AIP Conference Proceedings 2153, 020009 (2019); https://doi.org/10.1063/1.5125074 2153, 020009 © 2019 Author(s). Conservation laws of the one-dimensional isentropic gas dynamics equations in Lagrangian coordinates Cite as: AIP Conference Proceedings 2153, 020009 (2019); https://doi.org/10.1063/1.5125074 Published Online: 12 September 2019 Evgeniy I. Kaptsov, and Sergey V. Meleshko