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- W2134268091 abstract "We study a class of nonlinear nonlocal cochlear models of the transmission line type, describing the motion of basilar membrane (BM) in the cochlea. They are damped dispersive partial differential equations (PDEs) driven by time dependent boundary forcing due to the input sounds. The global well-posedness in time follows from energy estimates. Uniform bounds of solutions hold in the case of bounded nonlinear damping. When the input sounds are multi-frequency tones, and the nonlinearity in the PDEs is cubic, we construct smooth quasi-periodic solutions (multi-tone solutions) in the weakly nonlinear regime, where new frequencies are generated due to nonlinear interaction. When the input consists of two tones at frequencies f1, f2 (f1 < f2), and high enough intensities, numerical results illustrate the formation of combination tones at 2f1 − f2 and 2f2 − f1, in agreement with hearing experiments. We visualize the frequency content of solutions through the FFT power spectral density of displacement at selected spatial locations on the BM." @default.
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- W2134268091 date "2004-01-27" @default.
- W2134268091 modified "2023-10-18" @default.
- W2134268091 title "Global well-posedness and multi-tone solutions of a class of nonlinear nonlocal cochlear models in hearing" @default.
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- W2134268091 doi "https://doi.org/10.1088/0951-7715/17/2/020" @default.
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