TalksSlides: Generalized symmetries in categories of algebras (following Tall-Wraith, Bergman-Hausknecht,...) Videos: The étale fundamental group for semirings (following Culling) JAMI 2019-2020 conference Riemann-Roch in characteristic one and related topics , Johns Hopkins University, 2019/10/19 The motivic logarithm and its realisations, Differential Geometry Seminar, U Adelaide, August 2012 Lambda-algebraic geometry 1: The categorical package, Frobenius Lifts, Leiden, 2009 Lambda-algebraic geometry 2: The geometry of W and Lambda, Frobenius Lifts, Leiden, 2009 Lambda-algebraic geometry 3: Absolute algebraic geometry I , Frobenius Lifts, Leiden, 2009 Lambda-algebraic geometry 4: Absolute algebraic geometry II , Frobenius Lifts, Leiden, 2009 |