Fyrirlesari: Breki Pálsson (Sorbonne U., Paris) Titil: Investigating Residue Degrees in Number Fields related to Modular Forms and their Connections to Permutation Cycles. 27. október 2023, kl. 11:40 í stofu V-152 í VR-2, athugið breytta staðsetningu. Ágrip: Modular forms are a special type of complex analytic functions that have symmetry properties. They are used in […]
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Fyrirlesari: Ali Khezeli (INRIA, Paris) Titill: On the Existence of Balancing Allocations and Factor Point Processes 20. október, kl. 11:40. Stofa N-130 í Öskju. Ágrip: A balancing allocation between measures and on is a function on that transports to . In the case of stationary random measures or point processes, which always have infinite total
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13. október, 11:40 í N-130. Fyrirlesari: Brigitte Servatius (Worcester Polytechnic Institute) Titill: Random regular graphs and their rigidity properties in the plane. Ágrip: We start with some elementary examples of random regular graphs and an algorithm to generate them. We explain how graph theoretic properties such as regularity, planarity, and transitivity influence planar rigidity and
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October 6, 11:40 Room N-130 Speaker: Ejnar Bjarki Gunnarsson (University of Iceland) Title: The site frequency spectrum of a neutrally evolving tumor Abstract: The site frequency spectrum (SFS) is a popular summary statistic of genomic data, recording the frequencies of mutations within a given population. While the SFS of a constant-sized population undergoing neutral mutations
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October 4, 12:20 Room VRII-258 Speaker: Francesco Coghi (NORDITA) Title: A journey into large deviation theory Abstract: In this talk, I will introduce the basic ideas to study fluctuations and rare events in physical sciences through the lens of large deviation theory. After introducing some examples, I will go through the historical landmarks of the
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September 29, 11:40 Room N-130 Speaker: Alexander Rashkovskii (University of Stavanger, Norway) Title: Pluricomplex Green functions Abstract: The standard notion of Green’s functions for linear differential operators cannot be used directly in multidimensional complex analysis. Instead, several different concepts were introduced by choosing specific fundamental solutions of the (highly non-linear) complex Monge-Ampère equation. I will
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September 22, 11:40 Room N-130 Speaker: Herman Servatius (Worcester Polytechnic Institute) Title: Rigidity and movability of configurations in the projective plane. Abstract: Configurations of points and lines in the plane have a long history. The Theorem of Pappus from the fourth century begins a classical theory that has been advanced by Desargues, Pascal, Cayley, Steinitz,
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Málstofa 12 september, kl. 10:50 (athugið óvenjulega tímasetningu!) Fyrirlesari: Gordon Slade (University of British Columbia)Titill: Self-avoiding walk, spin systems, and renormalisationÁgrip: The subject of critical phenomena in statistical mechanics is a rich source of interesting and difficult mathematical problems that touch oncombinatorics, probability, and mathematical physics. Self-avoiding walks and lattice spin systems provide fundamental examples. This
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Fyrsta málstofa vetrarins verður 8 september, 11:40, í N-130Fyrirlesari: Rögnvaldur Möller (Háskóla Íslands) Titill: Planting, growing and felling trees in group theoryÁgrip: Trees and group actions on trees play an important role in many branches of group theory: Bass-Serre theory is one of the cornerstones of geometric group theory, the automorphism groups of a regular
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Næsta málstofa verður þriðjudaginn 13. júní kl 13:20 í Naustinu, húsi Endurmenntunar. Fyrirlesari er Dana C. Ernst (Northern Arizona University). Titill fyrirlestrarins er Enumerating signed permutations by reversal distance. Ágrip: A signed permutation is a permutation of the numbers 1 through $n$ in which each number is signed. A reversal of a signed permutation is
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