(This list is mainly for my own records.)
16/08/18-17/08/18: Visit to the Flatiron institute
16/07/18-17/07/18: Software and Mathematics of spectral methods workshop
09/07/18-13/07/18: ICOSAHOM 2018 (plenary speaker)
06/04/18: Courant Institute, Applied Math seminar (invited by Michael Overton)
02/04/18: BYU (invited by Tyler Jarvis)
15/03/18: MIT student Engineering symposium, keynote speaker
14/11/17: University of Maryland (invited by Howard Elman)
13/11/17: Temple University (invited by Daniel Szyld), colloquium
08/11/17-09/11/17: KU Leuven (examiner on thesis defense)
06/11/17-07/11/17: Workshop in TU Berlin
29/09/17: NJIT, colloquium (invited by Michael Booty)
12/08/17-15/08/17: MIT (invited by Laurent Demanet)
13/07/17-15/07/17: FoCM in Barcelona (organized NLA workshop)
27/06/17-30/06/17: 27th Biennial NA conference in Strathclyde
26/06/17: 18th IMA Leslie Fox prize meeting
19/06/17-23/06/17: Householder meeting in Virginia Tech. (plenary speaker)
09/06/17-10/06/17: Modern advances in Comput. Math. in Yale University
20/05/17: MIT PRIMES conference
16/05/17-19/05/17: NCAR, workshop on multiscale geoscience (invited by Natasha Flyer)
27/02/17-03/03/17: SIAM CSE meeting in Atlanta
11/11/16-13/11/16: Direct solver workshop in Purdue
31/10/16: Colloquium talk in Ithaca college
27/10/16-28/10/16: Math colloquium talk in Dartmouth
11/07/16-15/07/16: SIAM Annual meeting in Boston
22/05/16-25/05/16: 15th International Conference: Approximation theory, San Antonio (organized minisymposium on Practical approximation theory)
20/04/16-22/04/16: Purdue University (invited by Jie Shen)
10/04/16-11/04/16: University of California Irvine (invited by Hongkai Zhang)
05/04/16: Harvard SEAS (invited by Chris Rycroft)
21/03/16: John Hopkins, Center of Imaging Science (invited by Tilak Ratnanather)
23/02/16: University of New South Wales (invited by Quoc Thong Le Gia)
10/02/16-05/03/16: University of Sydney (invited by Sheehan Olver)
01/02/16-05/02/16: Boise State University (invited by Grady Wright)
11/11/15-12/11/15: University of Delaware (invited by Francisco-Javier Sayas)
25/08/15-28/08/15: New directions in Numerical Computations, Oxford
23/06/15-27/06/15: 26th Biennial Numerical Analysis conference in Strathclyde
22/06/13: Leslie Fox Prize in Strathclyde
01/06/15-05/06/15: OPSFA 2015, Maryland, USA (invited by Nico Temme, Amparo Gil, Javier Segura)
21/04/15-21/04/15: University of Massachusetts Dartmouth (invited by Akil Narayan)
23/03/15-27/03/14: Courant Institute for NASC seminar
14/03/15-18/03/15: SIAM CSE 2015 conference in Utah (minisymposium, organized by Daan Huybrechs and Ben Adcock)
23/01/15: Cornell University for CAM Colloquium
01/12/14: Cornell University (invited by Alex Vladimirsky)
06/10/14-09/10/14: Courant Institute (visiting Tom Trogdon)
23/06/14-29/06/14: Dartmouth College CBMS-NSF Conference
08/05/14-10/05/14: NASC in Manchester University (invited by Vanni Noferini)
23/04/14-25/04/14: NEP14 workshop in Manchester
07/04/14-11/04/14: 100th European Study Group with Industry in Oxford
06/02/14-18/02/14: Visit to Toyko University (invited by Yuji Nakatsukasa)
10/01/14-17/01/14: Chebfun workshop in KAUST (invited by David Keyes)
30/10/13-31/10/13: Cambridge University for C.A.K.E. (invited by Marcus Webb)
02/09/13-12/10/13: Visit to Courant Institute
25/09/13-28/09/13: Visit to Colorado State University (invited by Dan Bates)
08/07/13-12/07/13: SIAM Annual meeting in San Diego
25/06/13-28/06/13: 25th Biennial Numerical Analysis conference in Strathclyde
24/06/13: Leslie Fox Prize in Edinburgh
28/05/13-31/05/13: Visit to EPFL (invited by Daniel Kressner)
10/04/13-12-04/13: Advances in Matrix Functions and Matrix Equations in Manchester
25/03/13-29/03/13: Chebfun tutorial in Nonlinear Waves-Theory and Applications (invited)
12/03/13-14/03/13: Visit to Leuven University (invited by Daan Huybrechs)
06/11/12-11/11/12: Visit to Manchester University (invited by Francoise Tisseur)
17/09/12-19/09/12: Chebfun and Beyond workshop in Oxford
04/07/12-30/07/12: Visit to Sydney University (invited by Sheehan Olver)
28/06/11-01/07/11: 24th Biennial Numerical Analysis conference in Strathclyde
07/01/11: UKIE SIAM meeting in Manchester