Parameter constraints on a black hole with Minkowski core through quasiperiodic oscillations Ming-Yu Guo, Meng-He Wu, Xiao-Mei Kuang and Hong Guo Eur. Phys. J. C, 85 1 (2025) 95 Published online: 28 January 2025 DOI: 10.1140/epjc/s10052-025-13755-4