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Prossimi Seminari

  • Optimal Strategy for a Fund Manager with Option Compensation
    Marco Nicolosi, Università degli Studi di Perugia
    martedì 30 maggio 2017 alle ore 12:30, Aula Seminari del Terzo Piano
  • Leggere i dati per progettare le politiche pubbliche per il nuovo millennio: una sfida (im)possibile
    Giovanni Azzone – Piercesare Secchi, Politecnico di Milano
    mercoledì 31 maggio 2017 alle ore 12:15, Campus Leonardo, via Bonardi 9, aula De Donato
  • Astronome del passato – Una, nessuna o centomila?
    Gabriella Bernardi, Giornalista scientifico
    mercoledì 7 giugno 2017 alle ore 12:15, Campus Leonardo, via Bonardi 9, Edificio 14 (Nave), aula B21
  • Dynamical inverse problems in glucose metabolism of cancer
    Michele Piana, Università di Genova, Dipartimento di Matematica
    giovedì 15 giugno 2017 alle ore 14:00, Aula Consiglio, VII piano – Dipartimento di Matematica, Politecnico di Milano – Edificio 14
  • Imaging the brain microstructure with diffusion-weighted MRI
    Maxime Taquet, University of Louvain and Harvard Medical School
    lunedì 26 giugno 2017 alle ore 14:00, Aula Consiglio, VII piano – Dipartimento di Matematica, Politecnico di Milano – Edificio 14
  • Dynamical low rank approximation of random time dependent PDEs
    Fabio Nobile, Mathematics Institute, CSQI, Ecole Polytechnique Fédérale de Lausanne, Switzerland
    giovedì 29 giugno 2017 alle ore 14:00, Aula Consiglio, VII piano – Dipartimento di Matematica, Politecnico di Milano – Edificio 14
  • Numerical simulations of non-ideal compressible-fluid flows
    Alberto Guardone, Politecnico di Milano, Dipartimento di Scienze e Tecnologie Aerospaziali
    giovedì 6 luglio 2017 alle ore 14:00, Aula Consiglio, VII piano – Dipartimento di Matematica, Politecnico di Milano – Edificio 14
  • Multivariate Splines and Their Applications
    Ming-Jun Lai, Dept. of Math. University of Georgia, Athens, GA, USA
    giovedì 20 luglio 2017 alle ore 14:00, Aula Consiglio, VII piano – Dipartimento di Matematica, Politecnico di Milano – Edificio 14
  • SPECTRAL THEORY, SUM RULES AND LARGE DEVIATIONS
    Barry Simon, California Institute of Technology
    lunedì 30 ottobre 2017 alle ore 16:30, Aula Chisini, via Saldini 50
  • RANDOMNESS IN PARTIAL DIFFERENTIAL EQUATIONS
    Felix Otto, Max Plank Institute, Leipzig
    lunedì 20 novembre 2017 alle ore 16:30, Aula Chisini, via Saldini 50


Archivio Seminari


É possibile cercare nell’archivio Seminari del Dipartimento
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Parola da cercare: 

  • A posteriori error analysis and adaptive schemes for the wave equation
    Omar Lakkis, Free University of Bolzano-Bozen, Faculty of Computer Science and University of Sussex, GB
    giovedì 25 maggio 2017 alle ore 14:00, Aula Consiglio, VII piano – Dipartimento di Matematica, Politecnico di Milano – Edificio 14
    ABSTRACT
    Aposteriori error estimates provide a rigorous foundation for the derivation of efficient adaptive algorithms for the approximation of solutions of partial differential equations (PDEs). While the literature is rich with results for the approximation of elliptic and parabolic PDEs, it is much less developed for the hyperbolic equations such as the acoustic or elastic wave equations. In this talk, I will review some of the “standard” aposteriori results for the scalar linear wave equation, including those of [1] and [2], and present recent improvements and further developments to lower order Sobolev norms based on Baker’s Trick [3] for backward Euler schemes. Subsequent focus will be given to practically relevant methods such as Verlet, Cosine, or Newmark methods, a popular example of which is the Leap-frog method [4].
    Notes: This is based on joint work with E.H. Georgoulis, C. Makridakis and J.M. Virtanen.
    References:
    [1] W. Bangerth and R. Rannacher, J. Comput. Acoust. 9(2):575–591, 2001.
    [2] C. Bernardi and E. Süli, Math. Models Methods Appl. Sci. 15(2):199–225, 2005.
    [3] E. H. Georgoulis, O. Lakkis, and C. Makridakis. IMA J. Numer. Anal., 33(4):1245–1264, 2013, http://arxiv.org/abs/1003.3641
    [4] E. H. Georgoulis, O. Lakkis, C. Makridakis, and J. M. Virtanen. SIAM J. Numer. Anal., 54(1), 2016, http://arxiv.org/abs/1411.7572
  • The isoperimetric problem
    Frank Morgan, Williams College
    giovedì 25 maggio 2017 alle ore 16:30, Aula Chisini, via Saldini 50
  • A probabilistic view of the inelastic Boltzmann equation and generalized Kac equations
    Federico Bassetti, Dipartimento di Matematica, Università degli Studi di Pavia
    giovedì 25 maggio 2017 alle ore 15:15 precise, Sala Maestrale, Tender, piano -1
    ABSTRACT
    In this talk we present an overview of some results obtained on a class
    of measure-valued nonlinear kinetic-type equations. We shall show how
    suitable probabilistic techniques, essentially related to central limit
    theorems and fixed point equations for distributions, can be fruitfully
    used to study these equations. In the first part of the talk, we shall
    briefly discuss existence, shape and dynamical stability of equilibria
    for the class of one dimensional
    generalized Kac equations, whose collisional operator is expressed in
    term of a smoothing transformation.
    This class of equations includes the well-known Kac model as well its
    generalisation to inelastic collisions and also various models used in
    econophysic.
    In the second part of the talk we will show how the previous results
    (partially) extend to the multidimensional homogeneous inelastic
    Boltzmann equation.

