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Related papers: The free boundary Schur process and applications I

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We consider the monomer-dimer partition function on arbitrary finite planar graphs and arbitrary monomer and dimer weights, with the restriction that the only non-zero monomer weights are those on the boundary. We prove a Pfaffian formula…

Mathematical Physics · Physics 2016-08-24 Alessandro Giuliani , Ian Jauslin , Elliott H. Lieb

We study fluctuations of the current at the boundary for the half space asymmetric simple exclusion process (ASEP) and the height function of the half space six vertex model at the boundary at large times. We establish a phase transition…

Probability · Mathematics 2024-03-28 Jimmy He

We obtain a new formula to relate the value of a Schur polynomial with variables $(x_1,\ldots,x_N)$ with values of Schur polynomials at $(1,\ldots,1)$. This allows to study the limit shape of perfect matchings on a square hexagon lattice…

Probability · Mathematics 2021-09-30 Zhongyang Li

We review some fractional free boundary problems that were recently considered for modeling anomalous phase-transitions. All problems are of Stefan type and involve fractional derivatives in time according to Caputo's definition. We survey…

Analysis of PDEs · Mathematics 2020-02-18 Andrea N. Ceretani

We give a self-contained exposition of the combinatorial solution of quantum mechanical systems of coupled spins on a one-dimensional lattice. Using Trotter formula, we write the partition function as a generating function of a spanning…

Statistical Mechanics · Physics 2007-05-23 Domingos H. U. Marchetti , Claudio F. S. Rodrigues

Free boundary problems deal with systems of partial differential equations, where the domain boundaries are apriori unknown. Due to this special characteristic, it is challenging to solve free boundary problems either theoretically or…

Numerical Analysis · Mathematics 2020-12-07 Xinyue Evelyn Zhao , Wenrui Hao , Bei Hu

We present several new sufficient conditions for uniform boundedness of the reduced correlations and free energy of an abstract polymer system in a complex multidisc around zero fugacity. They resolve a discrepancy between two incomparable…

Mathematical Physics · Physics 2015-04-13 Christoph Temmel

Langlands recently constructed a map that factorizes the partition function of a free boson on a cylinder with boundary condition given by two arbitrary functions in the form of a scalar product of boundary states. We rewrite these boundary…

High Energy Physics - Theory · Physics 2008-11-26 Marc-Andre Lewis , Yvan Saint-Aubin

We study a variant of the Alt, Caffarelli, and Friedman free boundary problem with many phases and a slightly different volume term, which we originally designed to guess the localization of eigenfunctions of a Schr\"odinger operator in a…

Classical Analysis and ODEs · Mathematics 2014-07-22 Guy David , Marcel Filoche , David Jerison , Svitlana Mayboroda

The goal of this work is to explain an unexpected feature of the expanding level sets of the solutions of a system where a half plane, in which reaction-diusion phenomena take place, exchanges mass with a line having a large diusion of its…

Analysis of PDEs · Mathematics 2019-03-15 Luis Caffarelli , Jean-Michel Roquejoffre

We generalize the idea of boundary states to the open string channel. They describe emission and absorption of open strings in the presence of intersecting D-branes. We construct the explicit oscillator representation for the free boson and…

High Energy Physics - Theory · Physics 2008-11-26 Yosuke Imamura , Hiroshi Isono , Yutaka Matsuo

We first give an overview of the shell-correction method which was developed by V. M. Strutinsky as a practicable and efficient approximation to the general selfconsistent theory of finite fermion systems suggested by A. B. Migdal and…

Nuclear Theory · Physics 2015-03-17 A. G. Magner , I. S. Yatsyshyn , K. Arita , M. Brack

Partition function zeros are powerful tools in understanding critical behavior. In this paper we present new results of the Fisher zeros of two-dimensional Ising models, in the framework of free-fermion eight-vertex model. First we succeed…

Statistical Mechanics · Physics 2025-07-30 De-Zhang Li , Xin Wang

A hypothetical exclusion principle for quantum particles is introduced that generalizes the exclusion and inclusion principles for fermions and bosons, respectively: the correlated exclusion principle. The sum-free condition for Schur…

Quantum Physics · Physics 2020-10-02 Miguel A. Martin-Delgado

Rail-yard graphs are a general class of graphs introduced in \cite{bbccr} on which the random dimer coverings form Schur processes. We study asymptotic limits of random dimer coverings on rail yard graphs with free boundary conditions on…

Probability · Mathematics 2023-04-04 Zhongyang Li

We introduce and solve a model of fermions hopping between neighbouring sites on a line with random Brownian amplitudes and open boundary conditions driving the system out of equilibrium. The average dynamics reduces to that of the…

Statistical Mechanics · Physics 2019-10-22 Denis Bernard , Tony Jin

Subtraction-free computational complexity is the version of arithmetic circuit complexity that allows only three operations: addition, multiplication, and division. We use cluster transformations to design efficient subtraction-free…

Combinatorics · Mathematics 2014-09-30 Sergey Fomin , Dima Grigoriev , Gleb Koshevoy

In this paper we analyze the boundary treatment of the lattice Boltzmann method (LBM) for simulating 3D flows with free surfaces. The widely used free surface boundary condition of K\"orner et al. (2005) is shown to be first order accurate.…

Numerical Analysis · Mathematics 2015-09-29 Simon Bogner , Regina Ammer , Ulrich Rüde

We investigate general semilinear (obstacle-like) problems of the form $\Delta u = f(u)$, where $f(u)$ has a singularity/jump at $\{u=0\}$ giving rise to a free boundary. Unlike many works on such equations where $f$ is approximately…

Analysis of PDEs · Mathematics 2025-05-09 Mark Allen , Dennis Kriventsov , Henrik Shahgholian

An attempt is described to extend the notion of Schur functions from Young diagrams to plane partitions. The suggestion is to use the recursion in the partition size, which is easily generalized and deformed. This opens a possibility to…

High Energy Physics - Theory · Physics 2018-12-05 A. Morozov