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Responsabile Gestionale: Dr.ssa Franca Di Censo


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Prossimi Eventi

  • mar 27 mer 2019

    Seminar
    Paola Saccomandi, Laser ''su misura'' per il trattamento di tumori,  27-03-2019, ore 12:15
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    • Seminar
    • Paola Saccomandi
    • Politecnico di Milano
    • Laser ''su misura'' per il trattamento di tumori
    • Mercoledì 27 marzo 2019 alle ore 12:15
    • Politecnico di Milano Campus Bonardi Edificio14 aula B21
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • mar 28 gio 2019

    Seminar
    Gianmarco Sperone, Some remarks on the forces exerted by a viscous fluid on a bluff body,  28-03-2019, ore 15:15
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    • Seminar
    • Gianmarco Sperone
    • Politecnico di Milano
    • Some remarks on the forces exerted by a viscous fluid on a bluff body
    • Giovedì 28 marzo 2019 alle ore 15:15
    • Aula seminari 3° piano
    • Abstract
      The theory of flight developed by Kutta, Lanchester and Zhukovsky is mainly based on the idea that a cambered surface produces lift through its ability to generate a vortex about itself. Since fluid flows around an obstacle generate vortices which are difficult to locate and to describe, in this talk we analyze the Stokes and Navier-Stokes equations for the two-dimensional motion of a viscous fluid in the exterior of a fixed obstacle. Firstly, we discuss nonstandard boundary conditions for the Stokes equations on a smooth obstacle, allowing for the generation of turbulence over the leeward wall of the body. Secondly, after studying the connection between the appearance of lift and the unique solvability of the Navier-Stokes equations, we show some numerical results that compare the aerodynamic response of different non-smooth obstacles, as the inlet velocity is increased until reaching the critical Reynolds number. The talk accounts for results contained in two articles prepared in collaboration with Filippo Gazzola and Andrei Fursikov (Moscow State University).
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • apr 02 mar 2019

    MOX Seminar
    Karel Hron E Jitka Machalova, Simplicial splines for representation of density functions,  02-04-2019, ore 15:00 precise
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    MOX
    MOX Statistics

    • MOX Seminar
    • Karel Hron E Jitka Machalova
    • Palacky University di Olomouc
    • Simplicial splines for representation of density functions
    • Martedì 2 aprile 2019 alle ore 15:00 precise
    • Aula Seminari 'Saleri' VI Piano MOX-Dipartimento di Matematica, Politecnico di Milano - Edificio 14
    • Abstract
      In the context of functional data analysis, probability density functions as non-negative functions are characterized by specific properties of scale invariance and relative scale which enable to represent them with the unit integral constraint without loss of information. On the other hand, all these properties are a challenge when the densities need to be approximated with spline functions, including construction of the respective B-spline basis. The Bayes space methodology of density functions enables to express them as real functions in the standard L2 space using the clr transformation. The resulting functions possess the zero integral constraint. This is a key to propose a new B-spline basis, holding the same property, and consequently to build a new class of spline functions, called simplicial splines, which can approximate probability density functions in a consistent way. The contribution provides also construction of smoothing simplicial splines and possi!
      ble orthonormalization of the B-spline basis which might be useful in some applications. Finally, a concise analysis using simplicial splines is demonstrated with anthropometric data for the case of simplicial functional principal component analysis.

      Contact alessandra.menafoglio@polimi.it
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • apr 03 mer 2019

    Seminar
    Tommaso Agasisti, Stima del valore aggiunto di scuola: stato dell'arte del modello invalsi e prospettive. quali implicazioni di policy?,  03-04-2019, ore 12:15
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    • Seminar
    • Tommaso Agasisti
    • Politecnico di Milano
    • Stima del valore aggiunto di scuola: stato dell'arte del modello invalsi e prospettive. quali implicazioni di policy?
    • Mercoledì 3 aprile 2019 alle ore 12:15
    • Politecnico di Milano Campus Bonardi Edificio14 aula B21
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • apr 04 gio 2019

