ZhejiangU (1984)

NankaiU (1985)

New York (1987)

Yale Time (1989)

Howe with students (1997)

With colleagues (1998)

With NUS colleagues (1998)

Vogan and me (2000)

UniAward (2002)

Xinjiang (2004)Vergne and me (2004)

OasisTurfan (2004)

HoweConf-NUS (2006)

Howe and me (2006)

HangZhou (2007)

ZhejiangU Classmates (2007)

NilpotentOrbits-Otsu City (2009)

National Stadium-Beijing (2011)

BranchingLaws-IMS (2012)

Paris 1 (2013)

Paris 2 (2013)

AsianMathConf-Pusan (2013)

YaleClassmates (2014)

Ngo and me (2015)

HoweConf-Yale (2015)

Yogjakata (2015)

NewDevRep-IMS (2016)

Hanoi (2016)

Ha Long Bay (2016)

EastCoast Singapore (2017)

ZhejiangU120 (2017)

Excursion (2017)

ColloqPoster (2018)

SerreVisiting (2018)

Daejeon (2018)

LieTheorists in NUS (2019)

90thDeptAnn (2019)

Singapore River (2019)

HKUST-KAIST-NUS (2019)