Málstofa í stærðfræði Fyrirlesari: Alessandra Cagnazzo Titill: Anomalous dimension in 2d non-linear sigma models. Staðsetning: TG-227, (tæknistofan, annarri hæð í Tæknigarði) Tími: Föstudagur 20. maí kl. 13:20. Ágrip: 2d non-linear sigma models are widely used in high and low energy physics. In my talk I will present how to compute the one-loop anomalous dimension for […]

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Málstofa í stærðfræði Fyrirlesari: Eggert Briem Titill: Real Banach algebras and norms on real spaces. Staðsetning: V-157, VRII. Tími: Föstudagur 8. apríl kl. 13:20. Ágrip: A commutative complex unital Banach algebra can be represented as a space of continuous functions on a compact Hausdorff space via the Gelfand transform. However, in general it is not

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Málstofa í stærðfræði Fyrirlesari: Jakob Björnberg Titill: Random permutations and quantum Heisenberg models Staðsetning: V-157, VRII. Tími: Föstudagur 1. apríl kl. 13:20. Ágrip: The interchange process (or random-transposition random walk) is a model for random permutations which is closely related to a model from quantum statistical physics (the ferromagnetic Heisenberg model). In fact, certain ‘cycle-weighted’

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Málstofa í stærðfræði Fyrirlesari: François David Titill: Planar maps, circle patterns and 2D gravity Staðsetning: V-157, VRII. Tími: Föstudagur 11. mars kl. 13:20. Ágrip: I present a model of random planar triangulations (planar maps) based on circle patterns and discuss its properties. It exemplifies the relations between discrete random geometries in the plane, conformally invariant

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Málstofa í stærðfræði Fyrirlesari: Matin Mojaza Titill: Soft dilatons: In gravity and from conformal field theory Staðsetning: V-148, VRII. Tími: Föstudagur 19. febrúar kl. 11:00. Ágrip: In this talk I will discuss the soft factorizing properties of two seemingly different particles, which are in the literature both referred to as dilatons; i.e. the dilaton in

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Benedikt Steinar Magnússon (12/02/16)

Math Colloquium Speaker: Benedikt Steinar Magnússon Title: Pluripotential theory in several complex variables explained by the Dirichlet problem in the plane Location: V-157, VRII. Time: Friday, February 12 at 13:20. Abstract: The goal is to give a brief introduction to pluripotential theory in several complex variables using the Dirichlet problem in the plane as a

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Málstofa í stærðfræði Fyrirlesari: Anders Claesson Titill: Interval orders via combinatorial species and ballot matrices Staðsetning: V-157, VRII. Tími: Föstudagur 5. febrúar kl. 13:20. Ágrip: We give a brief introduction to (some aspects of) combinatorial species. Using this framework we introduce ballot matrices and present a subset of them that is in bijection with labeled

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Málstofa í stærðfræði – BS verkefni Fyrirlesari: Jón Áskell Þorbjarnarson. Titill: Dreififöll og grunnlausnir á hlutafleiðujöfnum Staðsetning: V02-157 , VRII Tími: Föstudagur 29. janúar, klukkan 15:00-16:00. Ágrip: Við fjöllum um dreififöll, sem eru alhæfingar á heildanlegum föllum á Rn. Við skilgreinum þau sem samfelld línuleg felli á rúmi þjálra falla með þjappaða stoð. Dreififöll hafa

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