    MOX Seminar Series
    Alfio Borzì, On the modelling of particle and pedestrian motion with fokker-planck equations,  04-04-2019, ore 14:00
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    MOX
    MOX Numeth

    • MOX Seminar Series
    • Alfio Borzì
    • University of Wuerzburg -Germania-
    • On the modelling of particle and pedestrian motion with fokker-planck equations
    • Giovedì 4 aprile 2019 alle ore 14:00
    • Aula Consiglio VII Piano - Edificio 14, Dipartimento di Matematica POLITECNICO DI MILANO
    • Abstract
      Since the pioneering works of A. Einstein, M. von Smoluchowski, and P. Langevin, stochastic processes and the related Fokker-Planck equations have been used to model irregular motion in different situation. These equations are also considered to be adequate for modelling the motion of one pedestrian and of a crowd of people under certain circumstances. Therefore they can play a central role in the design of control strategies for different purposes as well as in the analysis and calibration of microscopic models of pedestrian interaction. The purpose of this talk is to review some mathematical results in this field, which includes different modelling issues concerning the optimal control of a single pedestrian subject to perturbation, the development of a new framework for pedestrians' avoidance dynamics based on the formulation of a Nash game, and a new approach to the analysis of superresolution 2D images of moving molecules on a cell membrane to obtain quantitative results on the organization of the membrane and on the interaction between the molecules.

      [1] M. Annunziato, A. Borzì, A Fokker-Planck control framework for stochastic systems, EMS Surveys In Mathematical Sciences, 5 (2018), 65-98.
      [2] M. Annunziato, A. Borzì, A Fokker-Planck control framework for multidimensional stochastic
      processes, Journal of Computational and Applied Mathematics, 237 (2013), 487-507.
      [3] S. Roy, A. Annunziato, A. Borzì, C. Klingenberg, A Fokker-Planck approach to control collective motion, Computational Optimization and Applications, 69 (2018), 423-459.
      [4] S. Roy, A. Annunziato, A. Borzì, A Fokker-Planck feedback control-constrained approach for modelling crowd motion, Journal of Computational and Theoretical Transport, 45 (2016), 442-458.
      [5] S. Roy, A. Borzì, A. Habbal, Pedestrian motion modelled by Fokker-Planck Nash games, Royal Society open science, 4, (2017) 170648-17.

      Contact: marco.verani@polimi.it

    • Alfio Borzì
      Alfio Borzì received his PhD in Mathematics from SISSA in Trieste, Italy, in 1993. He is professor and chair of scientific computing at the Institute for Mathematics of the University of Würzburg, Germany. He has contributed to the development of computational methodologies for simulation and optimisation with partial differential equations with a focus on multilevel methods, and on the modelling and theoretical and numerical analysis of quantum and stochastic optimal control problems.
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • apr 10 mer 2019

    Seminar
    Sandro Salsa, Problemi di frontiera libera nelle scienze applicate,  10-04-2019, ore 12:15
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    • Seminar
    • Sandro Salsa
    • Politecnico di Milano
    • Problemi di frontiera libera nelle scienze applicate
    • Mercoledì 10 aprile 2019 alle ore 12:15
    • Politecnico di Milano Campus Bonardi Edificio14 aula B21
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • mag 08 mer 2019

    Seminar
    Giovanni Corrao, Errori sistematici e confondimento degli studi osservazionali basati sui dati dal mondo reale,  08-05-2019, ore 12:15
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    • Seminar
    • Giovanni Corrao
    • Università degli Studi di Milano-Bicocca
    • Errori sistematici e confondimento degli studi osservazionali basati sui dati dal mondo reale
    • Mercoledì 8 maggio 2019 alle ore 12:15
    • Politecnico di Milano Campus Bonardi Edificio14 aula B21
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • mag 08 mer 2019

    MOX Seminar Series
    Ronny Ramlau, Inverse problems in adaptive optics,  08-05-2019, ore 14:00
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    MOX
    MOX Numeth

