ENG

  • Incontro con Syusy Blady
    25 gennaio 2017 – ore 15.00 Aula Rogers – Via Ampere 2

  • Corso di Studi in Ingegneria Matematica, nuovo progetto di doppia laurea con EPFL
    Double degree Master Program between Politecnico di Milano and EPFL

Laboratory of Modeling and Scientific Computing
MOX
Laboratorio di Modellistica
e
Calcolo Scientifico
Laboratory of Mathematics Education and Scientific Experimentation
EFFEDIESSE
Laboratorio di Formazione
Matematica e di
Sperimentazione Didattica
differential equations at polimi
differential equations
at polimi
Quantitative Finance LAB
Laboratorio di
Finanza Quantitativa
Game Theory And Computation (Group)
Game Theory And Computation
(Group)


Prossimi Eventi

  • gen
    18
    mer
    2017
    Seminario
    18-01-2017, ore 17:15 precise Risultati di approssimazione e loro applicazioni al digital image processing per la diagnosi di patologie vascolari
    Gianluca Vinti

    • SEMINARIO
    • Risultati di approssimazione e loro applicazioni al digital image processing per la diagnosi di patologie vascolari
    • Gianluca Vinti, Università di Perugia
    • Mercoledì 18 gennaio 2017 alle ore 17:15 precise, Aula seminari 6° piano
    • Abstract
      Viene mostrato come alcuni risultati di approssimazione tramite operatori di tipo campionamento svolgono un ruolo importante nell’ambito della ricostruzione di segnali/immagini e vengono discusse alcune loro applicazioni ad immagini CT per la diagnosi di patologie vascolari dell’aorta addominale.

    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano – Telefono: +39 02 2399 4505 – Fax: +39 02 2399 4568
  • gen
    19
    gio
    2017
    gen
    20
    ven
    2017
    Convegno
    19-01-2017 – 20-01-2017 Srp-nupus student trip

    • CONVEGNO
    • SRP-NUPUS
      srp-nupus student trip

      (http://www1.mate.polimi.it/nupus2017/nupus_student_trip_2017.pdf)

    • The Department of Mathematics of the University of Bergen (UiB) organizes a student trip to visit partner institutes in the framework of SRP-NUPUS. In January 2017, they will visit the University of Stuttgart and the Politecnico di Milano. During the stay at MOX, Politecnico di Milano, visiting and hosting students will give talks about their research as basis for further discussions and possible scientific collaborations. See the link for a detailed program.
    • organizzatori Anna Scotti
    • Giovedì 19 gennaio 2017 – Venerdì 20 gennaio 2017
    • MOX
    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano – Telefono: +39 02 2399 4505 – Fax: +39 02 2399 4568
  • gen
    19
    gio
    2017
    Seminario
    19-01-2017, ore 11:00 Two novel classes of discontinuous galerkin finite element methods for time-dependent pde
    Michael Dumbser

    • SEMINARIO
    • Two novel classes of discontinuous galerkin finite element methods for time-dependent pde
    • Michael Dumbser , University of Trento
    • Giovedì 19 gennaio 2017 alle ore 11:00, AULA CONSIGLIO VII PIANO – Edificio 14 La Nave – Dipartimento di Matemcatica MOX, Politecnico di Milano
    • Abstract
      The topic of this talk are two new classes of high order discontinuous Galerkin (DG) finite element methods for the numerical solution of time-dependent partial differential equations (PDE) in two and three space dimensions.
      The first class of schemes (semi-implicit DG methods on staggered grids) has been developed for the incompressible and the compressible Navier-Stokes equations. The key novelty is the use of staggered grids within a DG scheme. The special location of the data (pressure and velocity) on the staggered grid allows a significant simplification of the computation of the numerical fluxes across elements. Compared to standard collocated DG schemes, the linear system to be solved for the pressure has optimal properties: it is symmetric positive definite, has the minimum number of
      unknowns and uses the smallest possible stencil. The second class of methods (explicit ADER-DG schemes on collocated grids) is a fully-discrete predictor-corrector scheme with piecewise polynomial basis functions in space and time. Via a weak formulation of the PDE in spacetime, the predictor constructs an approximate solution of an element-local Cauchy problem in the small, i.e. based only on element-local initial data. For that reason, time consuming MPI communication can be avoided during the arithmetically intensive predictor step. The numerical fluxes across element interfaces are then taken into account in a subsequent corrector step. The new method is therefore particularly suitable for implementation on modern supercomputers. Furthermore, it allows the use of local time steps in a very natural and easy way, while remaining fully conservative and high order accurate in both space and time. Shock waves
      and other discontinuities are treated via a new a posteriori limiter, which does not rely on nonlinear data reconstruction or filtering, as usual DG limiters, but which solves the PDE again, using a more robust finite volume scheme on a locally refined subgrid. We show some examples from the fields of computational fluid dynamics, magneto-hydrodynamics (MHD) and continuum mechanics.

