Notiziario Scientifico
Notiziario dei seminari di carattere matematico
a cura del Dipartimento di Matematica G. Castelnuovo
Sapienza Università di Roma
Settimana dall'1 al 7 ottobre 2018
Martedì 2 ottobre 2018
Ore 09:15, sala affrescata del Chiostro, via Eudossiana 18
Convegno MASCOT 2018
09:15 Registration
10:15 Opening
10:30
How to Get Molecular Dynamics and Continuum Mechanics to Steer Each Other by
Molecularly-based Stress Giovanni Ciccotti
11:15
Strong Stability Preserving General Linear Methods for Differential Systems Zdzislaw Jackiewicz
Solutions of Richards' Equation Using Generalized Differences and Adaptive Time Integration
Francisco J. Domínguez-Mota, Carlos Chavez-Negrete, Daniel Santana-Quinteros, Cuauhtemoc Rivera-Loaiza,
Gerardo Tinoco-Guerrero
Iterative Methods for Linear and Nonlinear Poromechanics Radim Blaheta
Iterative Solution of Horizontal Linear Complementary Problems in Hydrodynamic Lubrification
Francesco Mezzadri, Emanuele Galligani
A mathematical Model to Infer Underground Thermal Parameters for Designing of Borehole Heat Exchangers
Nadaniela Egidi, Josephin Giacomini, Maria Chiara Invernizzi, Pierluigi Maponi, Massimo Verdoya
Uncertainty Quantification Framework for Complex Systems of Solvers
Francois Jacques Sanson, Olivier Le Maitre, Pietro Marco Congedo
14:45
Foundational Methods of Model Structure Evaluation Anthony John Jakeman
GPU Parallelization of Mesh Adaption Techniques by Node Movements in a Riemanian Metric
William Bussiiere, Francois Giubault
Implementation of a Learning Environment for Grid Generation Ricardo Camarero
Mesh Generation for Building Aerodynamics: Challenges, Best Practices and Lessons
Learned Alessandro Gambale
Simulations in Large Tridimensional Discrete Fracture Networks (DFN):I. Geometric
Modeling and Mesh Generation Patrick Laug, Geraldine Pichot
Simulations in Large Tridimensional Discrete Fracture Networks (DFN): II. Flow Simulations
Geraldine Pichot, Patrick Laug, Jocelyne Erhel, Romain Le Goc, Caroline Darcel, Philippe Davy,
Jean-Raynald de Dreuzy
A Quantile-based Approach for the Robust Optimization of a Supersonic ORC Turbine Cascade
Nassim Razaaly, Giacomo Persico, Giulio Gori, Pietro Marco Congedo
Study of the stability of a Generalized Finite Difference Scheme Applied to the
Diffusion Equation in Highly Irregular 2D Space Regions Using Convex Grids
Jose Gerardo Tinoco-Ruiz, Francisco Javier Dominguez-Mota, Gerardo Tinoco-Guerrero,
Juan Salvador Lucas-Martinez
Martedì 2 ottobre 2018
Ore 14:00, aula di Consiglio
seminario di Probabilità
F. Patras (University of Nice)
Revisiting chaos expansions and Wick products
Recently, the interest in the structure of cumulants and
Wick products for non-Gaussian variables has been revived, since they
both play important roles in M. Hairer's theory of regularity
structures. We present a new approach to the theory based on tools
(group actions, Hopf algebras) that allow to understand the theory of
Wick products as a deformation, a presentation from which many of their
properties follow easily. We also discuss how these ideas appear in the
theory of regularity structures. Based on j.w. with K. Ebrahimi-Fard, N.
Tapia, L. Zambotti.