    • MOX Seminar Series
    • Ronny Ramlau
    • RICAM, Austrian Academy of Sciences, Linz, Austria
    • Inverse problems in adaptive optics
    • Mercoledì 8 maggio 2019 alle ore 14:00
    • Aula Consiglio VII Piano - Edificio 14, Dipartimento di Matematica POLITECNICO DI MILANO
    • Abstract
      The image quality of ground based astronomical telescopes suffers from turbulences in the atmosphere. Adaptive Optics (AO) systems use wavefront sensor measurements of incoming light from guide stars to determine an optimal shape of deformable mirrors (DM) such that the image of the scientific object is corrected after reflection on the DM(s). The operation of the AO systems of the new generation of large astronomical telescopes under construction requires new mathematical methods that achieve reconstruction in real time. In the talk we will in particular focus on methods for wavefront reconstruction from pyramid sensor data and an analysis of the atmospheric tomography operator.

      Contact christian.vergara@polimi.it
    • Ronny Ramlau
      Prof Ronny Ramlau had his Diploma (1994) and his PhD (1997) in Mathematics in both at the Potsdam University, and did his Habilitation at the University of Bremen in 2003. He is professor for Industrial Mathematics at the Johannes Kepler University, Linz since 2008. Since 2013 he is Director at the Johann Radon Institute of Computational and Applied Mathematics (RICAM) at the Austrian Academy of Sciences, Linz. He is involved in many research projects either as PI or as collaborator. His main scientific interests are nonlinear inverse problems, regularization methods, medical imaging, industrial applications and mathematical methods in astronomy.
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • mag 15 mer 2019

    Seminar
    Pasquale Ciarletta, Forma e complessità in natura: perché il mondo è matematico?,  15-05-2019, ore 12:15
    logo matematica
    • Seminar
    • Pasquale Ciarletta
    • Politecnico di Milano
    • Forma e complessità in natura: perché il mondo è matematico?
    • Mercoledì 15 maggio 2019 alle ore 12:15
    • Politecnico di Milano Campus Bonardi Edificio14 aula B21
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • mag 22 mer 2019

    Seminar
    Giulia Di Nunno, Matematica, società, economia e sviluppo,  22-05-2019, ore 12:15
    logo matematica
    • Seminar
    • Giulia Di Nunno
    • University di Oslo
    • Matematica, società, economia e sviluppo
    • Mercoledì 22 maggio 2019 alle ore 12:15
    • Politecnico di Milano Campus Bonardi Edificio14 aula B21
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • mag 29 mer 2019

    Seminar
    Francesca Piredda, Comunicare il progetto. storytelling e tecniche di rappresentazione,  29-05-2019, ore 12:15
    logo matematica
    • Seminar
    • Francesca Piredda
    • Politecnico di Milano
    • Comunicare il progetto. storytelling e tecniche di rappresentazione
    • Mercoledì 29 maggio 2019 alle ore 12:15
    • Politecnico di Milano Campus Bonardi Edificio14 aula B21
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • mag 30 gio 2019

    MOX Seminar Series
    Piotr Smolarkiewicz, Semi-implicit finite-volume integrators for all-scale atmospheric dynamics,  30-05-2019, ore 14:00
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    MOX
    MOX Numeth
    MOX Compgeo

