Events

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Time: Mar. 5, 2021 11:00 AM12:00 PM
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Time and place: Mar. 10, 2021 9:15 AM, Zoom

Doctoral candidate Christopher Friedemann at the Department of Mathematic, Faculty of Mathematics and Natural Sciences, is  defending the thesis Simulations of two-phase gas-liquid flow in concentric and eccentric annuli at 0 to 90 degrees inclination using the volume of fluid method for the degree of Philosophiae Doctor.

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Time and place: Feb. 26, 2021 12:15 PM1:00 PM, Zoom

Abstract: If a droplet smaller than the capillary length is placed on a substrate with a conical shape, it spreads by itself in the direction of growing fibre radius. We describe this capillary spreading dynamics by developing a lubrication flow approximation on a cone and by using the perturbation method of matched asymptotic expansions. The droplet velocity is found to increase with the cone angle but decrease with the cone radius. We show that a film is formed at the receding part of the droplet, much like the classical Landau–Levich–Derjaguin film. By using the approach of matching asymptotic profiles in the film region and the quasi-static droplet, we obtain the same film thickness as the results from the lubrication approach. Our results show that manipulating the droplet size, the cone angle and the slip length provides different schemes for guiding droplet motion and coating the substrate with a film.​

This talk is part of the Mechanics Lunch Seminar series. That means 20min talks plus discussion in an informal setting.

Zoom: To obtain the Zoom meeting details please contact Timo Koch (timokoch at math.uio.no).

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Time: Feb. 19, 2021 11:00 AM12:00 PM
Time and place: Feb. 17, 2021 11:00 AM12:00 PM, Zoom

C*-algebra seminar talk by Amine Marrakchi (Lyon)

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Time and place: Feb. 12, 2021 11:00 AM12:00 PM, Online
Time and place: Feb. 3, 2021 11:00 AM12:00 PM, Zoom

C*-algebra seminar talk by Yoshimichi Ueda (Nagoya)

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Time and place: Jan. 29, 2021 1:15 PM, Zoom

Doctoral candidate Martin Tveten at the Department of Mathematic, Faculty of Mathematics and Natural Sciences, is  defending the thesis Scalable change and anomaly detection in cross-correlated data for the degree of Philosophiae Doctor.

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Time and place: Jan. 29, 2021 11:00 AM12:00 PM, Online
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Time and place: Jan. 20, 2021 1:15 PM, Zoom

Doctoral candidate Alice Petronella Hedenlund at the Department of Mathematic, Faculty of Mathematics and Natural Sciences, is  defending the thesis Multiplicative Tate Spectral Sequences for the degree of Philosophiae Doctor.

Time and place: Jan. 20, 2021 11:00 AM12:00 PM, Zoom

C*-algebra seminar talk by Olof Giselsson

Time and place: Jan. 15, 2021 12:15 PM1:00 PM, Zoom

Abstract: Physics-informed neural networks (PINNs) are a new and promising methodology to combine deep learning with partial differential equations (PDE). PINNs extend deep neural networks by regularizing their output to fulfill any given PDE, allowing to solve both forward and inverse PDE problems utilizing high-performance machine learning libraries such as Tensorflow and PyTorch. This talk will give a short introduction to PINNs and provide a detailed, tutorial-style code demonstration on their implementation in PyTorch.

This talk is part of the Mechanics Lunch Seminar series. That means 20min talks plus discussion in an informal setting.

Zoom: To obtain the Zoom meeting details please contact Timo Koch (timokoch at math.uio.no).

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Time and place: Jan. 15, 2021 11:00 AM12:00 PM, Online
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Time and place: Dec. 18, 2020 1:15 PM, Zoom

Doctoral candidate Rossana Virginia Rojas Molina at the Department of Mathematic, Faculty of Mathematics and Natural Sciences, is  defending the thesis Membrane budding dynamics by diffusion and kinetic recruitment of proteins for the degree of Philosophiae Doctor.

Time and place: Dec. 11, 2020 11:15 AM12:00 PM, Zoom

C*-algebra seminar talk by Siegfried Echterhoff (Muenster)

Time and place: Dec. 10, 2020 10:00 AMDec. 11, 2020 4:00 PM, Online

You are welcome to attend a two days online workshop on the topic

"Rough Paths and Stochastic Partial Differential Equations". 

