Monoatomic chain: modulational instability and exact traveling wave solutionsEric Tala-Tebue, Guy Roger Deffo, Serge Bruno Yamgoue, Aurélien Kenfack-Jiotsa and Francois Beceau PelapEur. Phys. J. Plus, 135 9 (2020) 715DOI: https://doi.org/10.1140/epjp/s13360-020-00624-0