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math.FA2025
Filtering of second order generalized stochastic processes corrupted by additive noise
Patrik Wahlberg
We treat the optimal linear filtering problem for a sum of two second order uncorrelated generalized stochastic processes. This is an operator equation involving covariance operato…
math.FA2024
Polynomially oscillatory multipliers on Gelfand-Shilov spaces
Alexandre Arias Junior, Patrik Wahlberg
We study continuity of the multiplier operator acting on Gelfand--Shilov spaces, where is a polynomial on of degree at least two with real coefficients.…