    • MOX Seminar Series
    • Piotr Smolarkiewicz
    • European Centre for Medium-Range Weather Forecasts, Reading, Berkshire, United Kingdom
    • Semi-implicit finite-volume integrators for all-scale atmospheric dynamics
    • Giovedì 30 maggio 2019 alle ore 14:00
    • Aula Consiglio VII Piano - Edificio 14, Dipartimento di Matematica POLITECNICO DI MILANO
    • Abstract
      This talk outlines a novel numerical approach for accurate and computationally efficient integrations of PDEs governing all-scale atmospheric dynamics. Such PDEs are not easy to handle, due to a huge disparity of spatial and temporal scales as well as a wide range of propagation speeds of natural phenomena captured by the equations. Moreover, atmospheric dynamics constitutes only a small perturbation about dominant balances that result from the Earth gravity, rotation, composition of its atmosphere and the energy input by the solar radiation. Maintaining this mean equilibrium, while accurately resolving the perturbations, conditions the design of atmospheric models and subjects their numerical procedures to stringent stability, accuracy and efficiency requirements.
      The novel Finite-Volume Module of the Integrated Forecasting System (IFS) at ECMWF (hereafter IFS-FVM) solves perturbation forms of the fully compressible Euler/Navier-Stokes equations under gravity and rotation using non-oscillatory forward-in-time semi-implicit time stepping and finite-volume spatial discretisation. The IFS-FVM complements the established semi-implicit semi-Lagrangian pseudo-spectral IFS (IFS-ST) with the all-scale deep-atmosphere formulation cast in a generalised height-based vertical coordinate, fully conservative and monotone advection, flexible horizontal meshing and a predominantly local communication footprint. Yet, both dynamical cores can share the same quasi-uniform horizontal grid with co-located arrangement of variables, geospherical longitude-latitude coordinates and physics parametrisations, thus facilitating their synergetic relation.
      The focus of the talk is on the mathematical/numerical formulation of the IFS-FVM with the emphasis on the design of semi-implicit integrators and the associated elliptic Helmholtz problem. Relevant benchmark results and comparisons with corresponding IFS-ST results attest that IFS-FVM offers highly competitive solution quality and computational performance.

      Contact: luca.bonaventura@polimi.it
    • Piotr Smolarkiewicz
      Piotr Smolarkiewicz received M.Sc. and Ph.D. degrees from the University of Warsaw, in geophysics and physical sciences in 1973 and 1980, respectively. In 1981, he went to Boulder, Colorado, to join as a post-doctoral fellow in the Advanced Study Program at the National Center for Atmospheric Research (NCAR). Since 1973, he has been an assistant professor at the Department of Physics, University of Warsaw. After the post-doctoral appointment, since 1983 he has been a scientist at NCAR, in the rank of Senior Scientist since 1994. In 2005-2006, he served as an NCAR Science Advisor, and since 2007 he has been the Head of the Computational Mathematics Group at the Institute for Mathematics Applied to Geosciences (IMAGe) of NCAR. In 2013 he joined the Research Department of the European Centre for Medium-Range Weather Forecasts (ECMWF) as a consultant. Piotr's research centres on computational fluid dynamics (CFD), with particular emphasis on all-scale geophysical circulations and basic fluid dynamic of rotating stratified flows. He is the principal developer of the multi-scale, multi-physics, high-performance research code EULAG built on high-resolution transport methods MPDATA, which he has originated and developed at NCAR. Piotr’s interests include scientific computing, geophysical flows of all scales, solar dynamo, physics of plasmas, non-Newtonian fluids, and dynamics of continuous media. His current activities at ECMWF focus on the development of an interdisciplinary forecasting system (PantaRhei) for simulating multi-scale fluid flows.
    • Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

  • lug 22 lun 2019

    lug 24 mer 2019

    Convegno
    Rism 2019 - modelling the cardiac function - iheart
    22/07/2019 - 24/07/2019
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    • CONVEGNO
    • MCF2019
      Rism 2019 - modelling the cardiac function - iheart
    • organizzatori
      A. Quarteroni, L. Dedè, A. Manzoni, S. Serra-Capizzano, C. Vergara, P. Zunino
    • This congress, organised in the context of the prestigious Riemann International School of Mathematics, aims at focusing on the state of the art in the mathematical modelling and numerical simulation of the cardiac function and its clinical applications. This event will host 8 plenary lectures from distinguished scientists as well as contributed talks some presented by PhD students and some by senior researchers, and a poster session. PhD students selected for contributed presentation will be offered free accommodation. The Congress is organized by RISM and MOX - Politecnico di Milano, and is partially supported by the EU ERC-ADG - Advanced Grant iHEART Project ID: 740132 - iheart.polimi.it
    • Lunedì 22 luglio 2019 - Mercoledì 24 luglio 2019
      Villa Toeplitz - Varese
    Politecnico di Milano, Dipartimento di Matematica via Bonardi 9, 20133 Milano - Telefono: +39 02 2399 4505 - Fax: +39 02 2399 4568

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