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Cotygodniowe seminarium badawcze.
2020-12-09, godz. 12:15, https://us02web.zoom.us/j/83632151104?pwd=R25GeVZmVS9OWXprWDJBbm9FQ0h3dz09
Aleksandra Puchalska (WMIM UW)
Revision of diffusion on metric graph
Dynamical processes along the edges of a graph with appropriate transmission conditions in the vertices appeared first around 1980. In the last forty years variety of new tools from analysis has been developed to deal with problems of that type firstly in Hilbert than in Banach space. In this talk...
2020-12-02, godz. 12:15, Zoom Meeting https://us02web.zoom.us/j/83632151104?pwd=R25GeVZmVS9OWXprWDJBbm9FQ0h3dz09
Łukasz Woźny (SGH Warsaw School of Economics)
Time consistent equilibria in dynamic models with recursive payoffs and behavioral discounting
We prove existence of time consistent equilibria in a wide class of dynamic models with recursive payoffs and generalized discounting involving both behavioral and normative applications. Our generalized Bellman equation method identifies and separates both: recursive and strategic aspects of the eq...
2020-11-18, godz. 12:15, Zoom Meeting https://us02web.zoom.us/j/83632151104?pwd=R25GeVZmVS9OWXprWDJBbm9FQ0h3dz09
Jacek Miękisz i Marek Bodnar (MIM UW)
Evolution of populations with strategy-dependent time delays
We study the effects of strategy-dependent time delays on equilibria of evolving populations. It is well known that time delays may cause oscillations in dynamical systems. Here we report a novel behavior. We show that microscopic models of evolutionary games with strategy-dependent time delays lead...
2020-06-17, godz. 12:15, meet.google.com/ufe-xfwd-jio
Tomasz Piasecki (MIM UW)
Tomasz Piasecki is going to present recent results of a joint work with Piotr B. Mucha (University of Warsaw) and Magdalena Rosińska (National Institute of Public Health - National Institute of Hygiene). *** Contact tracing and quarantine are well established non-pharmaceutical epidemic control too...
2020-06-10, godz. 12:15, meet.google.com/ufe-xfwd-jio
Dariusz Wrzosek and Purnendu Mishra (MIM UW)
The role of indirect prey-taxis and interference among predators in pattern formation
It is important to find biological factors that may lead to formation of patches in the distribution of species. We build a simple model describing a consumer/predator which, besides random dispersion, searches for food by moving toward the gradient of some chemical released by prey. This mechanism...
2020-06-03, godz. 16:00, meet.google.com/ufe-xfwd-jio
Oskar Górniewicz (Wydział MINI Politechniki Warszawskiej)
Analytical and topological methods of Nash equilibrium searching in non-cooperative games
Analytical and topological methods of Nash equilibrium searching in non-cooperative games - extract from the PhD disertation. *** Hangouts Meet: meet.google.com/ufe-xfwd-jio...
2020-06-03, godz. 12:15, meet.google.com/ufe-xfwd-jio
Roumen Anguelov (University of Pretoria)
The big unknown: The asymptomatic spread of COVID-19
This talk draws attention to the asymptomatic and mildly symptomatic cases of COVID-19, which, according to some reports, may constitute a large fraction of the infected individuals. These cases are often unreported and are not captured in the total number of confirmed cases communicated daily. On t...
2020-05-27, godz. 12:15, meet.google.com/ufe-xfwd-jio
Anna Ochab-Marcinek (Institute of Physical Chemistry, Polish Academy of Sciences)
I will only briefly focus on the technicalities. Polish Ministry of Health publishes a large part of the coronavirus-related data only in the form of bitmap images on Twitter. I wrote a set of Python scripts which use image filtering and OCR to automatically collect the numbers from the images. I pu...
2020-05-20, godz. 12:15, *** meet.google.com/ufe-xfwd-jio
Monika Kurpas, Roman Jaksik and Marek Kimmel (Silesian University of Technology)
Evolutionary analysis and modeling of coronavirus genomes
Studies have shown that novel coronavirus (SARS-CoV-2) causing coronavirus disease 2019 (COVID-19) most likely was transmitted to humans by animal carriers. It is therefore interesting to ask how the virus has evolved in organisms of different hosts. Mathematical tools allow analysis of genomic dive...
2020-05-13, godz. 12:15, meet.google.com/ufe-xfwd-jio
Mateusz Dębowski (MIM UW)
Error estimation in the Runge-Kutta method for systems of ODEs
Sometimes we are not able to provide analytical proof for some properties of the model. In such a case we need to carry out numerical simulations and give a rigorous argument in order to prove considered properties based on error estimation of numerical method. In my presentation I will show a techn...