      References:
      M. Dumbser, O. Zanotti, R. Loubère and S. Diot. A Posteriori Subcell Limiting of the Discontinuous Galerkin
      Finite Element Method for Hyperbolic Conservation Laws. Journal of Computational Physics, 278:47–75, 2014
      O. Zanotti, F. Fambri and M. Dumbser. Solving the relativistic magnetohydrodynamics equations with ADER
      discontinuous Galerkin methods, a posteriori subcell limiting and adaptive mesh refinement. Monthly Notices
      of the Royal Astronomical Society (MNRAS), 452:3010-3029, 2015
      M. Dumbser, I. Peshkov, E. Romenski and O. Zanotti. High order ADER schemes for a unified first order
      hyperbolic formulation of continuum mechanics: viscous heat-conducting fluids and elastic solids. Journal of
      Computational Physics 314:824–862, 2016
      M. Dumbser and R. Loubère. A simple robust and accurate a posteriori subcell finite volume limiter for the
      discontinuous Galerkin method on unstructured meshes. Journal of Computational Physics, 319:163–199, 2016
      M. Tavelli and M. Dumbser. A staggered space-time discontinuous Galerkin method for the three-dimensional
      incompressible Navier-Stokes equations on unstructured tetrahedral meshes. Journal of Computational Physics,
      319:294–323, 2016

      contact: christian.vergara@polimi.it

    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano – Telefono: +39 02 2399 4505 – Fax: +39 02 2399 4568
  • gen
    25
    mer
    2017
    Seminario
    25-01-2017, ore 17:15 precise A bernstein-type result for the minimal surface equation
    Alberto Farina

    • SEMINARIO
    • A bernstein-type result for the minimal surface equation
    • Alberto Farina, Université Picardie Jules Verne
    • Mercoledì 25 gennaio 2017 alle ore 17:15 precise, Aula seminari 6° piano
    • Abstract
      We prove the following Bernstein-type theorem: if $u$ is a solution to the minimal surface equation over $R^N$, such that $N-1$ partial derivatives are bounded on one side (not necessarily the same), then $u$ is an affine function. Besides its novelty, our theorem also provides a new, simple and self-contained proof of celebrated results of J. Moser and of E. Bombieri e E. Giusti.

    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano – Telefono: +39 02 2399 4505 – Fax: +39 02 2399 4568
  • gen
    30
    lun
    2017
    Seminario
    30-01-2017, ore 16:00 Dissipative dynamics for large interacting systems
    Boguslaw Zegarlinski

    • SEMINARIO
    • Dissipative dynamics for large interacting systems
    • Boguslaw Zegarlinski , Imperial College London
    • Lunedì 30 gennaio 2017 alle ore 16:00, Aula Seminari del 6 piano
    • Abstract
      I will review recent results and not so recent open problems concerning
      constructions and ergodicity of dissipative dynamics for classical and noncommutative large interacting systems. In particular I will talk about dynamics defined by formally hypoelliptic generators and some generalised Dunkl type extensions, and how to control their long time behaviour (by use of coercive inequalities or generalised gradient type bounds).

    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano – Telefono: +39 02 2399 4505 – Fax: +39 02 2399 4568
  • feb
    17
    ven
    2017
    Seminario
    17-02-2017, ore 14:00 precise A derived category approach to some moduli spaces on cubic threefolds and fourfolds.
    Paolo Stellari

    • SEMINARIO
    • A derived category approach to some moduli spaces on cubic threefolds and fourfolds.
    • Paolo Stellari, Università di Milano
    • Venerdì 17 febbraio 2017 alle ore 14:00 precise, Aula Seminari del terzo piano
    • Abstract
      We exploit the homological properties and the geometric meaning of
      Kuznetsov’s semiorthogonal decomposition of the derived categories of
      cubic fourfolds (and threefolds) to study the (birational) geometry of
      some interesting moduli spaces on such varieties. We will start
      working out the very instructive example of the moduli space of stable
      aCM bundles of a given rank on a cubic threefold. Then we will discuss
      our main result concerning the case of generalized twisted cubics on
      cubic fourfolds not containing a plane. We will show that we can
      recover the picture by Lehn-Lehn-Sorger-van Straten in terms of moduli
      spaces of (weakly) stable sheaves/complexes. This is joint work with
      M. Lahoz, M. Lehn, and E. Macri’.

    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano – Telefono: +39 02 2399 4505 – Fax: +39 02 2399 4568
  • feb
    22
    mer
    2017
    Seminario
    22-02-2017, ore 13:15 precise Asymptotic analysis of linear moore-gibson-thompson equations
    Filippo Dell’oro

    • SEMINARIO
    • Asymptotic analysis of linear moore-gibson-thompson equations
    • Filippo Dell’oro, Politecnico di Milano
    • Mercoledì 22 febbraio 2017 alle ore 13:15 precise, Aula seminari 3° piano
    • Abstract
      We consider the linear third-order Moore-Gibson-Thompson equation arising in acoustics, together with its memory relaxation. We analyze the stability properties of the solutions in dependence of the structural parameters of the models, and we discuss some intrinsic connections with the equation of linear viscoelasticity

    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano – Telefono: +39 02 2399 4505 – Fax: +39 02 2399 4568
  • lug
    05
    mer
    2017
    lug
    07
    ven
    2017
    Convegno
    05-07-2017 – 07-07-2017 Workshop on polytopal element methods in mathematics and engineering

    • CONVEGNO
    • POEMS 2017
      workshop on polytopal element methods in mathematics and engineering

      (http://u53037a.matapp.unimib.it/POEMS2017/index.shtml)

    • organizzatori Paola Antonietti (Politecnico di Milano, Milan, Italy) Lourenço Beirão da Veiga (University of Milano-Bicocca, Milan, Italy) Franco Brezzi (IMATI-CNR, Pavia, Italy) Alessandro Russo (University of Milano-Bicocca, Milan, Italy) Giuseppe Vacca (Universi
    • Mercoledì 5 luglio 2017 – Venerdì 7 luglio 2017
    • Università degli Studi di Milano Bicocca
    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano – Telefono: +39 02 2399 4505 – Fax: +39 02 2399 4568