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. Approximation theory.

Read a better description here.

My most demanding collaborator ever.

The reason why I live in Scotland.


Recent Manuscripts

Older publications.

Events around Edinburgh

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

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

Academic Meetings


Meeting in honour of Jack Carr: Edinburgh - May 2018

Past five years

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

AMS Spring Eastern Sectional Meeting 1129: New York - May 2017

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

Spyridon Dimoudis Current.

Houry Melkonian 2013-2017.

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

Aatef Hobiny 2010-2014.

Active Lecture Courses

Problem Solving: F17GA - Second Semester 17-18.

Numerical Analysis A: F18NA - Second Semester 17-18.


HWU People finder.

MIGSAA Intranet.


My calendar

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

Personal links

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