2026-04-14T03:40:00Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/77092024-06-14T09:36:40Zcom_2072_452955com_2072_2054col_2072_453063

Time-delayed reaction-diffusion fronts Isern Sardó, Neus Fort, Joaquim Equacions de reacció-difusió Reaction-diffusion equations Neolític -- Models matemàtics Neolithic period -- Mathematical models A time-delayed second-order approximation for the front speed in reaction-dispersion systems was obtained by Fort and Méndez [Phys. Rev. Lett. 82, 867 (1999)]. Here we show that taking proper care of the effect of the time delay on the reactive process yields a different evolution equation and, therefore, an alternate equation for the front speed. We apply the new equation to the Neolithic transition. For this application the new equation yields speeds about 10% slower than the previous one 2009 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/10256/7709 http://hdl.handle.net/10256/7709 eng info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.80.057103 info:eu-repo/semantics/altIdentifier/issn/1539-3755 info:eu-repo/semantics/altIdentifier/eissn/1550-2376 Tots els drets reservats info:eu-repo/semantics/openAccess application/pdf American Physical Society © Physical Review E, 2009, vol. 80, núm. 5, p. 057103 Articles publicats (D-F)