NumPI September 2020

numpi@lists.dm.unipi.it

2 participants
4 discussions

Seminar on 06/10 (Milo Viviani)
by Leonardo Robol 06 Oct '20

06 Oct '20

Dear all, below you find the first announcement for the NumPI seminars. The seminar will be next week on Tuesday, and will be online using the conference platform available at the math department. You find the link below (which will stay the same for all conferences, assuming it works well). When entering the conference you will be asked if you want to only listen or to join with microphone; I suggest you choose the latter: you will be muted anyway after joining, but will be able to ask questions at the end if you wish. Best wishes, -- Leonardo. Speaker: Milo Viviani Affiliation: Scuola Normale Superiore, Pisa Time: Tuesday, 06/10/2020, 11:00 Meeting link: https://hausdorff.dm.unipi.it/b/leo-xik-xu4 Title: Symplectic methods for isospectral flows and 2D ideal hydrodynamics The numerical solution of non-canonical Hamiltonian systems is an active and still growing field of research. At the present time, the biggest challenges concern the realization of structure preserving algorithms for differential equations on infinite dimensional manifolds. Several classical PDEs can indeed be set in this framework, and in particular the 2D hydrodynamical Euler equations. In this talk, I will present some results I have obtained during my PhD studies. In particular, I will show how to derive a new class of numerical schemes for Hamiltonian and non-Hamiltonian isospectral flows, in order to solve the 2D hydrodynamical Euler equations. The use of a conservative scheme has revealed new insights in the 2D ideal hydrodynamics, showing clear connections between geometric mechanics, statistical mechanics and integrability theory. https://www.dm.unipi.it/webnew/it/seminari/symplectic-methods-isospectral-f…

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2 PhD positions at Charles University, Prague
by Paola BOITO 28 Sep '20

28 Sep '20

Cari tutti, su richiesta di Stefano Pozza inoltro volentieri questo annuncio per 2 posizioni di PhD e una come postdoc a Praga. Un caro saluto, Paola *************************************** *2 Ph.D. Positions*, Krylov methods and ODE approximation. Two Ph.D. positions are available within the framework of the Primus Research Programme: "A Lanczos-like Method for the Time-Ordered Exponential" at the Faculty of Mathematics and Physics, Charles University, Prague. The four years of Ph.D. studies will be done under the supervision of Dr. Stefano Pozza (PI of the project) in the Department of Numerical Mathematics. The department offers an international environment at one of the top universities in the Czech Republic, and the oldest university in Central Europe. The students will also have the opportunity to work with external collaborators from France, Italy, and the UK. The applicants must hold a Master's degree by the start date of Spring 2021 (to be announced) and should have a strong interest in numerical linear algebra and numerical analysis. Knowledge of Matlab or other programming languages is necessary. Applicants will have to prove their English language level by passing an exam (it is possible to waive the examination under some conditions, see https://www.mff.cuni.cz/en/admissions/admission-procedure-in-phd-programmes…). Application deadline: *November 9, 2020.* More information and application instructions: https://www.starlanczos.cz/open-positions

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NumPI Seminars
by Leonardo Robol 21 Sep '20

21 Sep '20

Dear all, in this semester we won't be able to attend seminars as usual, by physically meeting in a seminar room (or at least, not as easily as it used to be). I had a chat with some of you, and there is some interest in having an online version of the usual seminar series. So here is some practical information: -) The first seminar will be in the week 5/10 - 9/10; I prepared a Doodle [1] for choosing the best possible date, considering most of us will be teaching. Please fill it by the end of this week, and consider that the chosen day of the week will be the same for (most of) the next seminars as well. -) Our first speaker will be Milo Viviani, which is starting a postdoc at SNS with Michele Benzi. Title and abstract will follow in the next days, along with the chosen date and further details. -) I am inclined in using the streaming platform that we have at the department of Mathematics [2], hopefully it will work fine. Otherwise, we will have a backup plan :) More details on this will follow as well. We will have a few internal speakers, and a few "invited" ones; in case you wish to give a talk please write me an e-mail, so we can allocate a slot. See you soon (online or in person)! Best wishes, -- Leonardo. [1] https://doodle.com/poll/qtftd9zsxn6hivp6 [2] https://hausdorff.dm.unipi.it/

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Serie di seminari CommNLA
by Leonardo Robol 07 Sep '20

07 Sep '20

Cari tutti, è cominciata oggi una serie di seminari di algebra lineare numerica pensata per i chi sia all'inizio della carriera accademica, con l'intento di recuperare l'ambiente di discussione informale delle conferenze a cui non abbiamo potuto partecipare. Se siete interessati potete registrarvi [1], in modo da ricevere gli annunci dei seminari; i primi due sono stati oggi (scusate il ritardo!) e continueranno ogni lunedì alle 15.00; si tratta di due seminari da 30 minuti, quelli di oggi saranno presto disponibili su Youtube [2]. Dopo i talk, si può partecipare ad un "coffee-break virtuale" su gather.town [3], dove è possibile interagire con gli speaker e gli altri partecipanti in una sorta di videogioco-conferenza. A presto, -- Leonardo. [1] https://sites.google.com/view/commnla/ [2] https://www.youtube.com/channel/UCSlAhBOIY68IWLxpPUFHuSQ [3] https://gather.town/

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NumPI September 2020