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33 papers · 1 filter
EVN Observations of the BL Lac object ON 231
F. Mantovani, E. Massaro, R. Fanti +3
New EVN images at 5.0 GHz and 8.4 GHz of ON 231 confirm the complex structure of the source, the identification of the core, the presence of components on the two sides of the core…
Optical and Radio emission from BL Lac objects: long-term trends and structural changes
E. Massaro, F. Mantovani
Optical light curves of bright BL Lac objects, in particular those having the SED synchrotron peak at frequencies lower than 10E14 Hz, are characterized by long-term trends with ti…
Multiple-scale analysis and renormalization for pre-asymptotic scalar transport
A. Mazzino, S. Musacchio, A. Vulpiani
Pre-asymptotic transport of a scalar quantity passively advected by a velocity field formed by a large-scale component superimposed to a small-scale fluctuation is investigated bot…
Ground state of many-body lattice systems via a central limit theorem
Carlo Presilla, Massimo Ostilli
We review a novel approach to evaluate the ground-state properties of many-body lattice systems based on an exact probabilistic representation of the dynamics and its long time app…
Continuous Frames, Function Spaces, and the Discretization Problem
Massimo Fornasier, Holger Rauhut
A continuous frame is a family of vectors in a Hilbert space which allows reproductions of arbitrary elements by continuous superpositions. Associated to a given continuous frame w…
Wonderful varieties of type D
Paolo Bravi, Guido Pezzini
Let G be a complex connected semisimple group, whose simple components have type A or D. We prove that wonderful G-varieties are classified by means of combinatorial objects called…