Activities This Week

I am going to describe old and new results related to Inner, Outer and Ambient Lipschitz geometry of germs of Real semi-algebraic and definable surfaces.  The subject is closely related to non-archimedean geometry and Knot Theory.   No preliminary knowledge in Lipschitz Geometry is required.

נדבר על הילוכים מקריים על חבורות ונעבוד עם משפחה מאוד רחבה ומגניבה של חבורות שכדאי להכיר אותה בכל מקרה.

The use of the Frobenius map to understand singularities in positive characteristics has been a crucial and important tool in modern algebraic geometry. In addition, it allows us to develop “characteristic p” analogous to several technique over complex varieties that use differetial forms and L^2 analysis. In this talk we focus on the concept of the F-pure threshold, show how we can compute it in several cases, and how we can use it to bound the log canonical threshold of complex polynomials. This talk is partially based upon arXiv:2606.04014.

link to article

I will talk a bit about my father, the people who helped him mathematically here and elsewhere, and i will describe some open problems in combinatorics and number theory that he left behind.