EVENTS LIST

NOVA Math > EVENTS LIST
12 November 2024
  • [VAL] Sudhir Ghorpade (Indian Institute of Technology Bombay, India)

    7 November 2024 - 12 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

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18 November 2024
  • [VBio] Bob W. Kooi (Faculty of Science VU Amsterdam, Netherlands & BCAM - Basque Center for Applied Mathematics, Spain)

    18 November 2024 - 22 November 2024 - 

    Venue: office 10, 3rd floor of the Mathematics Department Building

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  • [VOR] Claudia Archetti (University of Brescia, Italy)

    18 November 2024 - 21 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

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19 November 2024
  • [VBio] Bob W. Kooi (Faculty of Science VU Amsterdam, Netherlands & BCAM - Basque Center for Applied Mathematics, Spain)

    18 November 2024 - 22 November 2024 - 

    Venue: office 10, 3rd floor of the Mathematics Department Building

    See more details

  • [VOR] Claudia Archetti (University of Brescia, Italy)

    18 November 2024 - 21 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

    See more details

  • [Bio Short-course] Modelling and application of bifurcation theory for epidemiological models , Bob W. Kooi (VU Amsterdam & BCAM)

    19 November 2024 - 10:00 - 12:00
    Lab 2.2

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20 November 2024
  • [VBio] Bob W. Kooi (Faculty of Science VU Amsterdam, Netherlands & BCAM - Basque Center for Applied Mathematics, Spain)

    18 November 2024 - 22 November 2024 - 

    Venue: office 10, 3rd floor of the Mathematics Department Building

    See more details

  • [VOR] Claudia Archetti (University of Brescia, Italy)

    18 November 2024 - 21 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

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  • [SOR] Integrating public transport in sustainable last-mile delivery | Claudia Archetti (University of Brescia, Italy)

    20 November 2024 - 14:00 - 15:00
    Sala 1.4 - VII

    Abstract: Integrating public transport in sustainable last-mile delivery

    We consider a delivery system for last-mile deliveries in urban areas based on the use of Public Transport Service. The idea is to exploit the spare capacity of public transport means to transport parcels within urban areas, thus reducing externalities caused by commercial delivery vans. Specifically, the system is such that parcels are first transported from origins to drop-in stations on public vehicles itineraries. Then, they are transported through public vehicles to drop-out stations, from where they are delivered to destination by freighters using green vehicles. The system is known as Freight-On-Transit (FOT). We present the optimization problem related with and operational decisions, as well as ad-hoc solution methodologies and simulations on synthetic data. 

    SHORT BIO

    ARCHETTI CLAUDIA

    Claudia Archetti is Associate Professor of Operations Research at University of Brescia. From September 2021 to September 2024, she was Full Professor in Operations Research at ESSEC Business School in Paris. The main areas of the scientific activity are: models and algorithms for vehicle routing problems; mixed integer mathematical programming models for the minimization of the sum of inventory and transportation costs in logistic networks; exact and heuristic algorithms for supply-chain management; reoptimization of combinatorial optimization problems. 

    She is author of more than 100 papers in international journals. She is co-Editor in Chief of Networks. She was VIP3 of EURO, the Association of European Operational Research Societies, in charge of publications and communication.

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  • [SBio] Bifurcation analysis of epidemiological models for Dengue fever, Bob W. Kooi (VU Amsterdam & BCAM)

    20 November 2024 - 15:15 - 16:15
    Lab 2.2

    Joint with Analysis Seminar

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21 November 2024
  • [VBio] Bob W. Kooi (Faculty of Science VU Amsterdam, Netherlands & BCAM - Basque Center for Applied Mathematics, Spain)

    18 November 2024 - 22 November 2024 - 

    Venue: office 10, 3rd floor of the Mathematics Department Building

    See more details

  • [VOR] Claudia Archetti (University of Brescia, Italy)

    18 November 2024 - 21 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

    See more details

  • [Bio Short-course] Modelling and application of bifurcation theory for epidemiological models , Bob W. Kooi (VU Amsterdam & BCAM)

    21 November 2024 - 14:00 - 16:00
    Lab 2.2

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22 November 2024
  • [VBio] Bob W. Kooi (Faculty of Science VU Amsterdam, Netherlands & BCAM - Basque Center for Applied Mathematics, Spain)

    18 November 2024 - 22 November 2024 - 

    Venue: office 10, 3rd floor of the Mathematics Department Building

    See more details

25 November 2024
  • [VDataScience] Miguel F. Anjos (University of Edinburgh, Scotland)

    25 November 2024 - 29 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

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26 November 2024
  • [VDataScience] Miguel F. Anjos (University of Edinburgh, Scotland)

