Unveiling new quiescent dark and singular solitary solutions of the Fokas–Lenells equation Şebnem Gökdeniz Sıvakcı, Yakup Yıldırım and Aydın Seçer Eur. Phys. J. Plus, 140 3 (2025) 256 Published online: 27 March 2025 DOI: 10.1140/epjp/s13360-025-06198-z