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21 866 (0,122s) •

Result

On symmetries of the Gibbons-Tsarev equation

We study the Gibbons-Tsarev equation z(yy) + z(x)z(xy) - z(y)z(xx) + 1 = 0 and, using the known Lax pair, we construct infinite series of conservation laws and the algebra of nonlocal symmetries in the covering associated w...

Pure mathematics

  • 2019
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  • Jimp
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  • Link
Result

Integrability properties of some equations obtained by symmetry reductions

-systems similar to the one found for the Gibbons-Tsarev equation in [17]. Using-removable parameter) 3-dimensional equations. Here we study the behavior of the integrability features of the initial equations

BA - Obecná matematika

  • 2015
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  • Jx
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  • Link
Result

2D reductions of the equation u_{yy} = u_{tx} + u_{y}u_{xx} - u_{x}u_{xy} and their nonlocal symmetries

We consider the 3D equation u_{yy}= u_{tx} + u_y u_{xx} - u_x u_{xy} and its 2D symmetry reductions: (1) u_{yy} = (u_y + y) u_{xx} - u_{x} u_{xy} - 2 (which is equivalent to the Gibbons-Tsarev equation) and (2) u_{...

Pure mathematics

  • 2017
    • •
  • Jimp
    • •
  • Link
Result

A Natural Geometric Construction Underlying a Class of Lax Pairs

of objects arise, for example, when studying integrability properties of equations like the Gibbons-Tsarev one [1].

BA - Obecná matematika

  • 2016
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  • Jx
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  • Link
Result

Exploring Wave Interactions and Conserved Quantities of KdV-Caudrey-Dodd-Gibbon Equation Using Lie Theory

This study introduces the KdV-Caudrey-Dodd-Gibbon (KdV-CDGE) equation to describe long water waves, acoustic waves, plasma waves, and nonlinear optics. Employing a generalized new auxiliary equation scheme, we derive exact ...

Mathematics

  • 2024
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  • Jimp
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  • Link
Result

Hominoids kept in the Czech Republic

Hominoids, which include the families Great Apes and Gibbons, belong Republic, both great apes (53 individuals in total) and gibbons (96 individuals in total) are kept, but only gibbons are kept both in zoos and as pets. Th...

Veterinary science

  • 2021
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  • Jost
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  • Link
Result

On asymptotically flat solutions of Einstein's equations periodic in time: I. Vacuum and electrovacuum solutions

By an argument similar to that of Gibbons and Stewart (1984) but in a different coordinate system and less restrictive gauge, we show that any weakly asymptotically simple, analytic vacuum or electrovacuum solutions of the Einstein equat...

BE - Teoretická fyzika

  • 2010
    • •
  • Jx
Result

Sex determination in gibbons of genus Nomascus using non-invasive method

Gibbons of the genus Nomascus have a strong sexual dimorphism and dichromatism. As they mature, both sexes develop sex-specific pelage colour. In combination with physical of young individuals compared to other genus of gibbons. Thi...

GJ - Choroby a škůdci zvířat, veterinární medicina

  • 2016
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  • Jx
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  • Link
Result

Social behavior of gibbons (Hylobatidae)

Gibbons (Hylobatidae) are arboreal primates of a South-East Asian tropical and browse. To a small extent gibbons regularly eat animal diet, for example insect and bird eggs. The species most kept in captivity is White-handed gib...

EG - Zoologie

  • 2015
    • •
  • D
Result

Production of female-specific great call in an immature male gibbon, the Nomascus genus

Production of species- and sex-specifuc vocalisation is a trait characteristic of all gibbons. However, the mechanismus of gibbon vocalisation ontogeny vocal behaviour of a juvenile male northern white-cheeked gibbon (Nomas...

EG - Zoologie

  • 2016
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  • Jx
    • •
  • Link
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