Eur. Phys. J. B (2025) 98: 171
https://doi.org/10.1140/epjb/s10051-025-01011-3

Editorial

Editorial - EPJ B topical collections: recent advances in complex systems

¹ Department of Mathematics, King’s College London, The Strand, WC2R 2LS, London, UK
² Complexity Science Hub, Josefstädter Straße 39, 1080, Vienna, Austria
³ Centro Ricerche Enrico Fermi, Via Panisperna 89A, 00184, Rome, Italy
⁴ Computational Modeling Program, SENAI CIMATEC University, 41.650-010, Salvador, Bahia, Brazil
⁵ Department of Exact and Earth Sciences, Campus I, University of Bahia State, 41.150-000, Salvador, Bahia, Brazil
⁶ Department of Education, Campus I, University of Bahia State, 41.150-000, Salvador, Bahia, Brazil
⁷ Instituto de Física, University of Brasília, 70.919-970, Brasília, DF, Brazil
⁸ Department of Physics, University of Aveiro, 3810-193, Aveiro, Portugal

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Abstract

This editorial introduces the Topical Collection of The European Physical Journal B dedicated to Recent Advances in Complex Systems. Complex systems are characterized by multiple interacting components whose collective behavior exhibits nontrivial properties such as nonlinearity, emergence, and multiscale organization. This issue, inspired by the 2023 Conference on Complex Systems held in Salvador, Brazil, features contributions spanning diverse domains including physics, biology, economics, linguistics, and artificial intelligence. The selected papers are organized into five thematic areas: Complex Networks and Systemic Modeling; Financial, Natural and Environmental Dynamics; Advances in Computational Methods and AI; Biological and Health-Related Systems; and Fundamental Physics and Theoretical Systems. This collection reflects the interdisciplinary nature of the field and highlights its growing importance in addressing real-world challenges on systems-based thinking.