Arrival Date: Sunday January 5, 2020. Departure Date: Saturday January 11, 2020.
All talks will be at Huxley Bldg 140. [ click for map ]
Registration and coffee/tea are in the Huxley 5th floor common room.
The workshop will have two main themes:
(A) The Donaldson-Segal programme for defining enumerative invariants of compact G2-manifolds by counting G2 instantons, with correction terms from associative 3-folds. Analysis of G2-instanton moduli spaces, singularities of G2-instantons. Analysis of Seiberg-Witten type equations on 3-manifolds used to define correction terms in Donaldson-Segal programme. Related gauge theory problems, including singularities of Hermitian-Yang Mills connections.
(B) The Pantev-Toën-Vaquié-Vezzosi theory of shifted symplectic derived algebraic geometry, giving geometric structures on Calabi-Yau moduli spaces, and its applications to generalizations of Donaldson-Thomas theory of Calabi-Yau 3- and 4-folds. One particular aim is to present the theory in a way accessible to String Theorists, to encourage communication between mathematicians and physicists on this subject, and to facilitate interpretation of the implications of the theory in String Theory terms. Algebro-geometric enumerative invariants (and Floer theories, etc), particularly of Calabi-Yau manifolds, related to the PTVV theory: Donaldson-Thomas, Gromov-Witten, and Vafa-Witten invariants, Donaldson-Thomas type invariants of Calabi-Yau 4-folds, the Gopakumar-Vafa conjecture.
Attendance at the workshop is by invitation only (except for London locals). Non-invitees wishing to attend may contact the organizers, but are likely to be disappointed, as we are already inviting as many as the lecture theatre will comfortably hold, so we can only include others if we have refusals.
- Aleksander Doan (Columbia)
- Simon Donaldson (Stony Brook and Imperial College London)
- Penka Georgieva (Paris)
- Andriy Haydys (Freiburg)
- Eleny Ionel (Stanford)
- Dominic Joyce (Oxford)
- Yang Li (Institute for Advanced Study)
- Davesh Maulik (MIT)
- Tony Pantev (University of Pensylvania)
- Tristan Riviere (Zurich)
- Pavel Safronov (Zurich)
- Vivek Shende (U. C. Berkeley)
- Song Sun (U. C. Berkeley)
- Richard Thomas (Imperial College London)