Kommende 5 dager

i dag okt.
Tid og sted: 21. okt. 2021 12:3013:30, Rest area, 10th floor, NH Abels Hus
22 okt.
Tid og sted: 22. okt. 2021 12:1513:00, Niels Henrik Abels hus, 9th floor, seminar room 919

Abstract: Mixed-dimensional partial differential equations (PDEs) are equations coupling unknown fields defined over domains of differing topological dimensions. Such mixed-dimensional PDEs naturally arise in a wide range of fields including geology, biomedicine, and fracture mechanics. We introduce an automated framework dedicated to mixed-dimensional problems as part of the FEniCS library. This talk gives an overview of the abstractions and algorithms involved. The introduced tools will be illustrated by concrete examples of applications in biomedicine (see below for more detailed context).

This talk is part of the Mechanics Lunch Seminar series. Bring-your-own-lunch and lots of questions.

25 okt.
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Tid og sted: 25. okt. 2021 10:0028. okt. 2021 12:00, Zoom

Professor Dan Crisan, Imperial College London, author of several books on filtering is now holding an intensive course.

Flere kommende arrangementer

Simulation of the Richtmeyer–Meshkov instability
Tid og sted: 26. okt. 2021 10:1512:00, Seminar room 1020, Niels Henrik Abel's house

The PDE seminars for the Autumn of 2021 will be held every Tuesday from 10:15–12:00

Tid og sted: 28. okt. 2021 14:1516:00, NHA B1120
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Tid og sted: 28. okt. 2021 14:3015:30, Rest area, 10th floor, NH Abels Hus
Picture of the candidate.
Tid og sted: 29. okt. 2021 13:15, Room 720, Niels Henrik Abels hus, Zoom

Doctoral candidate Qinghua Liu at the Department of Mathematics, Faculty of Mathematics and Natural Sciences, is  defending the thesis Bayesian Preference Learning with the Mallows Model for the degree of Philosophiae Doctor.

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Tid og sted: 2. nov. 2021 14:1519. okt. 2021 16:00, Erling Sverdrups plass, Niels Henrik Abels hus, 8th floor

Cards are drawn, one at a time, with replacement, from a deck of n cards. I study the total time W_n needed until we have seen all n cards, via different perspectives, along with a Gumbel limiting distribution. Various non-trivial identities, involving different perspectives for moments and Laplace transformations, are found as corollaries. These findings are also used to estimate the number of different cards,if uknown. If I needed to sample 133 words from a document, before I had 50 different words, what is the vocabulary size for the document? How many words did Shakespeare know (including those he never used in his writing)? 

An Abels Tårn podcast about some of these themes, which attracted a fair amount of inspired comments and guesses from the public (specifically, finding the mean of W_n above, for the case of n = 52 cards), can be found on the Abels Tårn website, July 2021, as a conversation with Torkild Jemterud, Jo Røislien, and myself.