    25 November 2024 - 29 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

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27 November 2024
  • [VDataScience] Miguel F. Anjos (University of Edinburgh, Scotland)

    25 November 2024 - 29 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

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  • [SDataScience] Optimizing the Present and Future of Smart Electric Power Grids | Miguel F. Anjos (University of Edinburgh)

    27 November 2024 - 14:00 - 15:00
    Room 1.5, Building VII, NOVA FCT

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  • [CourseDataScience] Optimization Models for Unit Commitment in Electric Energy Systems | Miguel F. Anjos (University of Edinburgh)

    27 November 2024 - 15:00 - 18:00
    NOVA FCT, Lab 2.2, Building VII

    Title: Optimization Models for Unit Commitment in Electric EnergySystems

    Speaker: Miguel F. Anjos (University of Edinburgh)

    Description: The unitcommitment (UC) problem addresses a fundamental decision that is taken whenoperating a power system, namely to set the schedule of power production foreach generating unit in the system so that the demand for electricity is met atminimum cost. The schedule must also ensure that each unit operates within itstechnical limits; these typically include ramping constraints and minimumuptime/downtime constraints. Units that are scheduled to produce electricityduring a given time period are said to be committed for that period. Variousjurisdictions solve UC on a daily basis. In particular, it is the standard toolto clear spot markets, and particularly the day-ahead markets in the USA. InNorth American jurisdictions without markets, the system operators use UC todetermine the day-ahead commitments and dispatches. This mini-course will coversome of the most relevant mathematical optimization models for UC and lead upto open research problems. 

    Part I, 27thNovember, 15:00 – 18:00 - Basics of Unit Commitment and Modern Electric Energy Systems 

    Part II,28th November, 14:00-17:00 - Unit Commitment Under Uncertainty & Additional Topics

    Registrationcan be completed here.

    Other info: 

    The lectures will be based on the tutorial: 

    M.F. Anjos and A.J. Conejo. Unit Commitmentin Electric Energy Systems, Now Foundations and Trends, 2017 (ISBN978-1-68083-370-6). http://dx.doi.org/10.1561/3100000014

    Participants should have a laptop computer with access to theinternet. No specific software is required. Knowledge of AMPL or a similar optimizationmodelling language will help but is not essential as the mini-course will beself-contained in this regard. 

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28 November 2024
  • [VDataScience] Miguel F. Anjos (University of Edinburgh, Scotland)

    25 November 2024 - 29 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

    See more details

  • [CourseDataScience] Optimization Models for Unit Commitment in Electric Energy Systems | Miguel F. Anjos (University of Edinburgh)

    28 November 2024 - 14:00 - 17:00
    NOVA FCT, Lab 2.2, Building VII

    Title: Optimization Models for Unit Commitment in Electric EnergySystems

    Speaker: Miguel F. Anjos (University of Edinburgh)

    Description: The unitcommitment (UC) problem addresses a fundamental decision that is taken whenoperating a power system, namely to set the schedule of power production foreach generating unit in the system so that the demand for electricity is met atminimum cost. The schedule must also ensure that each unit operates within itstechnical limits; these typically include ramping constraints and minimumuptime/downtime constraints. Units that are scheduled to produce electricityduring a given time period are said to be committed for that period. Variousjurisdictions solve UC on a daily basis. In particular, it is the standard toolto clear spot markets, and particularly the day-ahead markets in the USA. InNorth American jurisdictions without markets, the system operators use UC todetermine the day-ahead commitments and dispatches. This mini-course will coversome of the most relevant mathematical optimization models for UC and lead upto open research problems. 

    Part I, 27thNovember, 15:00 – 18:00 - Basics of Unit Commitment and Modern Electric Energy Systems 

    Part II,28th November, 14:00-17:00 - Unit Commitment Under Uncertainty & Additional Topics

    Registrationcan be completed here.

    Other info: 

    The lectures will be based on the tutorial: 

    M.F. Anjos and A.J. Conejo. Unit Commitmentin Electric Energy Systems, Now Foundations and Trends, 2017 (ISBN978-1-68083-370-6). http://dx.doi.org/10.1561/3100000014

    Participants should have a laptop computer with access to theinternet. No specific software is required. Knowledge of AMPL or a similar optimizationmodelling language will help but is not essential as the mini-course will beself-contained in this regard. 

    See more details

29 November 2024
  • [VDataScience] Miguel F. Anjos (University of Edinburgh, Scotland)

    25 November 2024 - 29 November 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

    See more details

4 December 2024
  • [SDataScience] Mechanistic mathematical models of harmful algal species | Ming Li (University of Maryland Center for Environmental Science)

    4 December 2024 - 14:00 - 15:00
    Room 1.5, Building VII, NOVA FCT

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  • [SAn] Pulse vaccination in a SIR model: Global dynamics, bifurcations and seasonality | Alexandre Rodrigues (ISEG - Universidade de Lisboa, Portugal)

    4 December 2024 - 14:15 - 15:15
    Room 1.6, building VII.

                          

    Title: Pulse vaccination in a SIR model: Global dynamics, bifurcations and seasonality.

