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The mKP equation with self-consistent sources (mKPESCS) is treated in the framework of the constrained mKP hierarchy. We introduce a new constrained mKP hierarchy which may be viewed as the stationary hierarchy of the mKP hierarchy with…

Exactly Solvable and Integrable Systems · Physics 2009-11-10 Ting Xiao , Yunbo Zeng

This paper proposes and analyzes two fully discrete mixed interior penalty discontinuous Galerkin (DG) methods for the fourth order nonlinear Cahn-Hilliard equation. Both methods use the backward Euler method for time discretization and…

Numerical Analysis · Mathematics 2015-02-24 Xiaobing Feng , Yukun Li , Yulong Xing

Partly inspired by Sato's theory of the Kadomtsev-Petviashvili (KP) hierarchy, we start with a quite general hierarchy of linear ordinary differential equations in a space of matrices and derive from it a matrix Riccati hierarchy. The…

Mathematical Physics · Physics 2009-11-13 Aristophanes Dimakis , Folkert Muller-Hoissen

Resorting to the Lax matrix and elliptic variables, the discrete Chen-Lee-Liu hierarchy is decomposed into solvable ordinary differential equations. Based on the theory of algebraic curve, the continuous flow and discrete flow related to…

Algebraic Geometry · Mathematics 2013-04-17 Xianguo Geng , Xin Zeng

We consider the approximation of initial/boundary value problems involving, possibly high-dimensional, dissipative evolution partial differential equations (PDEs) using a deep neural network framework. More specifically, we first propose…

Numerical Analysis · Mathematics 2022-06-02 Emmanuil H. Georgoulis , Michail Loulakis , Asterios Tsiourvas

Using the matrix-resolvent method and a formula of the second-named author on the $n$-point function for a KP tau-function, we show that the tau-function of an arbitrary solution to the Toda lattice hierarchy is a KP tau-function. We then…

Exactly Solvable and Integrable Systems · Physics 2025-08-12 Di Yang , Jian Zhou

In this paper, we construct the additional flows of the noncommutative Kadomtsev-Petviashvili(KP) hierarchy and the additional symmetry flows constitute an infinite dimensional Lie algebra $W_{1+\infty}$. In addition, the generating…

Exactly Solvable and Integrable Systems · Physics 2019-07-17 Chuanzhong Li

This paper introduces the distributed Halpern Peaceman--Rachford (dHPR) method, an efficient algorithm for solving distributed convex composite optimization problems with non-smooth objectives, which achieves a non-ergodic $O(1/k)$…

Optimization and Control · Mathematics 2025-11-14 Zhangcheng Feng , Defeng Sun , Yancheng Yuan , Guojun Zhang

Invariant submanifolds of the so-called Darboux-KP chain are investigated. It is shown that restriction of dynamics on some class of invariant submanifolds yields the extension of the discrete KP hierarchy, while the intersections leads to…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 A. K. Svinin

In this paper, we prove the existence of tau functions of the discrete modified KP hierarchy and define the squared eigenfunction symmetry. Meanwhile, the Fay identity with its difference form, the squared eigenfunction potentials and the…

Exactly Solvable and Integrable Systems · Physics 2023-03-22 Kelei Tian , Guangmiao Lai , Ge Yi , Ying Xu

We introduce the discrete hierarchy which naturally generalizes well known discrete KP hierarchy.

Exactly Solvable and Integrable Systems · Physics 2009-11-07 A. K. Svinin

Extracting the latent underlying structures of complex nonlinear local and nonlocal flows is essential for their analysis and modeling. In this work, we attempt to provide a consistent framework through Koopman theory and its related…

Dynamical Systems · Mathematics 2021-12-23 Ido Cohen , Guy Gilboa

New types of stationary solutions of a one-dimensional driven sixth-order Cahn-Hilliard type equation that arises as a model for epitaxially growing nano-structures such as quantum dots, are derived by an extension of the method of matched…

Mathematical Physics · Physics 2008-11-14 M. D. Korzec , P. L. Evans , A. Münch , B. Wagner

For the first time we show that the quasiclassical limit of the symmetry constraint of the KP hierarchy leads to the generalized Zakharov reduction of the dispersionless KP (dKP) hierarchy which has been proved to be result of symmetry…

Exactly Solvable and Integrable Systems · Physics 2015-06-26 Ting Xiao , Yunbo Zeng

We show that the supersymmetric nonlinear Schr\"odinger equation can be written as a constrained super KP flow in a nonstandard representation of the Lax equation. We construct the conserved charges and show that this system reduces to the…

High Energy Physics - Theory · Physics 2015-06-26 J. C. Brunelli , A. Das

In this paper, we develop a theory of new classes of discrete convex functions, called L-extendable functions and alternating L-convex functions, defined on the product of trees. We establish basic properties for optimization: a…

Optimization and Control · Mathematics 2016-01-19 Hiroshi Hirai

We propose a systematic method to generalize the integrable Rosochatius deformations for finite dimensional integrable Hamiltonian systems to integrable Rosochatius deformations for infinite dimensional integrable equations. Infinite number…

Exactly Solvable and Integrable Systems · Physics 2009-11-13 Yuqin Yao , Yunbo Zeng

In this paper, we construct the Virasoro type additional symmetries of a kind of constrained multi-component KP hierarchy and give the Virasoro flow equation on eigenfunctions and adjoint eigenfunctions. It can also be seen that the…

Exactly Solvable and Integrable Systems · Physics 2016-08-09 Chuanzhong Li , Jingsong He

We propose a consistently algebraic formulation of the extended KP (supersymmetric) integrable -hierarchy systems. We exploit the results already established in [14] and which consist in a framework suspected to unify in a fascinating way…

High Energy Physics - Theory · Physics 2008-01-30 B. Maroufi , M. Nazah , M. B. Sedra

We develop a framework for computing two foundational analyses for concurrent higher-order programs: (control-)flow analysis (CFA) and may-happen-in-parallel analysis (MHP). We pay special attention to the unique challenges posed by the…

Programming Languages · Computer Science 2011-06-15 Matthew Might , David Van Horn