| Friday 9 May 2025 | |
| Events for day: Tuesday 14 June 2022 |
| 14:00 - 15:00 Weekly Seminar HEPCo Group Quantum designs and Mutually Unbiased Measurements School PHYSICS Date and time Tuesday, 14th of June 2022 (24th of Khordad, 1401), 2:00 pm (Tehran zone) Link https://us02web.zoom.us/j/83538126663?pwd=VTNQWVpOdDZ1ajAvbVI1WklKODZGUT09 Meeting ID: 835 3812 6663 Passcode: 785277 Abstract Two orthonormal bases of a Hilbert space are said to be mutually unbiased bases (MUB) if the transition probabilities from each state of the first basis to each state of the second basis are the same, irrespective of which pair of states is chosen. A complete set of MUBs is an example of a rich combinatorial ... 16:30 - 18:00 Number Theory Webinar On BRZ Exact Sequence for Finite Galois Extensions of Number Fields School MATHEMATICS In this talk, I will shortly explain how to use some cohomological results of Brumer-Rosen and Zantema to obtain a four-term exact sequence, called ``BRZ'' standing for these authors, which reveals some information about strongly ambiguous ideal classes (coinciding with relative Polya group) of a finite Galois extension of number fields. As an application of the BRZ, I will reprove some well known results in the literature. Then, as a minor modification on relative Polya group for a finite extension of number fields, I will introduce the notion of ``relative Ostrowski quotient'' and give some new approaches of the BRZ exact sequence. The m ... |