Results 1 to 10 of about 436 (97)

Bilinear form of the regularized long wave equation and its multi-soliton solutions

open access: yesPartial Differential Equations in Applied Mathematics, 2022
We consider utmost significant model, namely, the regularized long-wave equation involving dispersion and weedy nonlinearity effects that arises in the nonlinear dynamics of phonon packets in crystals, shallow water, plasma and ion acoustic waves.
Mohammad Mobarak Hossain   +2 more
doaj   +1 more source

Soliton solutions by means of Hirota bilinear forms

open access: yesPartial Differential Equations in Applied Mathematics, 2022
The paper aims to provide a brief overview of soliton solutions obtained through the Hirota direct method. A bilinear formulation of soliton solutions in both (1+1)-dimensions and (2+1)-dimensions is discussed, together with applications to various ...
Wen-Xiu Ma
doaj   +1 more source

ON THE POTENTIALITY OF A CLASS OF OPERATORS RELATIVE TO LOCAL BILINEAR FORMS

open access: yesUral Mathematical Journal, 2021
The inverse problem of the calculus of variations (IPCV) is solved for a second-order ordinary differential equation with the use of a local bilinear form.
Svetlana A. Budochkina   +1 more
doaj   +1 more source

The soliton solutions for semidiscrete complex mKdV equation [PDF]

open access: yesITM Web of Conferences, 2020
The semidiscrete complex modified Korteweg–de Vries equation (semidiscrete cmKdV), which is the second member of the semidiscrete nonlinear Schrődinger hierarchy (Ablowitz–Ladik hierarchy), is solved using the Hirota bilinear formalism.
Babalic Corina N.
doaj   +1 more source

Bilinear form and exact solutions for a new extended (2+1)-dimensional Boussinesq equation

open access: yesResults in Physics, 2021
In this article, a new extended (2+1)-dimensional Boussinesq equation which can be used to describe the propagation of shallow water waves, was investigated.
Ping Cui
doaj   +1 more source

A Multi-Timescale Bilinear Model for Optimization and Control of HVAC Systems with Consistency

open access: yesEnergies, 2021
Reducing the energy consumption of the heating, ventilation, and air conditioning (HVAC) systems while ensuring users’ comfort is of both academic and practical significance.
Zelin Nie, Feng Gao, Chao-Bo Yan
doaj   +1 more source

Counting smaller trees in the Tamari order [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We introduce new combinatorial objects, the interval-posets, that encode intervals of the Tamari lattice. We then find a combinatorial interpretation of the bilinear form that appears in the functional equation of Tamari intervals described by Chapoton ...
Grégory Chatel, Viviane Pons
doaj   +1 more source

THE NON-DEGENERACY OF THE SKEW-SYMMETRIC BILINEAR FORM OF THE FINITE DIMENSIONAL REAL FROBENIUS LIE ALGEBRA

open access: yesBarekeng, 2022
A Frobenius Lie algebra is recognized as the Lie algebra whose stabilizer at a Frobenius functional is trivial. This condition is equivalent to the existence of a skew-symmetric bilinear form which is non-degenerate.
Edi Kurniadi
doaj   +1 more source

General bilinear forms [PDF]

open access: yesIsrael Journal of Mathematics, 2014
26 ...
openaire   +2 more sources

Positively curved bilinear forms [PDF]

open access: yesProceedings of the American Mathematical Society, 1986
A characterisation of the positivity of sectional curvature is given in terms of the angular spread of the second fundamental form.
Sarkaria, K. S., Zoltek, S. M.
openaire   +1 more source

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