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6 papers · 1 filter
Failure of Wiener's property for positive definite periodic functions
Aline Bonami, Szilárd Gy. Révész
We say that Wiener's property holds for the exponent if we have that whenever a positive definite function belongs to for some , then necessarily bel…
Continuous first-passage percolation and continuous greedy paths model: linear growth
Jean-Baptiste Gouere, Regine Marchand
We study a random growth model on introduced by Deijfen. This is a continuous first-passage percolation model. The growth occurs by means of spherical outbursts with random…
Integral Concentration of idempotent trigonometric polynomials with gaps
Aline Bonami, Szilárd Gy. Révész
We prove that for all p>1/2 there exists a constant such that, for any symmetric measurable set of positive measure $E\subset \TT$ and for any , there is an idempote…
Sinc Approximation of the Heat Distribution on the Boundary of a Two-Dimensional Finite Slab
Alain Pham Ngoc Dinh, Pham Hoang Quan, Dang Duc Trong
We consider the two-dimensional problem of recovering globally in time the heat distribution on the surface of a layer inside of a heat conducting body from two interior temperatur…
Relative matched pairs of finite groups from depth two inclusions of von Neumann algebras to quantum groupoids
Jean-Michel Vallin
In this work we give a generalization of matched pairs of (finite) groups to describe a general class of depth two inclusions of factor von Neumann algebras and the C*-quantum grou…
Development of Fractal Geometry in a 1+1 Dimensional Universe
Bruce N. Miller, Jean-Louis Rouet, Emmanuel Le Guirriec
Observations of galaxies over large distances reveal the possibility of a fractal distribution of their positions. The source of fractal behavior is the lack of a length scale in t…