London-Paris Number Theory Seminar

40th meeting, Paris — 12th–13th November 2026, Université Sorbonne Paris Nord, Villetaneuse Institut Henri Poincaré, Paris

The John Coates London-Paris Number Theory Seminar meets twice per year, once in London in the spring and once in Paris in the fall.

Paris organisers: Giada Grossi, Marc Hindry, Matthew Morrow, Cédric Pépin.

London organisers: George Boxer, Vladimir Dokchitser, Luis García, Steve Lester, Beth Romano.

The topic of this session is "Regulators, L-values and p-adic cohomologies".

Please note: due to current events, the seminar has been moved to the Institut Henri Poincaré (IHP), Paris.

The organisers thank the LAGA (Sorbonne Paris Nord) for sponsoring the seminar and IHP for offering the seminar rooms.

The speakers are:

Schedule

All the talks will take place at the Amphi A of the Villetaneuse campus (marked as 7a on this map) Institut Henri Poincaré, Paris.

Abstracts (PDF)

Thursday 12th November, Amphi A IHP

Salle Pierre Grisvard — 3rd floor, bâtiment Borel.

14h–15h — Rob Rockwood — On the p-part of BSD at Eisenstein primes over abelian extensions of Q
15h–15h30 — Break
15h30–16h30 — Ting-Han Huang — On the third p-adic symmetric square L-function and its functional equation
16h45–17h45 — Chris Lazda — Local Duality theorems for syntomic cohomology over local and global function fields

Friday 13th November, Amphi A IHP

Salle Yvette Cauchois — 2nd floor, bâtiment Perrin.

10h–11h — David Lilienfeldt — Elements in K4 and regulator maps of Fermat curves
11h–11h30 — Break
11h30–12h30 — Sally Gilles — Gm-cohomology of p-adic Stein spaces
13h30–14h30 — Joaquín Rodrigues Jacinto — Exponential maps and Iwasawa Theory