Results 101 to 110 of about 178,320 (250)
Вестник Самарского университета: История, педагогика, филологияThe article examines the problems of the Russian-Turkish wars waged by Russia in the XIX century, especially the use of such a unit as the Danube River Flotilla.
А. О. Verbovoy
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Symmetry reductions of the (3+1) $(3+1)$-dimensional modified Zakharov–Kuznetsov equation
Advances in Difference Equations, 2019 This paper is concerned with the symmetry reductions of the (3+1) $(3+ 1)$-dimensional modified Zakharov–Kuznetsov equation of ion-acoustic waves in a magnetized plasma.
Yamin Liu +4 more
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The Khokhlov–Zabolotskaya–Kuznetsov equation
Comptes Rendus. Mathématique, 2007 For the KZK equation (ut−uux−βuxx)x−γΔyu=0 in the class of x-periodic and of zero mean value functions we have analysed the following: the derivation from Navier–Stokes system and the validity of its approximation, the existence, uniqueness and stability of the solution. The solution is proved to be global in time for sufficient small initial data with
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Motivation of Military Discourse Terms (on English Language Material)
Научный диалог, 2017 Specifics of motivation of terminological items of military sublanguage formed in semantic way is covered. The material is the English articles devoted to the military topic.
K. A. Degtyarenko
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Some Reduction and Exact Solutions of a Higher-Dimensional Equation
Abstract and Applied Analysis, 2014 The conservation laws of the (3+1)-dimensional Zakharov-Kuznetsov equation were obtained using Noether’s theorem after an interesting substitution u=vx to the equation.
Guangming Wang, Zhong Han
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Applied Mathematics and Nonlinear Sciences, 2019 In the current paper, we carry out an investigation into the exact solutions of the (3+1)-dimensional space-time fractional modified KdV–Zakharov–Kuznetsov (fractional mKdV–ZK) equation.
K. Al-Ghafri, H. Rezazadeh
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Cauchy problem for the Kuznetsov equation
Discrete & Continuous Dynamical Systems - A, 2019 We consider the Cauchy problem for a model of non-linear acoustics, named the Kuznetsov equation, describing sound propagation in thermo-viscous elastic media. For the viscous case, it is a weakly quasi-linear strongly damped wave equation, for which we prove the global existence in time of regular solutions for sufficiently small initial data, the ...
Dekkers, Adrien, Rozanova-Pierrat, Anna
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Historia Naturalis BulgaricaA new species for science, Cambodiparmarion bekchievi Dedov et Vu, sp. nov., is described from South Vietnam. This is the second species in this genus, and the first one described from Vietnam.
Ivaylo Dedov +2 more
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SENIOR FORMS STUDENTS’ COGNITIVE ACTIVITY DEVELOPMENT IN ENGLISH TEXTUAL ACTIVITY
Вестник Тамбовского университета. Серия: Гуманитарные науки, 2016 It is devoted to considering a question of using popular-science texts as the main means of senior forms students’ cognitive activity development. In our work we base on some principles of I.
Nina Valentinovna Protasova
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Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018 The paper presents results of complex research of vibration behavior of the differential reduction gear unit of a turboprop engine on the basis of statistics of products with repaired reduction gears and those placed under repair.
A. A. Avramenko +4 more
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