Málstofa í stærðfræði

Málstofa: Hermann Þórisson

Áttunda málstofa haustsins verður föstudaginn 28. október ​​​​kl 10:30 í Naustinu, húsi Endurmenntunar.  Fyrirlesari er Hermann Þórisson, Háskóla Íslands.  Titill hans er Forward and backward limits. Abstract: The main limit theorem of (time-homogeneous) Markov chains says that (under minimal conditions) a Markov chain tends to stationarity (equilibrium) as time tends to infinity. In 1938 Wolfgang Doeblin (1915-1940) presented a brilliant method […]

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Málstofa: Anders Karl Claesson II

Sjötta málstofa haustsins verður föstudaginn 21. október ​​​​kl 10:30 í Naustinu, húsi Endurmenntunar. Fyrirlesari er Anders Karl Claeson, Háskóla Íslands. Titill hans er Pattern rewriting systems. (Fyrirlesturinn er óbeint framhald að fyrirlestri í síðustu viku.) Abstract. Linton, Propp, Roby and West (2012) initiated the systematic study of equivalence relations induced by pattern replacement. They considered

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Málstofa: Anders Karl Claesson I

Fimmta málstofa haustsins verður föstudaginn 14. október ​​​​kl 10:30 í Naustinu, húsi Endurmenntunar.  Fyrirlesari er Anders Karl Claeson, Háskóla Íslands. Titill hans er The Goulden-Jackson cluster method.  Anders mun halda áfram með sama efni föstudaginn 21. október. Abstract.  We consider the problem of calculating the number of strings of length n (over a fixed alphabet) that do not contain

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Málstofa: Sigurður Örn Stefánsson

Fjórðja málstofa haustsins verður föstudaginn 7. október ​​​​kl 10:30 í Naustinu, húsi Endurmenntunar.  Fyrirlesari er Sigurður Örn Stefánsson, Háskóla Íslands. Titill hans er Randomly decorated random trees Abstract: Many combinatorial objects may be decomposed in a natural way into an underlying tree whose vertices are identified with structures which we will call decorations. We refer to such objects as decorated trees.

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Málstofa: Sigmundur Guðmundsson

Auka málstofa verður þriðjudaginn 4. október 15:00 í stofu 261 í VRII. Fyrirlesari er Sigmundur Guðmundsson, Háskólanum í Lundi, Svíþjóð. Titill hans er Complex-Valued Harmonic Morphisms and Proper p-Harmonic Functions on Riemannian Symmetric Spaces – The Method of Eigenfamilies Abstract: Complex-valued proper $latex p$-harmonic functions ϕ:(M,g)→C on a Riemannian manifold are solutions to the 2p-th order

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Málstofa: János Ruff

Þriðja málstofa haustsins verður föstudaginn 30. september ​​​​kl 10:00 (athugið óvenjulegan tíma) í Naustinu húsi Endurmenntunar. Fyrirlesari er János Ruff, University of Pécs, Ungverjalandi. Titill hans er Finite Geometry and cardgames Abstract: Finite geometry is a rather new area in the intersection of geometry, algebra and combinatorics. The intuition generally comes from geometry and the

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Málstofa: Atli Fannar Franklín

Fyrsta málstofa haustsins verður föstudaginn 23. september kl 10:30 í Naustinu húsi Endurmenntunar.  Fyrirlesari er Atli Fannar Franklín, Raunvísindastofnun háskólans. Titill hans er Counting score sequences. Abstract: The score sequence of a tournament is the sequence of the out-degrees of its vertices arranged in nondecreasing order. The problem of counting score sequences of a tournament

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Málstofa: Victoria Lynn Martin

Fyrsta málstofa haustsins verður föstudaginn 16. apríl kl 10:30 í Naustinu húsi Endurmenntunar.  Fyrirlesari er Victoria Lynn Martin, Raunvísindastofnun háskólans. Titill hennar er A Selberg zeta function for warped manifolds. Abstract: In this talk I begin by introducing the Selberg zeta function of hyperbolic quotient manifolds (H^3/G, where H^3 is 3-dimensional hyperbolic space and G is a discrete Schottky group) and reviewing a fruitful

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Evgeny Poletsky

Evgeny Poletsky frá Syracuse University er í heimsókn hjá okkur og mun hann halda fyrirlestur í Tvinnmálstofunni mánudaginn 30. maí kl. 11:00 í 227 í Tæknigarði. Titill: (Pluri)potential compactifications Ágrip: Using pluricomplex Green functions we introduce a compactification of a complex manifold M invariant with respect to biholomorphisms similar to the Martin compactification in the

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Marko Slapar

Málstofa í stærðfræði Fyrirlesari: Marko Slapar, Háskólanum í Ljubljana, Slóveníu Titill: Thom conjecture in CP3 Staðsetning: Tg-227 í Tæknigarði. Tímasetning: Fimmtudaginn 7. apríl 2022, kl. 10:30. Ágrip: The result of Kronheimer and Mrowka from 1994 states that complex curves in CP2 are genus minimizers in their homology class. This is known as the Thom conjecture,

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