RT Journal Article T1 Symmetries in dynamic models of biological systems: mathematical foundations and implications A1 Fernandez Villaverde, Alejandro K1 2404 Biomatemáticas K1 12 Matemáticas AB Symmetries are ubiquitous in nature. Almost all organisms have some kind of “symmetry”, meaning that their shape does not change under some geometric transformation. This geometrical concept of symmetry is intuitive and easy to recognize. On the other hand, the behavior of many biological systems over time can be described with ordinary differential equations. These dynamic models may also possess “symmetries”, meaning that the time courses of some variables remain invariant under certain transformations. Unlike the previously mentioned symmetries, the ones present in dynamic models are not geometric, but infinitesimal transformations. These mathematical symmetries can be related to certain features of the system’s dynamic behavior, such as robustness or adaptation capabilities. However, they can also arise from questionable modeling choices, which may lead to non-identifiability and non-observability. This paper provides an overview of the types of symmetries that appear in dynamic models, the mathematical tools available for their analyses, the ways in which they are related to system properties, and the implications for biological modeling. PB Symmetry SN 20738994 YR 2022 FD 2022-02-25 LK http://hdl.handle.net/11093/3223 UL http://hdl.handle.net/11093/3223 LA eng NO Symmetry, 14(3): 467 (2022) NO MCIN/AEI/10.13039/501100011033 | Ref. PID2020-113992RA-I00 DS Investigo RD 20-sep-2024