Dingyong Bai Mingming Xie Jianhong Wu Bo Zheng Jianshe Yu Yun Kang Impact of Intraspecific Competition of Predator on Coexistence of a Predator-Prey Model with Additive Predation on Prey. 1191-1230 2025 24 SIAM J. Appl. Dyn. Syst. 2 https://doi.org/10.1137/24m1685997 db/journals/siamads/siamads24.html#BaiXWZYK25 streams/journals/siamads