Search Results for author: Mihai Putinar

Found 3 papers, 1 papers with code

Hirschman-Widder densities

no code implementations6 Jan 2021 Alexander Belton, Dominique Guillot, Apoorva Khare, Mihai Putinar

Hirschman and Widder introduced a class of P\'olya frequency functions given by linear combinations of one-sided exponential functions.

Classical Analysis and ODEs Numerical Analysis Numerical Analysis Probability 15B48 (primary), 05E05, 15A15, 30C40, 44A10, 47B34 (secondary)

Data analysis from empirical moments and the Christoffel function

no code implementations19 Oct 2018 Edouard Pauwels, Mihai Putinar, Jean-Bernard Lasserre

Spectral features of the empirical moment matrix constitute a resourceful tool for unveiling properties of a cloud of points, among which, density, support and latent structures.

Data-driven spectral analysis of the Koopman operator

1 code implementation18 Oct 2017 Milan Korda, Mihai Putinar, Igor Mezić

We also show how to compute, from measured data, the spectral projection on a given segment of the unit circle, allowing us to obtain a finite-dimensional approximation of the operator that explicitly takes into account the point and continuous parts of the spectrum.

Dynamical Systems Numerical Analysis Spectral Theory

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