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JOURNALS // Preprints of the Keldysh Institute of Applied Mathematics // Archive

Keldysh Institute preprints, 2021 093, 15 pp. (Mi ipmp3010)

Amplitude equation formalism for reaction—subdiffusion systems

D. A. Zenyuk, G. G. Malinetskiy


Abstract: The paper presents derivation of the amplitude equation for the Hopf bifurcation in the two-component system with nonlinear chemical kinetics and subdiffusion. Anomalous diffusion transport is described via Caputo fractional derivatives. The obtained amplitude equation is much more complex compared to the case of normal diffusion because solutions of fractional order linear differential equations have inconvenient behavior.

Keywords: fractional calculus, asymptotic methods, subdiffusion.

UDC: 517.968.7

DOI: 10.20948/prepr-2021-93



© Steklov Math. Inst. of RAS, 2024