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math.FA2021★ 3 cited
Fréchet algebras with a dominating Hilbert algebra norm
Tomasz Ciaś
Let be the maximal -algebra of unbounded operators on whose domain is the space of rapidly decreasing sequences. This is a noncommuta…
math.FA2013
Right inverses for partial differential operators on spaces of Whitney functions
Tomasz Ciaś
For v\in R^n let K be a compact set in R^n containing a suitable smooth surface and such that the intersection {tv+x:t\in R}\cap K is a closed interval or a single point for all x\…
math.FA2013
On the algebra of smooth operators
Tomasz Ciaś
Let s be the space of rapidly decreasing sequences. We give the spectral representation of normal elements in the Fréchet algebra L(s',s) of the so-called smooth operators. We also…