Monday 25 May 2026 at 3 pm, as part of the Al@Bicocca seminar cycle, Sandro Mattarei (University of Milano-Bicocca) will hold the following talk
Title: Additive subgroups and inversion in finite fields
Abstract: The inversion map in a finite field plays a role in various cryptographic algorithms, one reason being its “high nonlinearity”. The set of inverses of the nonzero elements of an additive subgroup of a finite field might be expected to be a “highly nonlinear” subset, aside from trivial cases. In this talk I will provide concrete expressions to this expectation, in the form of certain bounds. Some interesting geometric configurations arise as exceptional cases.
Information to attend
The seminar will be held in Room U9-01 (Edificio U9 | Viale dell’Innovazione 10, Milano) and will also be available online by this link.
For more information, visit the website