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We describe some results on moduli space of logarithmic connections equipped with framings on a $n$-pointed compact Riemann surface.

Algebraic Geometry · Mathematics 2021-03-24 Indranil Biswas , Michi-aki Inaba , Arata Komyo , Masa-Hiko Saito

We exhibit isomorphisms of Grassmann spaces and their relationship with collineations and embeddings of the underlying projective spaces.

Algebraic Geometry · Mathematics 2024-03-19 Hans Havlicek

Several types of static solutions to Einstein's equations coupled with antisymmetric tensor fields are found in $(2+N+1)$-dimensional spacetime. The solutions describe a product of a three-dimensional radially symmetric spacetime and an…

General Relativity and Quantum Cosmology · Physics 2018-02-06 Takuya Maki , Kiyoshi Shiraishi

The strict relation between some class of multiboson hamiltonian systems and the corresponding class of orthogonal polynomials is established. The correspondence is used effectively to integrate the systems. As an explicit example we…

Mathematical Physics · Physics 2014-11-03 A. Odzijewicz , M. Horowski , A. Tereszkiewicz

Theory of Riemann Extensions of the spaces with constant affine connection for the studying of the properties of nonlinear the first order systems of differential equations is proposed. Quadratic planar system of equations and the Lorenz…

Exactly Solvable and Integrable Systems · Physics 2008-07-02 Valery Dryuma

We consider the problem of extending the integrals of motion of soliton equations to the space of all finite-gap solutions. We consider the critical points of these integrals on the moduli space of Riemann surfaces with marked points and…

Algebraic Geometry · Mathematics 2010-05-21 Igor Krichever , Dmitry Zakharov

This work provides a concept for three-dimensional magnetic solitons based on mapping the homotopy path between various two-dimensional solutions onto the third spatial axis. The representative examples of statically stable configurations…

Mesoscale and Nanoscale Physics · Physics 2022-08-22 Vladyslav M. Kuchkin , Nikolai S. Kiselev

A countable class of integrable dynamical systems, with four dimensional phase space and conserved quantities in involution (H\_n,I\_n) are exhibited. For $n=1$ we recover Neumann sytem on T*S^2. All these systems are also integrable at the…

Mathematical Physics · Physics 2009-11-11 Galliano Valent , Hamed Ben Yahia

We discuss extension of soliton theories and integrable systems into noncommutative spaces. In the framework of noncommutative integrable hierarchy, we give infinite conserved quantities and exact soliton solutions for many noncommutative…

Mathematical Physics · Physics 2015-05-20 Masashi Hamanaka

The aim of the paper is to present the integrable systems on partial isometries which are related to the restricted Grassmannian in finite dimensional context. Some explicit solutions are obtained.

Exactly Solvable and Integrable Systems · Physics 2025-04-07 Tomasz Goliński , Alice Barbora Tumpach

We review recent developments of soliton theories and integrable systems on noncommutative spaces. The former part is a brief review of noncommutative gauge theories focusing on ADHM construction of noncommutative instantons. The latter…

High Energy Physics - Theory · Physics 2007-05-23 Masashi Hamanaka

In this paper we establish three basic equations for a general soliton structure on the Riemannian manifold $(M, <, >)$. We then draw some geometric conclusions with the aid of the maximum principle.

Differential Geometry · Mathematics 2010-09-09 Paolo Mastrolia , Marco Rigoli

We give a self-contained introduction to the relations between Integrable Systems and the Geometry of Riemann Surfaces. We start from a historical introduction to the topic of integrable systems. Afterwards, we study the polynomial…

Analysis of PDEs · Mathematics 2017-12-08 Jesús A. Espínola-Rocha , Francisco X. Portillo-Bobadilla

In this paper, we discus the fascinating energy sharing collisions of multicomponent solitons in certain incoherently coupled and coherently coupled nonlinear Schr\"odinger type equations arising in the context of nonlinear optics.

Pattern Formation and Solitons · Physics 2015-12-04 T Kanna , K Sakkaravarthi , M Vijayajayanthi

In this note, we completely classify left-invariant Riemann solitons on three-dimensional Lorentzian Lie groups.

Differential Geometry · Mathematics 2021-01-12 Yong Wang

We present the explicit dark-bright three soliton solution and the associated spectral problem for the variable coefficient integrable coupled NLS equation. Using asymptotic analysis as well as graphical analysis we study the interactions…

Exactly Solvable and Integrable Systems · Physics 2017-12-01 Sudipta Nandy , Abhijit Barthakur

We derive the soliton matrices corresponding to an arbitrary number of higher-order normal zeros for the matrix Riemann-Hilbert problem of arbitrary matrix dimension, thus giving the complete solution to the problem of higher-order…

Exactly Solvable and Integrable Systems · Physics 2009-11-10 V. S. Shchesnovich , J. Yang

We consider three- and four-dimensional pseudo-Riemannian generalized symmetric spaces, whose invariant metrics were explicitly described in [15]. While four-dimensional pseudo-Riemannian generalized symmetric spaces of types A, C and D are…

Differential Geometry · Mathematics 2017-01-04 Giovanni Calvaruso , Eugenia Rosado

These lectures deal mainly with solitons in three-dimensional Moyal-deformed sigma models. The topics are: static and moving (multi-)solitons of the (integrable) Ward sigma model, with space-space and time-space noncommutativity, their…

High Energy Physics - Theory · Physics 2017-08-23 Olaf Lechtenfeld

On a basis of theory of Riemann extension of the space of constant affine connection associated with the R\"ossler system of equations relations between its parameters are investigated.

Exactly Solvable and Integrable Systems · Physics 2008-07-08 Valery Dryuma