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Photo of Prof Andreas Langer

Prof Andreas Langer

Professor

Email:

Telephone: 01392 725278

Extension: (Streatham) 5278

Research Interests

  • Arithmetic geometry, in particular:
  • Arithmetic conjectures on algebraic cycles in connection with p-adic Hodge-theory,
  • Crystalline cohomology over a non-perfect base
  •  Integral p-adic Hodge- theory

Courses taught in Exeter in 2019-2020 Algebraic number theory,  Algebra

Recent publications:  A.Langer, T Zink: Grothendieck-Messing deformation theory for varieties of K3-type , Tunisian Journal of Math, Vol 1 no4, 2019, pp 455-516

A.Langer: p-adic deformation of motivic Chow groups , Documenta Math. 23 , 2018, 1863-1894

O.Gregory, A.Langer: Overconvergent de Rham-Witt cohomology for semistable varieties,available and to appear in: Muenster Mathematical Journal

O.Gregory, A.Langer: Higher Displays arising from filtered de Rham-Witt complexes,available on arxiv, to appear in the Proceddings to "Regulators IV" , Paris 2016

A.Langer and T. Zink: A Comparison of logarithmic overconvergent de Rham-Witt and logarithmic crystalline cohomology for projective smooth varieties with normal crossing divisor.Padova Math.Journal 2017

A.Langer, T Zink,, Comparison between overconvergent de Rham-Witt and crystalline cohomology for projective smooth varieties, Math. Nachrichten 288, No. 11-12, (2015) 1388-1393

O.Gregory, A.Langer: Hodge-Witt decomposition of relative crystalline cohomology, preprint 2020.arxiv             

Grants:  EPSRC Standard Grant Project No 111770R , Title: Integral p-adic Hodge-theory and applications to p.adic deformation theory.  1/2020-12/2022

Research assistant funded by the grant: Dr Oliver Gregory. Email: O.B.Gregory@exeter.ac.uk