    Speaker: Alexandre Rodrigues (ISEG - Universidade de Lisboa, Portugal).

    Time: Wednesday, 4 December 2024,from 14:15 to 15:15.

    Place: Room 1.6, building VII.


    Abstract: 
    In this talk, I analyze a periodically forced dynamical system inspired by the SIR model with impulsive vaccination. I characterize its dynamics according to the proportion of vaccinated individuals and the time between doses. I draw the associated bifurcation diagram. I also explore analytically and numerically chaotic dynamics by adding seasonality to the disease transmission rate. This is a joint work with João Maurício de Carvalho (University of Porto).

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9 December 2024
  • [Visiting Researcher - An] George Tephnadze (University of Georgia, Tbilisi, Georgia)

    9 December 2024 - 19 December 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

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10 December 2024
  • [Visiting Researcher - An] George Tephnadze (University of Georgia, Tbilisi, Georgia)

    9 December 2024 - 19 December 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

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  • [Mini-courseAn] Introduction to Dyadic Analysis | George Tephnadze (University of Georgia, Tbilisi, Georgia)

    10 December 2024 - 10:00 - 12:00
    To announce.

    Title: Introduction to Dyadic Analysis.

    Speaker: George Tephnadze (University of Georgia, Tbilisi, Georgia).

    Lecture 1: Tuesday, 10 December 2024, from 10:00 to 12:00.

    Lecture 2Thursday, 12 December 2024, from 10:00 to 12:00.

    Lecture 3Monday, 16 December 2024, from 10:00 to 12:00.

    Lecture 4Wednesday, 18 December 2024, from 10:00 to 12:00.

    Place: To announce.

    Abstract: The fact that the Walsh system is the group of characters of a compact Abelian group connects dyadic analysis with abstract harmonic analysis. Later on, in 1947 Vilenkin introduced a large class of compact groups (now called Vilenkin groups) and the corresponding characters, which include the dyadic group and the Walsh system as a special case. Pontryagin, Rudin, Hewitt and Ross investigated such problems of harmonic analysis on groups.
       Unlike the classical theory of the Fourier series, which deals with decomposing a function into continuous waves, the Walsh (Vilenkin) functions are rectangular waves. There are many similarities between these theories, but there are also differences. Much of these can be explained by modern abstract harmonic analysis, which studies orthonormal systems from the point of view of the structure of a topological group. This point of view leads naturally to a new domain of considering Fourier Analysis on locally compact Abelian groups and dyadic (Walsh) group provides an important model on which one can verify and illustrate many questions from abstract harmonic analysis.
       This introduction consists of 4 lectures and is aimed at Ph.D. students and researchers without an initial background on the subject.

    Lecture 1: We define the Walsh group and functions and equip this group with the topology and Haar measure. Moreover, we investigate the character functions of the Walsh group, and the representation of the Walsh group on the interval [0,1). We also investigate some rearmament of the Walsh system, which is called the Kaczmarz system, and some generalizations, which are called Vilenkin groups and zero-dimensional groups.

    Lecture 2: We define and investigate Dirichlet kernels, Lebesgue constants and partial sums with respect to the Walsh system and show that the localization principle holds for the Walsh-Fourier series and it is not true for the Walsh-Kaczmarz Fourier series. We define Lebesgue points and investigate almost everywhere convergence of subsequences of partial sums of the Walsh-Fourier series of integrable functions.

    Lecture 3: We define and discuss Walsh-Fejér kernels and means, Walsh-Lebesgue points and investigate approximation properties and almost everywhere convergence of Fejér means in Lebesgue spaces.

    Lecture 4: We define and discuss conditional expectation operators, martingales and martingale Hardy spaces. We also state several interesting open problems in this theory.

       This introduction to dyadic analysis is based on the following recent book (where complementary information and several open problems can be found in more general case):

    L. E. Persson, G. Tephnadze and F. Weisz, Martingale Hardy Spaces and Summability of one-dimensional Vilenkin-Fourier Series, Birkhäuser/Springer, 2022.

    *https://www.ug.edu.ge/en/persons/full/9177

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11 December 2024
  • [Visiting Researcher - An] George Tephnadze (University of Georgia, Tbilisi, Georgia)

    9 December 2024 - 19 December 2024 - 

    Venue: office 2, 3rd floor of the Mathematics Department Building

    See more details

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