Previous events - Page 9

Doctoral candidate Stephane Poulain at the Department of Mathematics will be defending the thesis Capillarity, Elastohydrodynamic, and Fluid-Structure Interactions at Small Scales for the degree of Philosophiae Doctor.

Are you interested in commercialising your research? This intensive 5-day course will provide you with the knowledge and skills to start an R&D company, see your science deployed in the real world and maybe even get rich in the process.

Hylleraas seminar, hosted in Oslo

Doctoral candidate Emil Herman Frøen at the Department of Chemistry, Faculty of Mathematics and Natural Sciences, is defending the thesis "The synthesis, crystal structure and properties of bichalcogenides" for the degree of Philosophiae Doctor.

Even Simonsen Håland will defend his thesis "A search for heavy neutral gauge bosons and dark-sector particles with the ATLAS detector" for the degree of Philosophiae Doctor at the University of Oslo, Faculty of Mathematics and Natural Sciences.

Welcome to our GEOHYD Lunch Seminar Friday 12th of April @ 12:15 in Aud. 1, Geology building or via videolink using Zoom. The seminar is held by Erik Martin Lund (UiO).

The theory of flexible plates can be applied to models of floating solar panels. When wet, the structure vibrates with lower frequencies than when in vacuo.  Our study is concerned with thin rectangular porous plates with free edge conditions in three dimensions exposed to incoming waves. We develop a complete hydrodynamical theory of the wave-flexible-structure interaction including the coupled radiation-diffraction problem. The formulation leads to a set of integral equations for the potentials on the wetted side of the plate. The Green function in three dimensions is implemented along the floating geometry. We use the beam method for the displacement of the rectangular free plate. A variational equation is minimized for the solutions of the interaction problem

Jane Luu, Adjunct Professor at Centre for Planetary Habitability (PHAB) and Institute of Theoretical Astrophysics, University of Oslo.

Full focus on writing! Keywords for the evening: Artificial Intelligence, Shut up & write!, writing help, avoid plagiarism and fight procrastination!

Note the non-standard start time!

 
Abstract: We consider mirror pairs of Calabi-Yau hypersurfaces X and X’ in toric varieties associated to dual reflexive polytopes. We will give a proof through tropical geometry that the Hodge numbers of X and X’ are mirror symmetric. The proof goes by considering tropical homology, and works over the ring of integer numbers. In particular, we can use our spectral sequence with Kris Shaw to explore the connections between the topology of the real part of X and cohomological operations on X’.

This is based on joint work with Diego Matessi. 

Doctoral candidate Viktor Balch Barth at the Department of Mathematics will be defending the thesis Endomorphisms of ℙ¹ and 𝔸ⁿ. Motivic homotopy classes and open images for the degree of Philosophiae Doctor.

Join us for the first NoRMAS meeting aimed at fostering collaboration and advancing research in the field of astronomy at long wavelengths, i.e infrared, (sub)millimeter and radio. 

Vi inviterer til åpning av utstillingen Abels bevis: En likning, en løsning og en motsigelse med høy tetthet av entusiastiske matematikere og likningsløsning over hele storskjermen i foajeen!

Welcome to our weekly lunch seminar held in the dScience lounge, with PhD Candidate Hannes Kneiding.

In situ and in operando electron microscopy are powerful techniques that allow scientists to observe the behavior of matter under real-world conditions.

The Nordic Sedimentary Research Group Annual General Meeting 2024 will be held 11th and 12th of April in Bergen. This year's annual meeting is hosted by University of Bergen, and the meeting is also possible to follow online.

Florian Niedermann, NORDITA

_{Weekly Theory Seminar.}

Aker Scholarship er et stipend for deg som ønsker å ta en mastergrad eller doktorgrad ved et av verdens ledende universiteter. Stipendet ønsker søkere fra alle fagfelt.

Velkommen til GeoOnsdag. Denne gangen får vi foredrag fra førsteamanuensis Sebastian Westermann, Institutt for geofag, UiO. 

C*-algebra seminar by Sergey Neshveyev.

Structural equation models are simultaneous equation regression models, whose variables are latent, and measured via a confirmatory factor model (that is, with measurement error and repeated measurements). When the functional form of the simultaneous equation system is unknown, it has previously been observed in simulations that factor scores inputted into non-parametric regression methods approximate the true functional form. Factor scores estimate the latent variables (per person), and several types exist. We provide a theoretical (though population-based) analysis of this procedure, and provide assumptions under which it is theoretically justified in using Bartlett factor scores, which are simple linear transformations of the data. In simulations, we compare this suggestion to an already available though understudied non-linear and computationally heavy procedure, and observe that the simple Bartlett approach appears to work better.

Markus Fleten Kreutzer, Jonas Timmann Mjaaland and Halvor Tyseng: 

Qualitative analysis is a cornerstone of social science research, used in fields as diverse as education research, sociology, history, and business. Traditional qualitative analysis, however, is time consuming, labor intensive, and difficult to both scale and replicate. To tackle these issues, we have devised a fast, replicable, and scalable technique for deductive, qualitative research on text-data, by utilizing novel advances in machine learning and artificial intelligence.