Time and place: Dec. 8, 2020 2:15 PM3:15 PM, Niels Henrik Abels hus, 8th floor

William Robert Paul Denault (Department of Genetics and Bioinformatics, Norwegian Institute of Public Health) will give a talk on December 8th at 14:15 (held with restricted attendance in the Erling Sverdrups plass, Niels Henrik Abels hus, 8th floor and streamed in Zoom - the link will be sent by mail one day in advance).

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Time and place: Dec. 8, 2020 1:15 PM, Zoom

Doctoral candidate Lorenzo Ciardo at the Department of Mathematics, Faculty of Mathematics and Natural Sciences, is  defending the thesis Spectral graph parameters and connectivity for the degree of Philosophiae Doctor.

Time and place: Dec. 4, 2020 12:15 PM1:00 PM, Zoom

Abstract: Intraluminal vesicle (ILV) formation plays a crucial role in the attenuation of growth factor receptor signaling. The endosomal sorting complex required for transport (ESCRT-0 to -III/VPS4) mediates this process. The general dogma has been that upstream ESCRTs (0 to II) sequester receptors at the surface of endosomes and the downstream ESCRTs (III/VPS4) remodel the endosome membrane leading to the abscission and formation of receptor-containing ILVs. We now show that upstream ESCRTs not only sequester cargo, but in addition play a crucial role for the initiation of membrane shape remodeling in ILV budding. Through a combination of mathematical modeling and experimental measurements we show that upstream ESCRTs facilitate ILV budding by crowding with a high density in the membrane neck region.

This talk is part of the Mechanics Lunch Seminar series. That means 20min talks plus discussion in an informal setting.

Zoom: To obtain the Zoom meeting details please contact Timo Koch (timokoch at math.uio.no).

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Time and place: Dec. 3, 2020 1:15 PM, Zoom

Doctoral candidate Jonas Moss at the Department of Mathematic, Faculty of Mathematics and Natural Sciences, is  defending the thesis Psychometrics and the modelling of publication bias for the degree of Philosophiae Doctor.

Time: Nov. 27, 2020 2:15 PM3:00 PM

C*-algebra seminar talk by Mario Klisse (Delft)

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Time and place: Nov. 24, 2020 2:15 PM3:15 PM, Niels Henrik Abels hus, 8th floor

Carla Janaina Ferreira (DNV GL) will give a talk on November 24th at 14:15 (held with restricted attendance in the Erling Sverdrups plass, Niels Henrik Abels hus, 8th floor and streamed in Zoom - the link will be sent by mail one day in advance).

Time and place: Nov. 23, 2020 9:15 AMNov. 24, 2020 1:00 PM, Zoom

A large conference in the beautiful Hammamet, along the shores of the blue Mediterranean, was announced to take place at the end of November. Unfortunately, the Corona pandemia got in the way and we shall all hedge the risk. The conference in postponed. For now, we shall have chance to meet virtually by Zoom and enjoy an appetiser of stochastics to keep us fit for the larger event.

The 2-days webinar on November 23-24 from 9:15 to 13:00

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Time and place: Nov. 20, 2020 1:15 PM, Zoom

Doctoral candidate Martin Helsø at the Department of Mathematic, Faculty of Mathematics and Natural Sciences, is  defending the thesis Investigations into real determinantal quartic hypersurfaces for the degree of Philosophiae Doctor.

Time and place: Nov. 20, 2020 12:15 PM1:00 PM, Zoom

Abstract: Due to the fluid nature of biological membranes, proteins are able to diffuse along the membrane surface. Additionally, several processes of vesicle formation require protein recruitment.  We discuss, on one hand, the implications of fixed membrane shapes in protein diffusion, and on the other hand, the effects of protein diffusion and recruitment in membrane shape transformation. 

This talk is part of the Mechanics Lunch Seminar series. That means 20min talks plus discussion in an informal setting.

Zoom: To obtain the Zoom meeting details please contact Timo Koch (timokoch at math.uio.no).