Tidligere arrangementer - Side 99
Monica Musio (University of Cagliari) will give a 30 min seminar in the lunch area, 8th floor N.H. Abel's House at 14:15 September 29th.
Shinji Mukohyama, Yukawa Institute for Theoretical Physics, Kyoto University
Antoine Julien, NTNU, will give a talk with title: Links between cut-and-project tilings and Diophantine approximation
Abstract: Cut-and-project tilings are obtained by cutting a slice of a higher dimensional lattice and projecting it on a lower dimensional space. The result is a point set which is regular enough (since it originates from a lattice), but is not periodic, provided the direction of the slice is irrational in a suitable sense. In one dimension, typical examples of this construction are Sturmian subshifts. It is known that some of their dynamical properties depend on the arithmetic properties of a certain parameter. In this talk, I will recall some known results by Hedlund and Morse on Sturmian subshifts. Then, I will describe how, even in higher dimensions, the repetition properties of some cut-and-project sets can be linked to problems of simultaneous Diophantine approximation. This is joint work with A. Haynes, H. Koivusalo and J. Walton.
Dr. Terry Onsager, National Oceanic and Atmospheric Administration, USA/Space Weather Prediction Center, USA.
Kristian Ranestad, UiO, gives the Seminar in Algebra and Algebraic Geometry
EPW cubes
Friday seminar by Anna B. Neuheimer, Department of Oceanography, University of Hawai’i at Mānoa, USA
Luc Van Der Voort, Professor, ITA
Felipe Rincon, UiO, gives the Seminar in Algebra and Algebraic Geometry
Positroids and the totally nonnegative Grassmannian
Audun Mathias ?ygard (Master student, Dept. of Mathematics, UiO) will give a seminar in the lunch area, 8th floor N.H. Abel's House at 14:15 September 15th: Measuring similarity of classified advertisements using images and text, with applications to recommendation and search at finn.no
Preserving traditions is important, not least barely born traditions, such as the Minglem?te, meant to be at the end of every month containing an ‘r’ (plus perhaps some more). In any case, we’re having another, next Friday Sepember 11 in the lobby. There will be cake and coffee, and there will be (only two this time, to give a chance of having some actual mingling going on) presentations. Notably a summary of the two SFF (Center of Excellence) proposals that the ITA will be sending in this fall: On the “Oslo Cosmology Center" and on “The Rosseland Centre for Solar Physics” and what they could mean for the institute.
All are invited, we need critical acclaim and perhaps some constructive criticism as well.
Felipe Rincon, UiO, gives the Seminar in Algebra and Algebraic Geometry
Tropical Ideals
Guest Lecture with Sonia Hernandez-Diaz from Harvard School of Public Health on the topic of "Application of causal inference approaches to define confounding and selection biases in medication safety in pregnancy studies"
Max Gronke, PhD student, ITA
Paul Krühner (TU Wien) holds a lecture with the title: Affine processes with compact state space and counter-examples for polynomial processes.
Nicolai Stammeier (Münster) will give a talk with title "Aiming for accuracy - boundary quotients of right LCM semigroups revisited "
Abstract: I will recall the notions of foundation sets and the boundary quotient for right LCM semigroups. This C*-algebra is obtained by modding out products of defect projections over foundation sets in the full semigroup C*-algebra of the right LCM semigroup. Observing that this is in stark contrast to the standard presentations of C*-algebras in the spirit of Cuntz algebras, where a summation relation gets used, we will discuss the possibility of replacing the product relation by a summation relation and arrive at the accurate refinement property. This feature turns out to be quite common among right LCM semigroups. In fact, we are yet to see an example of a right LCM semigroup that has an insufficient supply of accurate foundation sets. Time permitting, we will leave the realm of right LCM semigroups for the sake of finding semigroups without the accurate refinement property.
James Armitage, University of Toronto, Canada.
Karen Kidd, Canadian Rivers Institute & Biology Department, University of New Brunswick, Saint John, New Brunswick, Canada
Valeria Vitelli (Dept. of Biostatistics, UiO) will give a seminar in room 801 (B81), 8th floor N.H. Abels House at 14:15 September 1st: Probabilistic preference learning with the Mallows rank model
Simon Johnston, Head of Astrophysics at the Australian Telescope National Facility
Felipe Rincon, UiO, gives the Seminar in Algebra and Algebraic Geometry
An introduction to tropical geometry
The seminar will be at the same time and location as during the spring.
Mitochondrial redox regulation in heart failure.
Andrey Pilipenko (Ukrainian National Academy of Sciences) gives a lecture with the title: Limits of Markov processes with irregular behavior at a fixed point.
Disturbed myocardial energetics as cause of diastolic dysfunction in hypertrophic cardiomyopathy.
It is a great pleasure to invite you to attend a seminar by Professor Jean Rossier from INSERM, France. Dr. Rossier has made several major discoveries in neuropharmacology including his work on neuropeptides with Bloom, Guillemin, and Udenfriend. He discovered multiple opio?d peptides delineating several distinct neuronal systems involved in pain and reward. Turning his interests on GABAA receptors, he made the seminal observation that several inverse agonists facilitate performance in learning and memory tasks. This has led to the present development by the pharmaceutical industry of specific inverse agonists which are candidates for promnesic drugs. His most widely technical contribution in neuroscience is the invention of single cell RT-PCR after patch-clamp. This unexpected marriage of molecular biology and physiology led to several discoveries. With single cell RT-PCR, he has deciphered the molecular organization of various synaptic receptors. He is now using RT-PCR and a multidisciplinary approach combining electrophysiology, pharmacology and imaging to characterize the diversity of neocortical interneurons and their roles in local blood flow control.