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Found 187 Documents (Results 1–100)

Instability of solitons – revisited. I: The critical generalized KdV equation. (English) Zbl 1423.35336

Zheng, Shijun (ed.) et al., Nonlinear dispersive waves and fluids. AMS special sessions on spectral calculus and quasilinear partial differential equations, and PDE analysis on fluid flows, Atlanta, GA, USA, January 5–7, 2017. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 725, 65-88 (2019).
MSC:  35Q53 37K40 37K45 37K05
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A simple property of the Weyl tensor for a shear, vorticity and acceleration-free velocity field. (English) Zbl 1398.83062

Gen. Relativ. Gravitation 50, No. 7, Paper No. 81, 7 p. (2018); correction ibid. 50, No. 10, Paper No. 133, 2 p. (2018).
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Nonholonomic jet deformations, exact solutions for modified Ricci soliton and Einstein equations. (English) Zbl 1372.58003

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Generalized equivalence transformations and group classification of systems of differential equations. (English. Russian original) Zbl 1298.76134

J. Appl. Mech. Tech. Phys. 53, No. 2, 147-155 (2012); translation from Prikl. Mekh. Tekh. Fiz. 53, No. 2, 3-13 (2012).
MSC:  76M60 74H45 35A30
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Generalized Lie symmetries for difference equations. (English) Zbl 1229.39002

Levi, Decio (ed.) et al., Symmetries and integrability of difference equations. Based upon lectures delivered during the summer school, Montreal, Canada, June 8–21, 2008. Cambridge: Cambridge University Press (ISBN 978-0-521-13658-7/pbk). London Mathematical Society Lecture Note Series 381, 160-190 (2011).
MSC:  39A05 39A14 34K05
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Complete symmetry groups and Lie remarkability. (English) Zbl 1162.35307

Gaeta, Giuseppe (ed.) et al., Symmetry and perturbation theory. Proceedings of the 6th international conference, SPT 2007, Otranto, Italy, June 2–9, 2007. Hackensack, NJ: World Scientific (ISBN 978-981-277-616-7/hbk). 237-238 (2008).
MSC:  35A30 58J70
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