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SUMMARY:Arnab Saha (Indian Institute of Technology (IIT) Gandhinagar)
DTSTART:20200525T123000Z
DTEND:20200525T133000Z
DTSTAMP:20260513T195756Z
UID:CMI/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CMI/7/">$p$-
 adic Hodge theory and delta geometry</a>\nby Arnab Saha (Indian Institute 
 of Technology (IIT) Gandhinagar) as part of CMI seminar series\n\n\nAbstra
 ct\nWe will talk about a new $p$-adic Galois representation that comes fro
 m $\\delta$-geometry. Here\, we construct a new filtered Isocrystal associ
 ated to an abelian scheme that is different from the usual crystalline coh
 omology. In the case of elliptic curves\, depending on a modular parameter
 \, this Isocrystal is also weakly admissible which leads to a new crystall
 ine Galois representation attached to the elliptic curve via the Fontaine 
 functor. This is joint work with Jim Borger. \n\nWe will dedicate the firs
 t half of the talk on giving an overview of $p$-adic Hodge theory and $\\d
 elta$-geometry.\n
LOCATION:https://researchseminars.org/talk/CMI/7/
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