نتایج جستجو برای: sawada
تعداد نتایج: 297 فیلتر نتایج به سال:
In the present paper, the Sawada–Kotera equation is considered by Lie symmetry analysis. All of the geometric vector fields to the Sawada–Kotera equation are obtained, and then the symmetry reductions and exact solutions of the Sawada–Kotera equation are investigated. Our results show that symmetry analysis is a very efficient and powerful technique in finding the solution of the proposed equat...
We show that a recently introduced Lax pair of the Sawada-Kotera equation is nota new one but is trivially related to the known old Lax pair. Using the so-called trivialcompositions of the old Lax pairs with a differentially constrained arbitrary operators,we give some examples of trivial Lax pairs of KdV and Sawada-Kotera equations.
In this paper, we study explicit correspondences between the integrable Novikov and Sawada–Kotera hierarchies, and between the Degasperis–Procesi and Kaup–Kupershmidt hierarchies. We show how a pair of Liouville transformations between the isospectral problems of the Novikov and Sawada–Kotera equations, and the isospectral problems of the Degasperis–Procesi and Kaup–Kupershmidt equations relate...
Purposes ; FK506 (strong immunosuppressive agent) was investigated experimentally whether to protect the hepatic IRI. Methods ; Warm ischemic experiment using pigs and rats were performed and examined whether FK506 is effective. Results ; The results obtained are as follows. 1. Warm ischemia allowed time of the pigs without FK506 was 150 minutes, but as for that of FK506 group, the extension of...
Next article No AccessFighting the Learning Crisis in Developing Countries: A Randomized Experiment of Self-Learning at Right LevelYasuyuki Sawada, Minhaj Mahmud, Mai Seki, and Hikaru KawarazakiYasuyuki Sawada Search for more articles by this author , Mahmud Seki Kawarazaki PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail...
A new supersymmetric equation is proposed for the Sawada-Kotera equation. The integrability of this equation is shown by the existence of Lax representation and infinite conserved quantities and a recursion operator. PACS: 02.30.Ik; 05.45.Yv
Hiro Takahashi ([email protected]) Nahoko Kaniwa ([email protected]) Yoshiro Saito ([email protected]) Kimie Sai ([email protected]) Tetsuya Hamaguchi ([email protected]) Kuniaki Shirao ([email protected]) Yasuhiro Shimada ([email protected]) Yasuhiro Matsumura ([email protected]) Atsushi Ohtsu ([email protected]) Takayuki Yoshino ([email protected]) Toshihik...
we show that a recently introduced lax pair of the sawada-kotera equation is nota new one but is trivially related to the known old lax pair. using the so-called trivialcompositions of the old lax pairs with a differentially constrained arbitrary operators,we give some examples of trivial lax pairs of kdv and sawada-kotera equations.
We obtain new gauge-invariant forms of two-dimensional integrable systems of nonlinear equations: the Sawada–Kotera and Kaup–Kuperschmidt system, the generalized system of dispersive long waves, and the Nizhnik–Veselov–Novikov system. We show how these forms imply both new and well-known two-dimensional integrable nonlinear equations: the Sawada–Kotera equation, Kaup–Kuperschmidt equation, disp...
This paper presents a new function expansion method for finding traveling wave solutions of a nonlinear equations and calls it the ( G′ G ) -expansion method, given by Wang et al recently. As an application of this new method, we study the well-known Sawada-Kotera-Kadomtsev-Petviashivili equation and Bogoyavlensky-Konoplechenko equation. With two new expansions, general types of soliton solutio...
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