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In this paper, we prove the maximal $L_p$-$L_q$ regularity of the compressible and incompressible two phase flow with phase transition in the model problem case with the help of ${\mathcal R}$-bounded solution operators corresponding to…

偏微分方程分析 · 数学 2015-01-13 Yoshihiro Shibata

We discuss a notion of phase transitions in multicomponent systems and clarify relations between deterministic chaotic and stochastic models of this type of systems. Connections between various definitions of SRB measures are considered as…

动力系统 · 数学 2009-11-07 Michael Blank , Leonid Bunimovich

This paper is concerned with a new optimization problem named "phase change rate maximization" for single-input-single-output linear time-invariant systems. The problem relates to two control problems, namely robust instability analysis…

系统与控制 · 电气工程与系统科学 2025-08-11 Shinji Hara , Chung-Yao Kao , Sei Zhen Khong , Tetsuya Iwasaki , Yutaka Hori

For several models of random constraint satisfaction problems, it was conjectured by physicists and later proved that a sharp satisfiability transition occurs. For random $k$-SAT and related models it happens at clause density $\alpha$…

概率论 · 数学 2019-05-16 Zsolt Bartha , Nike Sun , Yumeng Zhang

The quantified constraint satisfaction problem (QCSP) is a powerful framework for modelling computational problems. The general intractability of the QCSP has motivated the pursuit of restricted cases that avoid its maximal complexity. In…

计算复杂性 · 计算机科学 2007-05-23 Hubie Chen

The satisfiability threshold for constraint satisfaction problems is that value of the ratio of constraints (or clauses) to variables, above which the probability that a random instance of the problem has a solution is zero in the large…

统计力学 · 物理学 2020-07-21 Supriya Krishnamurthy , Sumedha

In a broad class of sparse random constraint satisfaction problems(CSP), deep heuristics from statistical physics predict that there is a condensation phase transition before the satisfiability threshold, governed by one-step replica…

概率论 · 数学 2023-12-14 Danny Nam , Allan Sly , Youngtak Sohn

In this paper we study random linear systems with $k$ variables per equation over the finite field GF(2), or equivalently $k$-XOR-CNF formulas. In a previous paper Creignou and Daud\'e proved that the phase transition for the consistency…

离散数学 · 计算机科学 2007-05-23 Nadia Creignou , Herve Daude , Olivier Dubois

An important challenge in statistical analysis concerns the control of the finite sample bias of estimators. For example, the maximum likelihood estimator has a bias that can result in a significant inferential loss. This problem is…

统计理论 · 数学 2019-11-04 Stéphane Guerrier , Mucyo Karemera , Samuel Orso , Maria-Pia Victoria-Feser

To study the structure of solutions for random k-SAT and random CSPs, this paper introduces the concept of average similarity degree to characterize how solutions are similar to each other. It is proved that under certain conditions, as r…

人工智能 · 计算机科学 2007-05-23 Ke Xu , Wei Li

Recent studies have shown that one-dimensional driven systems can exhibit phase separation even if the dynamics is governed by local rules. The ABC model, which comprises three particle species that diffuse asymmetrically around a ring,…

统计力学 · 物理学 2016-08-31 M. Clincy , B. Derrida , M. R. Evans

In the maximum constraint satisfaction problem (MAX CSP), one is given a finite collection of (possibly weighted) constraints on overlapping sets of variables, and the goal is to assign values from a given finite domain to the variables so…

计算复杂性 · 计算机科学 2007-05-23 Vladimir Deineko , Peter Jonsson , Mikael Klasson , Andrei Krokhin

This paper analyzes the scaling window of a random CSP model (i.e. model RB) for which we can identify the threshold points exactly, denoted by $r_{cr}$ or $p_{cr}$. For this model, we establish the scaling window…

计算复杂性 · 计算机科学 2008-01-28 Chunyan Zhao , Ke Xu , Zhiming Zheng

We report an analytic and numerical study of a phase transition in a P problem (the assignment problem) that separates two phases whose representatives are the simple matching problem (an easy P problem) and the traveling salesman problem…

计算复杂性 · 计算机科学 2007-05-23 J. G. Esteve , F. Falceto

We study a simple and exactly solvable model for the generation of random satisfiability problems. These consist of $\gamma N$ random boolean constraints which are to be satisfied simultaneously by $N$ logical variables. In…

无序系统与神经网络 · 物理学 2009-10-31 F. Ricci-Tersenghi , M. Weigt , R. Zecchina

For random CNF formulae with m clauses, n variables and an unrestricted number of literals per clause the transition from high to low satisfiability can be determined exactly for large n. The critical density m/n turns out to be strongly…

计算复杂性 · 计算机科学 2012-04-10 Bernd R. Schuh

A fundamental question in Computer Science is understanding when a specific class of problems go from being computationally easy to hard. Because of its generality and applications, the problem of Boolean Satisfiability (aka SAT) is often…

人工智能 · 计算机科学 2013-04-02 Soumya C. Kambhampati , Thomas Liu

Specifying a proper input distribution is often a challenging task in simulation modeling. In practice, there may be multiple plausible distributions that can fit the input data reasonably well, especially when the data volume is not large.…

统计方法学 · 统计学 2019-03-15 Weiwei Fan , L. Jeff Hong , Xiaowei Zhang

A constant-rate multi-mode system is a hybrid system that can switch freely among a finite set of modes, and whose dynamics is specified by a finite number of real-valued variables with mode-dependent constant rates. Alur, Wojtczak, and…

计算机科学中的逻辑 · 计算机科学 2017-07-14 Shankara Narayanan Krishna , Aviral Kumar , Fabio Somenzi , Behrouz Touri , Ashutosh Trivedi

We consider a many-fermion model which exhibits a transition from a superconducting to a rotational phase with variation of a parameter in its Hamiltonian. The model has analytical solutions in its two limits due to the presence of…

核理论 · 物理学 2009-10-31 D. J. Rowe , C. Bahri , W. Wijesundera