|Tuesday 24 April 2018|
|Events for day: Wednesday 10 January 2018|
ISFAHAN BRANCH OF MATHEMATICS
January 10, 2018 (20 th Dey 1396) at 10:00-11:00.
University of Isfahan, Department of Statistics, Seminar Room
10:00 - 12:00 Short Course
Model Theory, p-adic Integration, and Applications to Algebra and Number Theory
This course is concerned with model-theoretic results for local fields and finite fields, and p-adic and motivic integration. The main results concern analytic properties of Euler products and applications to various zeta functions and Dirichlet series in algebra and number theory. ...
14:00 - 15:30 Weekly Seminar
Long-term simulation of MHD jet launching from an orbiting star-disk system
Astrophysical jets emerge from magnetized accretion disk systems. It is now commonly accepted that magneto-hydrodynamic (MHD) processes are essential for the launching, acceleration and collimation of the outflows and jets from accretion disks. I present the results of fully 3D magnetohydrodynamic jet launching simulations of a jet source orbiting in a binary system. The simulations consider a time-dependent gravitational potential of the binary, thus all tidal forces of the orbital motion that are experienced in the non-inertial frame in the jet-launching primary. The simulations run over a substantial fraction of the binary orbital period. ...
15:30 - 17:00 Geometry and Topology Weekly Seminar
Arithmetic Structures in the Spectral Action of Bianchi IX Gravity Models
In this talk, I will give a review of my recent joint works with Wentao Fan and Matilde Marcolli on a rationality phenomena and appearance of periods and motives in the heat kernel expansion of the Dirac-Laplacian of Bianchi IX gravity models with SU(2) symmetries. In the case of Bianchi IX gravitational instantons, which, in a succession of works by physicists and mathematicians, are characterized in terms of theta functions with characteristics, the terms in the expansion give rise to modular forms of weight 2, which we write explicitly in terms of Eisenstein series and the modular discriminant. ...
15:30 - 16:30 Weekly Seminar
Large Anisotropies in the Little Bang
PARTICLES AND ACCELERATORS
The Large Hadron Collider at CERN carries out nucleus-nucleus collisions and proton-nucleus collisions at unprecedented energies. I review some of the key observations in these experiments, and I explain why they are interesting from a theoretical point of view. I discuss in more detail the anisotropies in particle distributions: these anisotropies originate from quantum fluctuations in the projectiles, followed by expansion into the vacuum, much in the same way as the anisotropies of the cosmic microwave background of the Universe, thus drawing an interesting parallel between high-energy physics and cosmology.
Larak Semina ...
16:30 - 18:00 Physics Colloquium
Progress report of recent achievements on optical brain imaging of neurophotonics group
Farmanieh building, lecture room C ...