さて、フェセンコ先生の下記情報
フライング気味（RIMSのページには中止のまま）だが、
2020年は COVID19で中止として
2021年にやることは、十分考えられるよね

（参考）
https://www.maths.nottingham.ac.uk/plp/pmzibf/activity.html
Ivan Fesenko Activities
(抜粋)
Recent and forthcoming international workshops and conferences
・Inter-universal Teichmuller theory (IUT) summit 2020, September 7 - September 10 2021
　https://www.maths.nottingham.ac.uk/plp/pmzibf/files/iut2.html
　Inter-universal Teichmuller Theory (IUT) Summit 2021 RIMS workshop, September 7 - September 10 2021
・Invitation to inter-universal Teichmuller theory, August 31 - September 3 2021
　https://www.maths.nottingham.ac.uk/plp/pmzibf/files/iut1.html
　Invitation to inter-universal Teichmuller Theory (IUT) RIMS workshop, August 31-September 3 2021
・Combinatorial anabelian geometry and related topics, July 6 - July 9 2021
　https://www.maths.nottingham.ac.uk/plp/pmzibf/files/June2020.html
　Combinatorial Anabelian Geometry and Related Topics, RIMS workshop, July 6 - July 9, 2021
・Foundations and perspectives of anabelian geometry, June 28 - July 2 2021
　https://www.maths.nottingham.ac.uk/plp/pmzibf/files/May2020.html
　Foundations and Perspectives of Anabelian Geometry, RIMS workshop, June 28 - July 2 2021