RT Journal Article T1 Evolution algebras of arbitrary dimension and their decompositions A1 Cabrera-Casado, Yolanda A1 Siles-Molina, Mercedes A1 Velasco Collado, Mª Victoria K1 Álgebra AB We study evolution algebras of arbitrary dimension. We analyze in deep the notions of evolution subalgebras, ideals and non-degeneracy and describe the ideals generated by one element and characterize the simple evolution algebras. We also prove the existence and unicity of a direct sum decomposition into irreducible components for every non-degenerate evolution algebra. When the algebra is degenerate, the uniqueness cannot be assured.The graph associated to an evolution algebra (relative to a natural basis) will play a fundamental role to describe the structure of the algebra. Concretely, a non-degenerate evolution algebra is irreducible if and only if the graph is connected. Moreover, when the evolution algebra is finite-dimensional, we give a process (called the fragmentation process) to decompose the algebra into irreducible components. PB Elsevier YR 2016 FD 2016 LK https://hdl.handle.net/10630/33809 UL https://hdl.handle.net/10630/33809 LA eng NO Yolanda Cabrera Casado, Mercedes Siles Molina, M. Victoria Velasco, Evolution algebras of arbitrary dimension and their decompositions, Linear Algebra and its Applications, Volume 495, 2016, Pages 122-162, ISSN 0024-3795, https://doi.org/10.1016/j.laa.2016.01.007 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026