Alessandro Russo

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Residual-free bubbles have been recently introduced in order to compute optimal values for the stabilization methods a la Hughes-Franca. However, unless in very special situations, (one-dimensional problems, limit cases, etc.) they require the actual solution of PDE problems (the bubble problems) in each element. Thus they are very diicult to be used in(More)
Mutated Gene PML-RARA NPM1 + NK-NPM1 Complex karyotype CBFB/ MYH11 MLL-X Trisomy 8 RUNX1/ RUNX1T1 Other Total a TCGA FLT3 9 32 9 1 3 2 1 1 5 63 x CSMD1 3 1 0 1 0 0 0 0 1 6 WT1 3 5 5 0 1 1 0 0 2 17 x DDR2 2 0 1 0 0 0 0 0 0 3 KRAS 2 3 2 2 0 0 1 0 1 11 x CALR 2 0 0 0 0 0 0 0 0 2 REV3L 2 0 0 0 0 0 0 0 0 2 TCERG1L 2 0 0 0 0 0 0 0 0 2 FAM5C 1 2 0 1 0 0 0 0 1 5 x(More)
In the original Virtual Element space with degree of accuracy k, projector operators in theH-seminorm onto polynomials of degree ≤ k can be easily computed. On the other hand, projections in the L norm are available only on polynomials of degree ≤ k − 2 (directly from the degrees of freedom). Here we present a variant of VEM that allows the exact(More)
We propose a family of mimetic discretization schemes for elliptic problems including convection and reaction terms. Our approach is an extension of the mimetic methodology for purely diffusive problems on unstructured polygonal and polyhedral meshes. The a priori error analysis relies on the connection between the mimetic formulation and the lowest order(More)
In this paper we present an RGB to XYZ transformation method based on a pattern search optimization algorithm. Whatever strategy is adopted to initialize the color transformation, our method is able to optimize it in order to minimize the color error on a given training set, also taking into account a color mapping constraint. We report experimental results(More)