## Visiting address

Ullevål StadionSognsveien 77B

0855 OSLO

Norway

Time and place:
June 15, 2017 1:15 PM,
Aud. 4 Vilhelm Bjerknes' hus

Diplom Math. Martin Werner Licht ved Matematisk institutt vil forsvare sin avhandling for graden ph.d.:

**On the A Priori and A Posteriori Error Analysis in Finite Element Exterior Calculus**

Time and place:
June 15, 2017 10:15 AM,
Aud. 4 Vilhelm Bjerknes' hus

Diplom Math. Martin Werner Licht ved Matematisk institutt avholder prøveforelesning over oppgitt emne: "Discontinuous Petrov Galerkin Methods for Second-Order Elliptic Boundary Value Problems".

Time and place:
June 14, 2017 10:15 AM - 3:30 PM,
VB Aud 4 (Aud 5 fra kl. 13.30)

Den 14. juni 2017 er det 100 år siden Atle Selberg ble født. Han regnes som en av de fremste tallteoretikerne i verden gjennom tidene og mottok bl.a. Fieldsmedaljen i 1950 og Wolfprisen i 1986. Han hadde hele sin studietid ved UiO, der han tok doktorgraden i 1942.

Matematisk Institutt ved UiO vil markere jubileet på selve dagen den 14. juni.

Time and place:
June 9, 2017 9:15 AM - 1:00 PM,
Niels Henrik Abels hus, room 126

Andrey Pilipenko (Institute of Mathematics of Ukrainian National Academy of Sciences) gives a minicourse with the title: Reflected Stochastic Differential Equations.

Time and place:
June 8, 2017 2:15 PM - 4:00 PM,
Niels Henrik Abels hus, room 126

Time and place:
June 7, 2017 2:15 PM - 4:00 PM,
Niels Henrik Abels hus, room 126

Time and place:
June 7, 2017 1:15 PM - 2:00 PM,
Niels Henrik Abels hus, room 1036

Yaozhong Hu (University of Kansas) gives a lecture with the title: Feynman-Kac formula for the stochastic heat equation driven by fractional noise in time with $H\in (0,1/2)$.

Time and place:
May 31, 2017 1:15 PM - 3:00 PM,
Niels Henrik Abels hus, room 107

Yaozhong Hu (University of Kansas) gives a minicourse with the title: Some aspects of stochastic heat equations.

Time:
May 30, 2017 2:15 PM

A double seminar will be held in the lunch area, 8th floor Niels Henrik Abels hus at 14:15. We will have talks by Ruth Keogh (Department of Medical Statistics, London School of Hygiene and Tropical Medicine) and Maximilian Coblenz (Institute of Operations Research, Karlsruhe Institute of Technology).

Time and place:
May 29, 2017 1:15 PM - 3:00 PM,
Niels Henrik Abels hus, room 107

Time and place:
May 18, 2017 2:30 PM - 3:30 PM,
Rest area 7. floor

*Abstract: I will discuss the two main syntheses that occured duing the "wavelet revolution" in the second half of the 1980s: one concerning the many aspects of what we now call wavelets, another concerning the relations between conjugate mirror filters, multiresolution approximations and orthonormal wavelet bases.*

Coffee/tea and cookies will be served from 14.00 to 14.30.

Time and place:
May 12, 2017 12:15 PM - 2:00 PM,
NH Abel's hus, room U26

This is the second of two lectures by Anders Hansen (Cambridge Univ. and UiO) on Foundational Computational Problems in l^1 and Total Variation Regularisation.

Time and place:
May 12, 2017 11:15 AM - 12:00 PM,
NHA bygget 9 etg B91

Study of the air-flow very close to the surface of wind-generated water waves Marseille large air-water facility

Time and place:
May 11, 2017 12:45 PM - 1:45 PM,
Abels utsikt 12. floor

Time and place:
May 11, 2017 10:15 AM - 12:00 PM,
VB, Auditorium 4

This is the first of two lectures by Anders Hansen (Cambridge Univ. and UiO) on Foundational Computational Problems in l^1 and Total Variation Regularisation.

Time and place:
May 10, 2017 2:15 PM - 4:00 PM,
B 738

Topological cyclic homology is a variant of negative cyclic homology which was introduced by Bökstedt, Hsiang and Madsen. They invented topological cyclic homology to study algebraic K-theory but in recent years it has become more and more important as an invariant in its own right. We present a new formula for topological cyclic homology and give an entirely model independent construction. If time permits we explain consequences and further directions.

Time and place:
May 9, 2017 2:15 PM - 4:00 PM,
VB, Auditorium 4

This is the second of two lectures by Anders Hansen (Cambridge Univ. and UiO) on Compressed sensing - Structure and Imaging.

Time:
May 9, 2017 2:15 PM

Willi Sauerbrei (Institute for Medical Biometry and Statistics, University of Freiburg) will give a seminar in the lunch area, 8th floor Niels Henrik Abels hus at 14:15.

Time and place:
May 8, 2017 12:15 PM - 2:00 PM,
VB, Auditorium 2

This is the first of two lectures by Anders Hansen (Cambridge Univ. and UiO) on Compressed sensing - Structure and Imaging.

Time and place:
May 5, 2017 12:45 PM - 1:45 PM,
Rest area 7. floor

Time and place:
May 3, 2017 2:15 PM - 4:00 PM,
B 738

Joint work with Bjørn I. Dundas. We prove that algebraic K-theory, topological Hochschild homology and topological cyclic homology satisfy cubical and cosimplicial descent at connective structured ring spectra along 1-connected maps of such ring spectra.

Time and place:
Apr. 28, 2017 11:15 AM - 12:00 PM,
NHA bygget 9 etg B91

**Activity at IFE Wind Energy: numerical modeling of offshore wind turbines**

IFE (Institutt for Energiteknikk) is a research center located in Kjeller. The wind group at IFE mainly works with the development and analysis of new cost effective concepts for offshore wind energy, both concerning innovative rotor designs and new concepts for substructures. The group main investigation tool is the in-house software 3DFloat, an aero-elastic code which can simulate the whole wind turbine structure when exposed to the associated environmental loads (wind loads, hydrodynamic loads, soil loads if bottom-fixed).

In the presentation, an insight into the wave kinematics and wave loads modeling tools that are currently included in 3DFloat will be provided.

Time and place:
Apr. 27, 2017 1:15 PM - 2:00 PM,
Niels Henrik Abels hus, room 107

Lluís Quer-Sardanyons (Universitat Autònoma de Barcelona) gives a lecture with the title: The Hyperbolic Anderson Model with rough noise in space

Time and place:
Apr. 27, 2017 10:00 AM -
Apr. 28, 2017 2:00 PM,
Niels Henrik Abels building

The second Scandinavian Gathering Around Remarkable Discrete Mathematics

Time and place:
Apr. 26, 2017 2:15 PM - 4:00 PM,
B 738

In this talk all spaces and spectra will be localised at 2. Many E-infinity ring spectra turn out to be `finitely generated' in the sense that there is finite CW spectrum and a map from the free E-infinity ring spectrum generated by it inducing an epimorphism in mod 2 homology. This turns out to be an interesting condition and I will discuss some examples such as HZ, kO, kU, tmf and tmf_1(3). One long term goal of this work is to produce `ultra-generalised Brown-Gitler spectra' and I will discuss this idea if there is time.