Multi-chimera states in a higher order network of FitzHugh–Nagumo oscillatorsZhen Wang, Mingshu Chen, Xiaojian Xi, Huaigu Tian and Rui YangEur. Phys. J. Spec. Top., 233 4 (2024) 779-786DOI: https://doi.org/10.1140/epjs/s11734-024-01143-0