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AY2025

Past Seminars

  • 2025.8.8（Fri）

    Algebra Seminar (13:45--17:00 【Venue: Science Complex A 202】)

    (1) 13:45--15:15
    Speaker：Christopher Frei（TU Graz, Austria）
    Title：Asymptotics for solubility of unit equations over real quadratic fields
    Abstract：
    For a real quadratic field K and positive integer r, we prove an asymptotic formula for the number of rational integers of bounded absolute value that can be written as a sum of r units of the ring of integers of K. This is joint work with M. Widmer and V. Ziegler and answers partially a question posed by M. Jarden and W. Narkiewicz.

    (2) 15:30--17:00
    Speaker：Bruno Chiarellotto（University of Padova, Italy）
    Title：The life of Alexander Grothendieck
    Abstract：
    In the 20th century we speak about the mathematics before and after Alexander Grothendieck. Starting from his interesting life we will try to introduce his mathematics.
    Algebra Seminar


before 2013 (to the old website)

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