    The talk is based on some joint works with L. Ladelli, D. Matthes, E.
    Perversi, E. Regazzini, and G. Toscani.
  • Iannis Xenakis: architetto della luce e del suono
    Alessandra Capanna, Università “La Sapienza” ? Roma
    mercoledì 24 maggio 2017 alle ore 12:15, Campus Leonardo, via Bonardi 9, Edificio 14 (Nave), aula B21
  • Transference results from the $L^p$ continuity of operators in the Jacobi case to the $L^p$ continuity of operators in the Hermite and Laguerre case
    Wilfredo Urbina, Roosevelt University – Chicago USA
    mercoledì 24 maggio 2017 alle ore 13:15, Aula seminari 3° piano
    ABSTRACT
    Using the well known asymptotic relations between Jacobi polynomials and Hermite and Laguerre polynomials we develop a transference method to obtain the $L^p$-continuity of the Gaussian-Riesz transform and the $L^p$-continuity of the Laguerre-Riesz transform from the $L^p$-continuity of the Jacobi-Riesz transform, in dimension one as well as the $L^p$-continuity of the Gaussian-Riesz transform and the $L^p$-continuity of the Laguerre-Riesz transform from the $L^p$-continuity of the Jacobi-Riesz transform. The case of the corresponding Littlewood-Paley g-functions will also be discussed.
  • Copula Based Multivariate Semi-Markov Models with Applications in High-Frequency Finance
    Filippo Petroni, Università di Cagliari
    martedì 23 maggio 2017 alle ore 14:00, Aula Seminari del Sesto Piano
  • Mathematical modeling in physiology and medicine: neurological diseases
    Eleuterio Toro, Laboratory of Applied Mathematics, DICAM, University of Trento, Italy
    giovedì 18 maggio 2017 alle ore 14:00, Aula Consiglio, VII piano – Dipartimento di Matematica, Politecnico di Milano – Edificio 14
    ABSTRACT
    There is increasing evidence of the involvement of the dynamics of fluid compartments of the central nervous system (CNS) in the pathophysiology of neurodegenerative diseases.
    Supportive recent advances in human physiology include the discovery of a meningeal lymphatic system. A feasible multidisciplinary holistic approach to understand the basic mechanisms at work is offered by mathematical modelling. In this talk I first give a brief review of some neurological diseases thought to be associated to malfunctions of CNS fluid compartments, such as Multiple Sclerosis, Menieres Disease, Idiopathic Parkinsons Disease, Alzheimers Disease and Idiopathic Intracranial Hypertension. I then describe a global, closed loop mathematical model for the entire human circulation coupled to the dynamics of cerebrospinal fluid (CSF) and brain dynamics. Sample computations on the effect of extracranial venous strictures on CNS haemodynamics and CSF dynamics are presented. Intracranial venous hypertension and disturbed CSF dynamics are predicted. These computational results support recent medical hypotheses and may help to unravel some of the underlying mechanisms of some of these diseases, paving the way to treatment strategies. I then point out some of the limitations of our present mathematical model and describe current work aimed at enhancing it, to include the peripheral as well as the newly discovered brain lymphatic system. Some unresolved mathematical and numerical challenges are briefly described.
  • Oltre il nostro Sistema Solare: alla ricerca di un’altra Terra
    Barbara Negri , ASI Agenzia Spaziale Italiana
    mercoledì 17 maggio 2017 alle ore 12:15, Campus Leonardo, via Bonardi 9, Edificio 14 (Nave), aula B21