Visiting addressUllevål Stadion Sognsveien 77B
In this talk all spaces and spectra will be localised at 2. Many E-infinity ring spectra turn out to be `finitely generated' in the sense that there is finite CW spectrum and a map from the free E-infinity ring spectrum generated by it inducing an epimorphism in mod 2 homology. This turns out to be an interesting condition and I will discuss some examples such as HZ, kO, kU, tmf and tmf_1(3). One long term goal of this work is to produce `ultra-generalised Brown-Gitler spectra' and I will discuss this idea if there is time.
Aliaksandr Hubin (Department of Mathematics, University of Oslo) will give a seminar in the lunch area, 8th floor Niels Henrik Abels hus at 14:15.
Achref Bachouch (Universitetet i Oslo) gives a lecture with the title: Numerical probabilistic method for Semi-linear Stochastic PDEs using Backward Doubly SDEs.
Bioprocessing of marine and agricultural by-products
M.Sc. Johanna Ridder ved Matematisk institutt vil forsvare sin avhandling for graden ph.d.:
Finite Difference Methods for Nonlinear Evolution Equations: Convergence Proofs and Applications to Liquid Crystals
M.Sc. Johanna Ridder ved Matematisk institutt avholder prøveforelesning over oppgitt emne: "Theory and numerics of conservation laws with nonlocal flux functions".
Given a knot K in the 3-sphere, we use Heegaard Floer correction terms to give lower bounds on the first Betti number of (orientable and non-orientable) surfaces in the 4-ball with boundary K. An amusing feature of the non-orientable bound is its superadditivity with respect to connected sums. This is joint work with Marco Marengon. If time permits, I will discuss relations with deformations of singularities of curves (joint work with József Bodnár and Daniele Celoria).
Nacira Agram (University of Oslo) gives a lecture with the title: A Hida-Malliavin white noise calculus approach to optimal control
Roxana Dumitrescu (King’s College, London) gives a lecture with the title: Game options in an imperfect market with default
Perfeksjon fra bønne til kopp
Hvordan jobber Tim Wendelboe i sin jakt på den perfekte kopp med kaffe?
Tim er både kaffebonde, kaffebrenner og barista og vil gi deg et lite innblikk i alt arbeidet som ligger bak hver kopp kaffe som serveres i hans kaffebar på Grünerløkka.
Nicola Lunardon (Department of Economics, Management and Statistics, University of Milano-Bicocca) will give a seminar in the lunch area, 8th floor Niels Henrik Abels hus at 14:15.
Paul Krühner (TU Wien) gives a lecture with the title: On the Brownian limit order book dynamics
Jocelyne Bion-Nadal (Ecole Polytechnique) gives a lecture with the title: Feynman Kac formula for differential operators with path-dependent coefficients
Florentina Paraschiv (Norges teknisk-naturvitenskapelige universitet) gives a lecture with the title: Estimation and Application of Fully Parametric Multifactor Quantile Regression with Dynamic Coefficients
M.Sc. Miroslav Kuchta ved Matematisk institutt vil forsvare sin avhandling for graden ph.d.:
Preconditioners for singular problems and coupled problems with domains of different dimensionality
M.Sc. Miroslav Kuchta ved Matematisk institutt avholder prøveforelesning over oppgitt emne: "Modeling and observation of aeration and droplets due to breaking waves".
In the 80's Bökstedt introduced THH(A), the Topological Hochschild homology of a ring A, and a trace map from algebraic K-theory of A to THH(A). This trace map, along with the circle action on THH, have since been used extensively to make calculations of algebraic K-theory. When the ring A has an anti-involution Hesselholt and Madsen have promoted the spectrum K(A) to a genuine Z/2-spectrum whose fixed points is the K-theory of Hermitian forms over A. They also introduced Real topological Hochschild homology THR(A), which is a genuine equivariant refinement of THH, and Dotto constructed an equivariant refinement of Bökstedt's trace map. I will report on recent joint work with Dotto, Patchkoria and Reeh on models for the spectrum THR(A) and calculations of its RO(Z/2)-graded homotopy groups.
Adam Sørensen (Oslo) will give a talk with title: Overlapping qubits
Abstract: I will discuss the paper "Overlapping Qubits" by Chao, Reichardt, Sutherland, and Vidick (arXiv:1701.01062 - category: Quantum Physics!). Qubits are the bits of quantum computing. In the paper the authors take the point of view that a qubit mathematically is described by a pair of anticommuting reflections on a finite dimensional Hilbert space. Two qubits are independent if their defining operators commute. The central point of the paper is that when performing observations we should not expect two qubits to be exactly independent, rather we should expect them to be almost independent, i.e. the norms of the commutators should be small. This naturally leads to questions about almost commuting matrices, which is why I care. I will attempt to explain how questions of almost commuting matrices come up, and how the physicists answer them.
Large Eddy Simulation of the interaction of water waves with turbulent air flow
Youssef Ouknine (Cadi Ayyad University, Marrakesh, Morocco) gives a lecture with the title: Optimal stopping with f-expectations: the irregular case.
Khalifa Essebaly (Cadi Ayyad University, Marrakesh, Morocco) gives a lecture with the title: Optimal rates for parameter estimation of stationary Gaussian processes.
Lan Zhang (University of Illinois at Chicago, Department of Finance) will give a seminar in the lunch area, 8th floor Niels Henrik Abels hus at 14:15.