Cubic-Quartic Optical Soliton Perturbation with Differential Group Delay for the Lakshmanan-Porsezian-Daniel Model by Lie Symmetry. - Sachin Kumar; Anjan Biswas; Yakup Yildirim; Luminita Moraru; Simona Moldovanu; Hashim M. Alshehri; Dalal Adnan Maturi; Dalal H. Al-Bogami (Symmetry, 2022)