Previous events - Page 7

Doctoral candidate Elena Mamonova at the Department of Geosciences, Faculty of Mathematics and Natural Sciences, is defending the thesis A thorny path to a habitable world. Studying primordial exoplanet atmospheres with the Young M Dwarf Flare model for the degree of Philosophiae Doctor.

By Prof. Dr. Ravit Helled, Professor and Director of UZH Space and the Department of Astrophysics, University of Zurich.

Title: Factoring clouds into global precipitation change: Toward explained and constrained responses to warming and aerosols

Speaker: Zachary McGraw, University of Vienna

Kari Dalnoki-Veress is a Faculty of Science Research Chair in Experimental Soft Condensed Matter Physics in the Department of Physics and Astronomy at McMaster University and an adjunct professor at the ESPCI in Paris, France. He is an experimental physicist with a passion for soft condensed matter and teaching. Dalnoki-Veress has received the Canadian Association of Physicists Brockhouse Medal, the Rutherford Memorial Medal in Physics from the Royal Society of Canada, the American Physical Society Division of Polymer Physics Dillon Medal and was elected as a Fellow of the American Physical Society in 2011. Dalnoki-Veress has served as Chair of Physics and Astronomy for NSERCs Discovery Grants, an Editor of the European Physical Journal E, Editorial Advisory Board of Macromolecules and ACS Macro Letters, and currently as a Divisional Associate Editor for Physical Review Letters. His research group at McMaster focuses on fundamental experiments in soft and living matter at surfaces and interfaces. Dalnoki-Veress is also CTO of MesoMat Inc. which exploits the world between molecular and macroscopic – the mesoscale – to enable material innovation.

Each spring, near the date of Svein Rosseland's birthday, the Institute of Theoretical Astrophysics invites everyone to a guest lecture as a remembrance for the great astrophysicist Svein Rosseland (1894-1985), founder of our institute.

Doctoral candidate Yizhou Shen at the Department of Chemistry, Faculty of Mathematics and Natural Sciences, is defending the thesis Oxygen Surface Exchange Kinetics: The Role of Charge Transfer Dynamics for the degree of Philosophiae Doctor.

Erland Ørbekk is a Norwegian technology and engineering leader with a strong background in advanced engineering, product development, and future technologies. He has held senior technical and leadership roles within the Nammo group, including positions related to engineering, development, and future technology initiatives. His expertise spans innovation-driven industrial environments, computational engineering, and high-technology product development.

In addition to his industrial leadership experience, Ørbekk has contributed to technical and research-oriented work within computational fluid dynamics and engineering analysis. He is also involved in board and advisory activities connected to advanced manufacturing and technology companies in Norway.

Doctoral candidate Valmir Rodrigo da Silva at the Chemistry Department, Faculty of Mathematics and Natural Sciences, is defending the thesis Synthesis and Characterization of Iron Nickel-based alloys for rare earth-free permanent magnet applications for the degree of Philosophiae Doctor.

Title: How well can we model turbulence and mixing in ocean fronts?

Speaker: Lars Umlauf, Leibniz Institute for Baltic Sea Research

A clear understanding of your competitive advantages and the needs of your end users is essential for turning a promising idea into a compelling market offering. Insight into customer priorities and unmet needs not only strengthens your strategic positioning but also enhances your credibility when engaging potential partners and investors.

Doctoral candidate Xinyi Wang at the Department of Informatics, Faculty of Mathematics and Natural Sciences, is defending the thesis When Quantum Computing Meets Software Testing: Novel Quantum Methods for Testing Real-World Software Systems for the degree of Philosophiae Doctor.

Title: Air quality forecasting with machine learning

Speaker: Erik Mousing, Norwegian Meteorological Institute

By Associate Professor Anja Kohfeldt, Department of Technology Systems (ITS), UiO

In this Open Science Lunch, we look into Diamond Open Access publishing – publishing with neither author nor reader payment – and the movement of journals «flipping» from Toll Access or Gold OA to Diamond. We will also hear about a programme for supporting Diamond OA journals.

A numerical semigroup is said to be Weierstrass if it is the semigroup of pole orders of rational functions that are regular at all but one point of some compact Riemann surface or smooth algebraic curve. Hurwitz asked in 1892 whether all numerical semigroups can occur. Buchweitz in 1980 gave the first examples of Non-Weierstrass semigroups. In this paper we give a new method, using syzygies, to show that certain semigroups are not Weierstrass, including the first one of multiplicity 6 (the lowest possible) and genus 13 (the lowest known). We give many other examples to which the method applies.

Title: Are perennial plants benefiting from warmer winters?

Speaker: Al Kovaleski, University of Wisconsin-Madison

Herman Martens Meyer is a PhD candidate in the Department of Mathematics at the University of Oslo. Prior to starting his PhD, he completed an integrated Master’s degree in Applied Physics and Mathematics at the Norwegian University of Science and Technology (NTNU). For his Master’s thesis, he worked on identifying subsurface turbulence using light reflected from a free surface. His research interests include wave turbulence, breaking waves, and free-surface turbulence.

Welcome to our GeoHyd Lunch Seminar on Friday 24th of April @ 12:15 in Aud. 1 in the Geology Building. The seminar is held by Ludovic Ravanel (University Savoie Mont-Blanc, France).

OBS! please note that the Geology Building now requires an access card, but that you can ring the bell to get in.

Around 1970, Gruson and Raynaud proved that one may render a morphism of finite presentation flat by blowing up an ideal in the target, with rather mild restrictions on the involved schemes. New proofs, entirely different from the one of Gruson and Raynaud, have been found by Fujiwara and Kato and by Guignard. The two proofs are basically the same, both using Temkin's relative Zariski–Riemann spaces, the limits of all interesting blow-ups. These spaces are quasi compact locally ringed spaces whose local rings are close to being valuation rings, so that almost anything is flat, and due to their quasi compactness, one may descend flatness to a genuine blow-up.

Notes for the talk here.

References
Quentin Guignard: A New Proof of Raynaud–Gruson’s Flattening Theorem (arXiv:1801.01188v3)
Kazuhiro Fujiwara and Fumiharu Kato: Rigid Geometry and Applications, in Advanced Studies in Pure Mathematics 45 (2006), Moduli Spaces and Arithmetic Geometry (Kyoto, 2004), pp. 327–386.