Martedì 2 ottobre 2018
Ore 14:30, aula Dal Passo, dipartimento di Matematica,
Università di Roma Tor Vergata, via della Ricerca Scientifica 1
seminario di Equazioni Differenziali
Antonio Marigonda (Università di Verona)
A Bolza problem for multiagent systems
A multi-agent system is a system in the finite-dimensional
Euclidean space where the number of possibly interacting agents
is so large that only a statistical description of the state of the
system is actually available. A common way to model such kind of
systems is to describe the state of the system at time t by mean of
a Borel measure \(m_t\) where, for each Borel subset A of \(\mathbf{R}^d\),
the quotient \(m_t(A)/m_t(\mathbf{R}^d)\) represents the fraction of the
total number of agents that are present in the set \(A\) at time \(t\)
over the total number of agents. In the case where neither creation nor
destruction of agents are allowed, we normalize the total mass to
the constant 1, thus \(m_t\) becomes a time-depending probability
measure. We consider such a system subject to a centralized
controller aiming to minimize a cost function of Bolza type. We
formulate the minimization problem as a problem for a dynamics
in the Wasserstein space represented by a controlled continuity
equation describing the macroscopical evolution of the system. We
prove that the value function V of the problem solves a Hamilton-
Jacobi equation in the Wasserstein space in a suitable viscosity
sense, and prove a comparison principle for such an equation, thus
characterizing V as the unique viscosity solution of the Hamilton-
Jacobi equation associated to the problem.
Mercoledì 3 ottobre 2018
Ore 09:00, sala affrescata del Chiostro, via Eudossiana 18
Convegno MASCOT 2018
09:00
Revolutionary 21st Century Technology Advances - Transforming Education & Research Bharat K. Soni
09:45
Big Data Challenges in Imaging from Computer Tomography Tomas Sauer
Background Subtraction - Adaptive SVD Revealing Moving Objects Gunther Reitberger
Multiple Multiresolution for Images Dorte Ruweler, Tomas Sauer
11:15
Describing Cell Behavior and Motion with PDE Chemotaxis Models Gabriella Bretti
Collective Dynamics: Mathematical Modelling and Numerical Simulations Maria Menci
Non-local Hybrid Model for Collective Cell Migration Annachiara Colombi
On Chips Reconstitution of Complex Biological Sustems: a Bridge betwenn Biology and
Mathematical Models Adele De Ninno
A one-dimensional Vertical Ecosystem Model for Lake Dynamics Fasma Diele, Mariasilvia
Giamberini, Carmela Marangi, Angela Martiradonna, Antonello Provenzale
14:45
Rate Equations and Memory Propoerties in Models in Heat Conductors Angelo Morro
15:30
A Phase Transition Model for Auxetic Materials Elena Bonetti
Thermoelectric efficiency of Graded SicGe1-c Alloy
Vito Antonio Cimmelli, Patrizia Rogolino
Viscoelastic and Magneto-viscoelastic Materials: an Overview on Recent Results
Sandra Carillo
A Viscoelastic Equation with Nonlinear Density and Memory Effects Monica Conti
Steady States and Nonlinear Buckling of Cable-suspended Beam Systems
Claudio Giorgi, Elena Vuk, Ivana Bochicchio
Boundary Value Problems in Irregular Domains Maria Rosaria Lancia, Simone Creo, Paola Vernole
On the Zeros of Entire Functions Federico Zullo
Modeling Particle-Laden and Poroacoustic Flow Phenomena via the Generalized Continua
Approach Pedro M Jordan
ClusterKDE Algorithm for Clustering Data Based on Kernel Density Estimation
Solange Regina dos Santos
A New Point Cloud Generation for Mesh-less Methods Morteza Namvar, Alizera Jahangirian
Mercoledì 3 ottobre 2018
Ore 14:30, aula di Consiglio,
seminario di Algebra e Geometria
Frédéric Patras (CNRS & Université de Nice Sophia-Antipolis)
Shuffle groups
There is a classical duality between algebraic groups (and finite groups, continuous groups...)
and commutative Hopf algebras. Motivated by several theories and phenomena (universal products
in algebra, free probabilities, the combinatorics of noncrossing partitions...), we investigate
here a noncommutative extension of the theory that gives rise to a family of groups and Lie algebras
equipped with several generalized logarithms (natural maps from the group to the Lie algebra).
The interaction between these various maps and their inverses has a rich algebraic and combinatorial
structure, related among others to the one of noncrossing, boolean and monotone partitions.
J.w. with K. Ebrahimi-Fard.
