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Related papers: A new $(\gamma_n,\sigma_k)-$ KP hierarchy and gene…

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A well-known ansatz (`trace method') for soliton solutions turns the equations of the (noncommutative) KP hierarchy, and those of certain extensions, into families of algebraic sum identities. We develop an algebraic formalism, in…

Exactly Solvable and Integrable Systems · Physics 2009-11-11 Aristophanes Dimakis , Folkert Muller-Hoissen

Gaussian Process Regression (GPR) is a powerful tool for nonparametric regression, but its application in a fully Bayesian fashion in high-dimensional settings is hindered by two primary challenges: the difficulty of variable selection and…

Methodology · Statistics 2025-11-11 Peter Knaus

The paper proposes an algorithm which could identify a general class of pdes describing dynamical systems with similar symmetries. The way that will be followed starts from a given group of symmetries, the determination of the invariants…

Mathematical Physics · Physics 2015-06-03 Rodica Cimpoiasu , Radu Constantinescu

New extensions of the KP and modified KP hierarchies with self-consistent sources are proposed. The latter provide new generalizations of $(2+1)$-dimensional integrable equations, including the DS-III equation and the $N$-wave problem.…

Exactly Solvable and Integrable Systems · Physics 2015-04-13 Oleksandr Chvartatskyi , Yuriy Sydorenko

From a 'discrete' functional zero curvature equation, functional representations of (matrix) Burgers and potential KP (pKP) hierarchies (and others), as well as corresponding Backlund transformations, can be obtained in a surprisingly…

Exactly Solvable and Integrable Systems · Physics 2009-11-11 Aristophanes Dimakis , Folkert Muller-Hoissen

This paper is devoted to the systematic study of additional (non- isospectral) symmetries of constrained (reduced) supersymmetric integrable hierarchies of KP type- the so called SKP_(R;M_B,M_F) models. The latter are supersymmetric…

Exactly Solvable and Integrable Systems · Physics 2009-11-07 Emil Nissimov , Svetlana Pacheva

Common intervals of K permutations over the same set of n elements were firstly investigated by T. Uno and M.Yagiura (Algorithmica, 26:290:309, 2000), who proposed an efficient algorithm to find common intervals when K=2. Several particular…

Data Structures and Algorithms · Computer Science 2013-06-18 Irena Rusu

Knowledge graph (KG) plays an increasingly important role to improve the recommendation performance and interpretability. A recent technical trend is to design end-to-end models based on information propagation schemes. However, existing…

Information Retrieval · Computer Science 2022-04-12 Yuntao Du , Xinjun Zhu , Lu Chen , Baihua Zheng , Yunjun Gao

We present algorithms that extend the path-based hierarchical drawing framework and give experimental results. Our algorithms run in $O(km)$ time, where $k$ is the number of paths and $m$ is the number of edges of the graph, and provide…

Data Structures and Algorithms · Computer Science 2020-11-25 Panagiotis Lionakis , Giorgos Kritikakis , Ioannis G. Tollis

We consider three classical models of biological evolution: (i) the Moran process, an example of a reducible Markov Chain; (ii) the Kimura Equation, a particular case of a degenerated Fokker-Planck Diffusion; (iii) the Replicator Equation,…

Populations and Evolution · Quantitative Biology 2020-10-09 Fabio A. C. C. Chalub , Léonard Monsaingeon , Ana Margarida Ribeiro , Max O. Souza

To establish a relation between two approaches to the construction of Riemann k-wave solutions of hydrodynamic-type systems, namely the symmetry reduction method and the generalized method of characteristics.

Mathematical Physics · Physics 2021-08-11 A. Michel Grundland

By using pseudo-differential operators containing two derivations, we extend the Kadomtsev-Petviashvili (KP) hierarchy to a certain KP-mKP hierarchy. For the KP-mKP hierarchy, we obtain its B\"{a}cklund transformations, bilinear equations…

Exactly Solvable and Integrable Systems · Physics 2023-11-15 Lumin Geng , Jianxun Hu , Chao-Zhong Wu

The $p\times p$ matrix version of the $r$-KdV hierarchy has been recently treated as the reduced system arising in a Drinfeld-Sokolov type Hamiltonian symmetry reduction applied to a Poisson submanifold in the dual of the Lie algebra…

High Energy Physics - Theory · Physics 2009-10-28 Laszlo Feher , Ian Marshall

An attempt is given to formulate the extensions of the KP hierarchy by introducing fractional order pseudo-differential operators. In the case of the extension with the half-order pseudo-differential operators, a system analogous to the…

Exactly Solvable and Integrable Systems · Physics 2016-09-08 Masaru Kamata , Atsushi Nakamula

An explanation for the so-called constrained hierarhies is presented by linking them with the symmetries of the KP hierarchy. While the existence of ordinary symmetries (belonging to the hierarchy) allows one to reduce the KP hierarchy to…

High Energy Physics - Theory · Physics 2009-10-28 L. A. Dickey

We study a new class of time inhomogeneous P\'olya-type urn schemes and give optimal rates of convergence for the distribution of the properly scaled number of balls of a given color to nearly the full class of generalized gamma…

Probability · Mathematics 2016-06-28 Erol A. Peköz , Adrian Röllin , Nathan Ross

We consider generalized gradient systems in Banach spaces whose evolutions are generated by the interplay between an energy functional and a dissipation potential. We focus on the case in which the dual dissipation potential is given by a…

Analysis of PDEs · Mathematics 2023-08-01 Alexander Mielke , Riccarda Rossi , Artur Stephan

[French] We develop new applications of Sklyanin's $K$-matrix formalism to the study of periodic solutions of the sinh-Gordon equation.

High Energy Physics - Theory · Physics 2018-08-21 Martin Kilian , Graham Smith

We present new abstract results on the interrelation between the minimizing movement scheme for gradient flows along a sequence of Gamma-converging functionals and the gradient flow motion for the corresponding limit functional, in a…

Analysis of PDEs · Mathematics 2016-03-10 Florentine Fleißner

We define a new geometric flow, which we shall call the $K$-flow, on 3-dimensional Riemannian manifolds; and study the behavior of Thurston's model geometries under this flow both analytically and numerically. As an example, we show that an…

Differential Geometry · Mathematics 2023-11-02 Kezban Tasseten , Bayram Tekin
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