Charles François (systems scientist) Cybernetics Sciences)Honorary President of the Latin American Association of Systemics (ALAS), Honorary Professor of ITBA, Buenos Aires, and was visiting Professor at various universities and educational institutions in Argentina, Perú and Brasil. He became a member of systemic boards and integrated the editorial boards of various journals on Systems and Cybernetics. In 2007 he received from the American Society for Cybernetics, the Norbert Wiener golden medal as a tribute for his work on cybernetics. In 1952 François came in contact with cybernetics through Norbert Wiener's "Cybernetics". In 1958 he joined the Society for General Systems Research now the International Society
Norbert Wiener present formulation, the theorem of Wiener does not have any obvious association with Tauberian theorems, which deal with infinite series; the translation from results formulated for integrals, or using the language of functional analysis and Banach algebras, is however a relatively routine process. The Paley–Wiener theorem relates growth properties of entire functions on C and Fourier transformation of Schwartz distributions of compact support. The Wiener–Khinchin theorem, (or "Wiener – Khintchine theorem" or "Khinchin – Kolmogorov theorem"), states that the power spectral density of a wide-sense-stationary random process is the Fourier transform of the corresponding autocorrelation function. An abstract Wiener space