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Numerical Approximation of Real Finite Nonnegative Function by the Modulus of Discrete Fourier Transform

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The numerical algorithms for finding the lines of branching and branching-off solutions of nonlinear problem on mean-square approximation of a real finite nonnegative function with respect to two variables by the modulus of double discrete Fourier transform dependent on two parameters, are constructed and justified.

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P. Savenko and M. Tkach, "Numerical Approximation of Real Finite Nonnegative Function by the Modulus of Discrete Fourier Transform,"

*Applied Mathematics*, Vol. 1 No. 1, 2010, pp. 65-75. doi: 10.4236/am.2010.11008.

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