K satisfiability (KSAT) in search for computational hard problems, most likely the 'hardest problems'. We search…

统计力学 · 物理学 2014-12-18 Neuhaus Thomas

We derive an upper bound on the number of models for exact satisfiability (XSAT) of arbitrary CNF formulas F. The bound can be calculated solely from the distribution of positive and negated literals in the formula. For certain subsets of…

计算复杂性 · 计算机科学 2018-03-21 Bernd Schuh

In a network consisting of n nodes, our goal is to identify the most central k nodes with respect to the proposed definitions of centrality. Depending on the specific application, there exist several metrics for quantifying k-centrality,…

组合数学 · 数学 2024-06-11 Karim Shahbaz , Madhu N. Belur , Chayan Bhawal , Debasattam Pal

Partly on the basis of heuristic arguments from physics it has been suggested that the performance of certain types of algorithms on random $k$-SAT formulas is linked to phase transitions that affect the geometry of the set of satisfying…

组合数学 · 数学 2017-11-17 Amin Coja-Oghlan , Amir Haqshenas , Samuel Hetterich

This paper introduces SATformer, a novel Transformer-based approach for the Boolean Satisfiability (SAT) problem. Rather than solving the problem directly, SATformer approaches the problem from the opposite direction by focusing on…

人工智能 · 计算机科学 2024-03-13 Zhengyuan Shi , Min Li , Yi Liu , Sadaf Khan , Junhua Huang , Hui-Ling Zhen , Mingxuan Yuan , Qiang Xu

Quantum computer algorithms can exploit the structure of random satisfiability problems. This paper extends a previous empirical evaluation of such an algorithm and gives an approximate asymptotic analysis accounting for both the average…

量子物理 · 物理学 2007-05-23 Tad Hogg

Let F be a random k-SAT formula on n variables, formed by selecting uniformly and independently m = rn out of all possible k-clauses. It is well-known that if r>2^k ln 2, then the formula F is unsatisfiable with probability that tends to 1…

计算复杂性 · 计算机科学 2007-05-23 Dimitris Achlioptas , Yuval Peres

Random constraint satisfaction problems (CSPs) are known to exhibit threshold phenomena: given a uniformly random instance of a CSP with $n$ variables and $m$ clauses, there is a value of $m = \Omega(n)$ beyond which the CSP will be…

数据结构与算法 · 计算机科学 2016-11-07 Prasad Raghavendra , Satish Rao , Tselil Schramm

We study the maximization version of the fundamental graph coloring problem. Here the goal is to color the vertices of a k-colorable graph with k colors so that a maximum fraction of edges are properly colored (i.e. their endpoints receive…

计算复杂性 · 计算机科学 2015-05-14 Venkatesan Guruswami , Ali Kemal Sinop

We propose a method for exact circuit synthesis using a discrete gate set, as required for fault-tolerant quantum computing. Our approach translates the problem of synthesizing a gate specified by its unitary matrix into a boolean…

量子物理 · 物理学 2025-03-20 Élie Gouzien , Nicolas Sangouard

We introduce the problem of finding a satisfying assignment to a CNF formula that must further belong to a prescribed input subspace. Equivalent formulations of the problem include finding a point outside a union of subspaces (the…

数据结构与算法 · 计算机科学 2021-08-16 Vikraman Arvind , Venkatesan Guruswami

In this work, we focus on several completion problems for subclasses of chordal graphs: Minimum Fill-In, Interval Completion, Proper Interval Completion, Threshold Completion, and Trivially Perfect Completion. In these problems, the task is…

计算复杂性 · 计算机科学 2015-10-16 Ivan Bliznets , Marek Cygan , Pawel Komosa , Lukas Mach , Michal Pilipczuk

For arbitrary undirected graph $G$, we are designing SATISFIABILITY problem (SAT) for HCP, using tools of Boolean algebra only. The obtained SAT be the logic formulation of conditions for Hamiltonian cycle existence, and use $m$ Boolean…

计算机科学中的逻辑 · 计算机科学 2007-05-23 Anatoly D. Plotnikov

We determine under which conditions certain natural models of random constraint satisfaction problems have sharp thresholds of satisfiability. These models include graph and hypergraph homomorphism, the $(d,k,t)$-model, and binary…

组合数学 · 数学 2009-03-17 Hamed Hatami , Michael Molloy

This work studies fundamental limits for recovering the underlying correspondence among multiple correlated graphs. In the setting of inhomogeneous random graphs, we present and analyze a matching algorithm: first partially match the graphs…

数据结构与算法 · 计算机科学 2025-07-01 Taha Ameen , Bruce Hajek