Speaker: Lars Martin Sektnan (Chalmers Institute of Technology and University of Gothenburg) Title: Constant scalar curvature Kähler metrics and semistable vector bundles When: Wednesday, November 6, at 10:00 Where: Room 147 in VR-II Abstract: A central question in Kähler geometry is if a Kähler manifold admits a canonical metric, such as a Kähler-Einstein metric or […]
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When: Friday, November 1, at 11:40 Where: Room 156 in VR-II Speaker: Bergur Snorrason (University of Iceland) Title: The Bernstein-Walsh-Siciak theorem Abstract: An important topic in complex analysis is polynomial approximation. We will look at classic results regarding polynomial approximation, culminating in the Bernstein-Walsh-Siciak theorem, which leverages pluripotential theory to relate analytic continuation to polynomial approximations.
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When: Friday, October 25, at 11:40 Where: Room 156 in VR-II Speaker: Bergur Snorrason (University of Iceland) Title: Generalizing Siciak’s product formula Abstract: In pluripotential theory, the Siciak-Zakharyuta extremal functions are well studied. Siciak described how the Siciak-Zakharyuta function associated to a cartesian product relates to the Siciak-Zakharytua functions associated to each of the terms in
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Fyrirlesari: Bergur Snorrason, HÍ Titill: Methods of approximation and their place in pluripotential theory Staðsetning og tími: VR-II 156, föstudaginn 18. oct, kl 11:40 Ágrip: We will discuss several approximation operators and how they can be used to show the regularity of certain extremal functions from pluripotential theory. The tools behind these operators include integral
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Doktorsefni: Bergur Snorrason Heiti ritgerðar: Skorðaðar og vegnar margliðunálganir Dagsetning: 8. nóv – kl. 14:00-16:00, Askja Stofa 132 Andmælendur: Dr. Alexander Rashkovskii, prófessor við Háskólann í Stafangri, Noregi, Dr. Lars Martin Sektnan, dósent við Háskólann í Gautaborg, Svíþjóð Leiðbeinendur: Dr. Benedikt Steinar Magnússon, dósent við Raunvísindadeild Háskóla Íslands, Dr. Ragnar Sigurðsson, prófessor við Raunvísindadeild Háskóla
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Speaker: Alexia Nix, University of Iceland Date: October 18 Time: 15.00 Place: VRII-156 Title: Wilson loops and precision holography Abstract: The main objective of this talk is the study of holography beyond the conformal paradigm. A specific example of this is realized through the study of 1/2-BPS Wilson loops in maximally supersymmetric Yang-Mills theories on
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Hallgrímur Haraldsson og Hildur Gunnarsdóttir, nemendur á þriðja ári í stærðfræði við Raunvísindadeild Háskóla Íslands, hafa hlotið viðurkenningu úr Verðlaunasjóði Sigurðar Helgasonar prófessors fyrir frábæran námsárangur. Heildarupphæð verðlaunanna nemur 11.500 bandaríkjadölum, jafnvirði tæplega 1,6 milljónum króna. https://www.hi.is/frettir/tvo_verdlaunud_fyrir_frabaeran_arangur_i_staerdfraedi
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Speaker: Vyshnav Mohan Date: October 16 Time: 13.00 Place: Oddi-203 Title: Complexity, Bulk Reconstruction, and Semiclassical Black Holes Abstract: Quantum computational complexity is an information-theoretic measure that probes the finer details of the Hilbert space of a quantum system. We will study two of its avatars: Krylov complexity and holographic complexity. We will then show
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Speaker: Matthias Harksen Date: Thursday 10 October 2024 Time: 08:00 GMT Place: Stapi 108 Title: Non-Lorentzian symmetries and black holes Abstract: I will present my PhD research for the past two years which has been focused on considering what happens when we digress away from relativistic symmetries towards non-Lorentzian symmetries specifically in the framework of black
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Doktorsefni: Álfheiður Edda Sigurðardóttir Heiti ritgerðar: Margliðunálganir og fjölmættisfræði Dagsetning: 27. september 2024, 14:00-16:00 í Hátíðarsal Aðalbyggingar Háskóla Íslands Andmælendur: Dr. David Witt Nyström, prófessor við Chalmers Tækniháskóla og Gautaborgarháskóla í Svíþjóð, dr. Barbara Drinovec Drnovšek, prófessor við Háskólann í Ljubljana, Slóveníu Leiðbeinendur: Dr. Benedikt Steinar Magnússon, dósent við Raunvísindadeild Háskóla Íslands, Dr. Ragnar Sigurðsson,
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