Friday 21 January, 16:00, Zoom link This talk is based on joint works with Bernard Helffer. Let $[0,\infty[ \ni t \to S(t)$ be a semigroup of bounded operators on a…Read More >
spring 2022
The spectra of some number-theoretic matrices
Friday 25 February, 16:00 – 17:00, Slingo Theatre I will discuss the spectral theory of a family of infinite number-theoretic matrices, whose (n,m)’th entry involves the least common multple of…Read More >
Isosupremic vectorial minimisation problems in $L^\infty$ with general nonlinear constraints
Friday 4 March, 12:00 – 13:00, M113 In this talk we discuss minimisation problems in $L^\infty$ for general quasiconvex first order functionals, where the class of admissible mappings is constrained…Read More >
Symmetries of simple operator algebras
Friday 11 March 2022, 16:00 – 17:00, M108 In this talk I will start with an elementary introduction of group actions on the Hyperfinite II_1 factor and their classification results…Read More >
Malliavin’s problem for Beurling generalized primes
Tuesday, April 12 2022, 10:00 – 11:00, M113 One of the central topics in the theory of Beurling generalized primes is the relationship between the counting function of the generalized…Read More >
Pólya’s conjecture for the disk: a computer-assisted proof
Friday April 22 2022, 16:00 – 17:00, M314 (Special Analysis Seminar) The celebrated Pólya’s conjecture (1954) in spectral geometry states that the eigenvalue counting functions of the Dirichlet and Neumann…Read More >