Giovedì 4 ottobre 2018
Ore 09:00, sala affrescata del Chiostro, via Eudossiana 18
Convegno MASCOT 2018
09:00
Beyond Classical Exponential Analysis: Generalization, Connections and Applications
Annie Cuyt
09:45
Reconstruction of Discontinuos Functions Using Multiquadratic Local Interpolation with Adaptive
Parameter Estimation Francesc Arandiga, Rosa Donat, Lucia Romani, Milvia Rossini
Trivariate Blending Spline Quasi-interpolation Domingo Barrera, Catterina Dagnino,
Maria Jose Ibanez, Sara Remogna
Path Reconstruction Using Bezier Splines and Clusterization Enrico Bertolazzi, Marco Frego
11:15
A Fourier Approach to Spline Hermite Interpolation Costanza Conti, Lucia Romani, Michael Unser
Barycentric Rational Hermite Interpolation with No Poles and High Rates of Approximation
Emiliano Cirillo, Kai Hormann
On Polinomial Reproduction of Helite Subdivision Costanza Conti, Svenja Huening
Fast and Accurate Interpolation of Scattered Hermite Type Data Francesco Dell'Accio
SPH Method: Numerical Investigations and Applications Elisa Francomano, Marta Paliaga
Construction of a New Family of Non-stationary Hermite Subdivision Schemes Reproducing Exponential
Polynomials Byeongseon Jeong, Jungho Yoon
14:45
Computational Modelling of Soft Flowing Crystals Sauro Succi
15:30
A Normalized Information Based Method for Efficient Signal Representation
Vittoria Bruni, Lorenzo Della Cioppa, Domenico Vitulano
Computational Bayesian Methods for ECG Denosing Salvatore Cuomo, Rosanna Compagna,
Raffaele Farina
An Iterative Spectrogram Reassignment of Frequency Modulated Multicomponent Signals
Vittoria Bruni, Michela Tartaglione, Domenico Vitulano
Pattern Recognition in X-ray CT and PET Images Cristina Campi
Learning Conditional Independence Graphs via Sparsity Daniela De Canditiis, Armando Guardasole
On a Class of Fractional Refinable Functions Laura Pezza
17:30
Reconstruction of Images with Discontinuities via Variably Scaled Discontinuous Kernels:
Applications to MPI Francesco Marchetti, Stefano De Marchi, Emma Perracchione
B-spline Bases on the Interval for the Numerical Solution of Fractional Differential
Problems Enza Pellegrino, Laura Pezza, Francesca Pitolli
A Kinetic Neural Network Approach for Absolute Quantification and Change Detection in Positron
Emission Tomography Davide Poggiali
Giovedì 4 ottobre 2018
Ore 14:30, aula di Consiglio
seminario P(n)/N(p)
Erwin Topp Paredes (University of Santiago, Chile)
Viscosity solutions for parabolic equations with Caputo time derivative
In this talk we present existence and uniqueness results for viscosity solutions of
parabolic equations with nonlocal time derivative of Caputo type, as well as extensions
to associated weakly coupled systems. This is a joint work with Miguel Yangari (EPN, Ecuador).
Venerdì 5 ottobre 2018
Ore 09:00, sala affrescata del Chiostro, via Eudossiana 18
Convegno MASCOT 2018
09:00
IST Numerical Schemes for Solving NonLinear Evolution Equations (and their possible
applications for solving time Fractional Differential Equations) Thiab R Taha
09:45
Characterization of Holder-Zygmund Spaces via Non-shift-invariant Tight Frames
Alberto Viscardi
The Phase Retrieval Problem in Ptychographical Imaging Nada Sissouno
Mathematical Algorithms for Digital Image Processing and Applications Gianluca Vinti
11:15
Sportello Matematico: Mathematical Technologies for Innovation
Maurizio Ceseri, Anna Melchiori, Antonino Sgalambro, Silvia Vermicelli
An Adaptive Curvature and Gradient Based Grid Generation Methods
Bonita Valerie Saunders
Another Division of a Cube into six tetrahedral with three similarity Classes
Miguel Angel Padron
Numerical Investigation on the Acoustic Band Structure of Tensegrity Chains
Ada Amendola, Anastasiia Krushynska, Chiara Daraio, Nicola M. Pugno, Fernando Fraternali
Splines of clothoids and related computational algorithms Enrico Bertolazzi,
Marco Frego, Paolo Bevilacqua
12:55 Closing
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