Dr. Lyonell Boulton

photo My official departmental front page.
Department of Mathematics page.
Maxwell Institute for Mathematical Sciences page.
Of. CM S20
Tel. 131 4513973
Department of Mathematics
Heriot-Watt University
Edinburgh EH14 4AS
Scotland UK

Research Interest

Spectral analysis of linear operators in general. Non-selfadjoint operators. Pseudospectra of operator and matrix polynomials. Computational spectral theory. Spectral pollution and spectral enclosures. Ordinary differential equations. Mathematical physics.

Read a better description here.

My most demanding collaborator ever.

The reason why I live in Scotland.

The time in Edinburgh:

Recent Manuscripts

Complete list of publications.

Seminars at HWU

Events at Heriot-Watt University: Seminars, lectures and general talks

Events at the Maxwell Institute for Mathematical Sciences: Seminars, lectures and general talks

CANPDE Analysis Seminar

Edinburgh Mathematical Physics Group

Computational Mathematics and Mathematical Biology Seminars

Academic Meetings


Mathematical aspects of the physics with non-self-adjoint operators: Marseille - June 2017

Recent Past

Fourth Najman Conference on Spectral Problems for Operators and Matrices: Opatija - September 2015

Third Scottish PDE Colloquium: June 2015

Mathematical aspects of the physics with non-self-adjoint operators: AIM - June 2015 (here is a picture of the participants of this workshop)

Pseudospectra of operators: spectral singularities, semiclassics, pencils and random matrices: Edinburgh - September 2014

Variational and Spectral Methods in Quantum Mechanics: IHP - Spring 2013

Mathematical aspects of the physics with non-self-adjoint operators: ICMS - March 2013


PhD Students

Houry Melkonian Current.

Kim Smedley-Williams Current (co-supervision with Bernd Schroers).

Aatef Hobiny 2010-2014.

Active Lecture Courses

Numerical Analysis A: F18NA2 - Second Semester 15-16.

Applied Linear Algebra: F11AL2 - Second semester 15-16.


HWU People finder.

MIGSAA Intranet.


My calendar

Appointments: please send me an email - free spots below do not guarantee full availability.

Personal links

Personal Picasa pictures

Raquel's Picasa pictures

Notas para Eliza, a Raquel Rivas' blog

Cuentos de la Caldera Este, a Raquel Rivas' blog

The Can Collector and The Debt, two of Raquel Rivas' short stories

Avalanche Information for Scotland

Mountain Weather Information Service

Weather forecast for Pentland Hills Regional Park

Royal Commonwealth Pool timetable

Xcite Broxburn Pool timetable

Xcite Bathgate Pool timetable