caa a22 4500 463196163 CHVBK 20180406164923.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10773-007-9417-z doi (NATIONALLICENCE)springer-10.1007/s10773-007-9417-z Symmetries, Conservation Laws and Multipliers viaPartial Lagrangians and Noether's Theorem forClassically Non-Variational Problems [Elektronische Daten] [D. KhanMarwat, A. Kara, F. Mahomed] We show how one can construct conservation laws of equations that are not variational but are Euler-Lagrange in part using Noether-type symmetries associated with partial Lagrangians. These Noether-type symmetries are, usually, not symmetries of the system. The resultant construction of the conservation law resorts to aformula equivalent to Noether's theorem. Avariety of examples are given. Springer Science+Business Media, LLC, 2007 KhanMarwat D. Department of Mathematics, COMSATS Institute of Information Technology, H-8, Islamabad, Pakistan aut Kara A. School of Mathematics, Centre for Differential Equations, Continuum Mechanics and Applications, University of the Witwatersrand, 2050, Wits, South Africa aut Mahomed F. School of Computational & Applied Mathematics, Centre for Differential Equations, Continuum Mechanics and Applications, University of the Witwatersrand, 2050, Wits, South Africa aut International Journal of Theoretical Physics Springer US; http://www.springer-ny.com 46/12(2007-12-01), 3022-3029 0020-7748 46:12<3022 2007 46 10773 https://doi.org/10.1007/s10773-007-9417-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10773-007-9417-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- KhanMarwat D. Department of Mathematics, COMSATS Institute of Information Technology, H-8, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Kara A. School of Mathematics, Centre for Differential Equations, Continuum Mechanics and Applications, University of the Witwatersrand, 2050, Wits, South Africa aut NATIONALLICENCE 700 1- Mahomed F. School of Computational & Applied Mathematics, Centre for Differential Equations, Continuum Mechanics and Applications, University of the Witwatersrand, 2050, Wits, South Africa aut NATIONALLICENCE 773 0- International Journal of Theoretical Physics Springer US; http://www.springer-ny.com 46/12(2007-12-01), 3022-3029 0020-7748 46:12<3022 2007 46 10773 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer