Matematisk institutt

Fellesseminar på Matematisk institutt

Seminarer av interesse for alle ansatte på instituttet


Seminarene holdes på onsdager, 1-2 gang i måneder, se kalenderen nedenfor. 

Ansvarlig for seminaret for semester V22 er: Irina Markina (se nedenfor for kontaktinformasjon).


26. jan 2022 14:15-15:00Delta Christopher Fraser (Oxford)Contact tracing for COVID and other infections: practical and mathematical considerations, and the design of contact tracing apps.
23. feb 202214:15-15:00DeltaStine Fiksdal og Espen Rostrup

Knut Børve

Hvorfor innovasjon?

Orientering om byggeprosessen, kjemi-labber i 4. etasje

09. mar 202214:15-15:00DeltaKonrad Tywoniuk, IFTFlow and turbulence in the quark-gluon plasma
23. mar 202212:00-13:00Delta Abelprisen Live sending of the Announcement of this year Abel prize winner. Please note the unusual time.
30. mar 202214:15-15:00DeltaAnna Oleynik og Ahmet Pala (UiB)Mathematicians in the Barent Sea
20. apr 202214:15-15:00DeltaMette AndresenSpin-off learning about epidemics from modeling with differential equations
01. juni 2022


DeltaErlend Alme Mundal The One Ocean expedition


26. januar

Professor Christophe Fraser
Professor of Pathogen DynamicsNuffield Department of Medicine | University of OxfordBig Data Institute | Li Ka Shing Centre for Health Information and Discovery
Title: Contact tracing for COVID and other infections: practical and mathematical considerations, and the design of contact tracing apps.

Abstract: Contact tracing is a key intervention to help control the spread of infections. Mathematical models are used to design and evaluate interventions, in isolation and as packages. It is a mathematically challenging to represent contact tracing in tractable mathematical models: it is a process whereby individuals recall past contacts that occurred on their contact network, which violates assumptions of most Markovian epidemic models. Most insights are therefore gained from simulations, though approximations provide useful qualitative insights.

I will present work based on past epidemics, and how this work led us to propose contact tracing apps for COVID. I will then describe the design and evaluation of the NHS COVID-19 app, and contact tracing apps more generally. I will finish with some reflections on the future of such interventions.

 23. februar

Stine Fiksdal og Espen Rostrup, VIS innovasjon
Tittel: Hvorfor innovasjon? Hvordan kan Matematisk institutt dra nytte av innovasjon og kommersialisering?
Abstract: Espen Rostrup og Stine Fiksdal vil fortelle om VIS – Vestlandets Innovasjonsselskap, eid av blant annet UiB.  I tillegg til å fortelle hva som er deres oppdrag og mandat, ønsker de å bli kjent med oss – og diskutere hvilke muligheter som kan finnes i våre miljøer på matematisk institutt.

Title: Why innovate? How can the Department of Mathematics benefit from innovation and commercialization?
Abstract Espen Rostrup and Stine Fiksdal will talk about VIS - Vestlandets Innovasjonsselskap, owned by, among others, UiB. In addition to telling what their mission and mandate is, they want to get to know us - and discuss what opportunities can be found in our environments at the Department of Mathematics.


Knut Børve
Instituttleder, Kjemisk institutt

Orientering i forbindelse med byggeprosjektet for de nye kjemi laboratiorier i 4. etasje (tidligere NORCE arealer).


 9. mars

Forsker Konrad Tywonkuk
Institutt for fysikk og teknologi, UiB

Title: Flow and turbulence in the quark-gluon plasma

Abstract: High-energy collisions of heavy atomic nuclei in the LHC accelerator create droplets of extremely hot and dense nuclear matter, the quark-gluon plasma. In such conditions, the nuclear degrees of freedom are no longer relevant and their fundamental constituents, namely quarks and gluons, are the main actors. This short-lived exotic state of matter is unique in many ways; mainly because it recreates conditions that were prevalent in the early Universe but also because it is the only setting where we can study the appearance of collective effects and many-body interactions among fundamental constituents of matter. Strikingly, the main feature of the quark-gluon plasma is that it behaves very much like a perfect fluid, generating hydrodynamic flow. This medium is also opaque to penetrating probes, such as very energetic particles. In this talk I will review these two main classes of signatures and describe why the quark-gluon plasma still poses fundamental challenges for contemporary theoretical physics.

Konrad Tywoniuk is leading the research group for "Theoretical Atomic, Nuclear and Particle Physics" at the Department of Physics and Technology at UiB. He completed his PhD in 2008 at the University of Oslo and he currently holds a TMS starting grant from the Trond Mohn Foundation. https://www.uib.no/en/persons/Konrad.Tywoniuk


 23. mars

Forsker Anna Oleynik og PhD student Ahmet Pala

Title: Mathematicians in the Barents Sea

Abstract: Between 10th and 21th of November 2021, Anna Oleynik and Ahmet Palajoined a research survey to the Barents Sea.The survey was  part of the big project, CRIMAC, which aims to improveand automate the interpretation of marine acoustics data.In this seminar, we will talk about the project objectives and thepurpose of the survey, as well as our survey experienceincluding data collection and labeling, sea sickness, and fish labcleaning.

Link to CRIMAC, https://www.hi.no/en/hi/forskning/projects/crimac
CRIMAC - Institute of MarineResearch: In addition to the main goal of more sustainable fishing and improvedfisheries management, a general understanding of "acoustic dialects"could contribute to improved management in other uses of the ocean andcoastal areas, such as within fish farming and energy production.www.hi.no

Forsker Anna Oleynik og phd-kandidat Ahmet Pala foran forskningsskipet Sars

20. april

Mette Andresen, Cand.Scient. Ph.d. Associate Professor, Department of Mathematics, UiB

Title: Spin-off learning about epidemics from modeling with differential equations

Abstract: In this talk, I will present a case study of studentslearning when modeling epidemics with differential equation systems.The study introduces two terms, novel (in this context) in the fieldof mathematics education:  spin-off learning and direction ofmodeling. Spin-off learning is introduced as a process intertwinedwith learning mathematics and the study examines the conditions forspin-off learning to occur when the students are modeling epidemics.The direction of modeling is introduced with two options, namelyexpressive and explorative. In the study, the learning of mathematicsis conceptualized in terms of emergent modeling and models which aredeveloped by the Dutch school Realistic Mathematics Education (RME).Learning mathematics is therefore identified by RME’s progressive,horizontal and vertical mathematizing. By textual analysis signs ofspin-off learning are linked with the mathematizing.  Furthermore, theanalysis links signs of spin-off learning in data with the directionof modeling. As a result, the stratification in accordance with the emergentmodeling and models in RME of students’ mathematizing activities, andthe introduction of the notion of direction served to pinpoint avariety of conditions for spin-off learning to occur, internal to themodeling processes. In addition, the results showed a huge potentialin mathematical modeling for spin-off learning which can be realizedand utilized at a societal level for preparation against new crises.


01. juni

Erlend Alme Mundal, Master student, Department of Mathematics, UiB

Title: The One Ocean Expedition

Abstract: The One Ocean Expedition is a circumnavigation of the globe with the sailing ship Statsraad Lehmkuhl. The aim of the expedition is to share knowledge about a sustainable ocean and collect data continously throughout the voyage. 
From Arendal to Las Palmas and again from Cuba to New York, Erlend Mundal was one out of two research assistants on board Statsraad Lehmkuhl. In the seminar I will talk about what data was collected, challenges on doing so on an old sailing vessel, and the daily life on board. 

Link to One Ocean Expedition website: https://oneoceanexpedition.com/

Erlend is 27 yeas master student, writing the master thesis under the supervisor J. Berntsen. The master thesis concerns fjord oceanography, by applying the Bergen Ocean Model.