The matter Lagrangian of a non-perfect fluid
| Autor: | Mendoza, Sergio, Silva, Sarahi |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1142/S0219887824501032 |
| Popis: | We show that the matter Lagrangian of a non-perfect fluid takes the negative or positive value of the total energy density of the fluid, which is composed of the the rest plus internal energy densities. The ambiguity of the sign depends on the definition of the matter action and the chosen signature. Comment: 4 pages, accepted for publication in International Journal of Geometric Methods in Modern Physics (IJGMMP) |
| Databáze: | arXiv |
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