Topology Seminar: Ningchuan Zhang (UPenn)

Krieger 170

Title: Profinite descent for Picard spaces and groups in K(n)-local chromatic homotopy theory Abstract: The study of Picard groups in homotopy theory was initiated by Hopkins-Mahowald-Sadofsky. They gave a general framework to compute Picard groups of the category of $K(n)$-local spectra. In the past decade, significant progress has been made in our understandings of Picard groups […]

Analysis seminar: Simon Marshall (Wisconsin)

Title: The asymptotic behavior of eigenfunctions on symmetric spacesAbstract: Let X be a compact locally symmetric space, and Y a locally symmetric subspace.  Let f be an eigenfunction of the invariant differential operators on X with eigenvalue tending to infinity.  I will present bounds for the period and Fourier coefficients of f along Y, and […]

Number theory seminar: Matthew Sunohara (Toronto)

Krieger 304

Title: On stable transfer operators and functorial transfer kernels Abstract: Langlands introduced stable transfer operators as a fundamental part of his proposal of Beyond Endoscopy. They are intended to be used in comparisons of his proposed refinements of stable trace formulas, in an analogous role to that of endoscopic transfer operators in the theory of […]