Periodic distributions and periodic elements in modulation spaces
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DOI: 10.1016/j.aim.2017.10.040
Abstract: Abstract We characterize periodic elements in Gevrey classes, Gelfand–Shilov distribution spaces and modulation spaces, in terms of estimates of involved Fourier coefficients, and by estimates of their short-time Fourier transforms. If q ∈ [ 1… read more here.
Keywords: modulation spaces; periodic distributions; periodic elements; elements modulation ... See more keywords
Periodic Elements in Finite-Type Artin–Tits Groups and Stability Conditions
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DOI: 10.1093/imrn/rnaf259
Abstract: Periodic elements in finite-type Artin–Tits groups are elements some positive power of which is central. We give a dynamical characterisation of periodic elements via their action on the corresponding 2-Calabi–Yau category and on its space… read more here.
Keywords: type artin; stability; finite type; artin tits ... See more keywords