Personal Information

Welcome to the homepage of John Butcher of Auckland, New Zealand.
I am a mathematician specializing in numerical analysis.

Short biography

  • Born in Auckland, New Zealand
  • Educated at various primary schools in Auckland and in Dargaville primary school
  • Secondary education at Dargaville DHS, Taumarunui DHS and Hamilton HS
  • Tertiary education at Auckland University College and University of Sydney. BSc and MSc (Auckland); PhD and DSc (Sydney)
  • academic and research positions at Sydney and Canterbury Universities and Stanford Linear Accelerator Center
  • Professor of Mathematics, University of Auckland 1966 - 1998
  • Emeritus Professor 1999 - present

Research Interests

Ordinary differential equations

Numerical methods for the solution of ordinary differential equations (section 65L in Mathematical Reviews). \[ \frac{d y}{d x} = f(y) \] Within this broad area I work on a number of specialities some of which are listed below.
Runge-Kutta methods
\[ \begin{array}{c|cccc} c_1 & a_{11} & a_{12} & \cdots & a_{1s}\\ c_2 & a_{21} & a_{22} & \cdots & a_{2s}\\ \vdots & \vdots &\vdots & &\vdots \\ c_s & a_{s1} & a_{s2} & \cdots & a_{ss}\\ \hline & b_1 & b_2 & \cdots & b_s \end{array} \]
General linear methods
\[ \begin{bmatrix} A & U\\ B & V \end{bmatrix} \]
G-symplectic general linear methods
\[ \begin{bmatrix} DA + A^{\sf T} D - B ^{\sf T} G B & DU - B^{\sf T} G V\\ U^{\sf T}D - V^{\sf T} G B & G - V^{\sf T} G V \end{bmatrix}=0. \]

Honours and awards

  • Fellow Royal Society of New Zealand, 1980
  • New Zealand Mathematical Society, Research Award
  • Hector Medal, RSNZ, 1996
  • Life Member, NZMS, 1998
  • Fellow, NZMS, 1999
  • ICCMSE Prize for Computational Mathematics, 2003
  • Honorary Fellowship: European Society of Computational and Applied Mathematics, 2008
  • Fellow, Society for Industrial and Applied Mathematics, 2010
  • Jones Medal, Royal Society of New Zealand, 2010
  • van Wijngaarden Award, 2011
  • Officer of the New Zealand Order of Merit, 2013

Travel and conferences 2015


Beijing, 10-14 August 2015
Contributed paper: "On fifth order Runge-Kutta methods"


Kuala Lumpur, 28 August 2015
Invited paper: "Counting trees and rooted trees with applications"
Invited workshop: "B-series for the analysis of numerical methods"

Universiti Putra Malaysia

Putra Jaya, 17-28 August 2015
Three lectures on Runge-Kutta methods (17 - 19 August)
Seminar (28 August): "Solving evolutionary problems stably and conservatively"

Runge-Kutta workshop

Kassel, 31 August 31 - 2 September 2015
Invited presentations: “Survey of Runge-Kutta Methods“, "Runge-Kutta Methods for Non-Stiff Problems", "Runge-Kutta Methods for Stiff Problems", "Runge-Kutta Methods for Hamiltonian Problems"

Humboldt Universiät zu Berlin

Berlin, 4 September 2015:
Seminar "B-series and the order of general linear methods"


Halle, 7-11 September 2015
Contributed paper within Minisymposium in honour of R. März: “Constructing high order G-symplectic methods“


Potsdam, 14-18 September 2015
Contributed paper: “The cohesiveness of G-symplectic methods“

Universiät Kassel

Kassel 21 - 23 September 2015:
Seminar "B-series for the analysis of numerical methods"

New Zealand Mathematical Society Colloquium

Christchurch 1 - 3 Decembet 2015:
Contributed paper "The construction of high order G-symplectic methods"

AUT Mathematical Sciences Symposium

Christchurch 7 - 8 Decembet 2015:
Contributed paper "Speeding up calculations"

Travel and conferences 2016


Rhodes, Greece, 19 - 25 September 2016:
Invited paper ”Trees, B-series and G-symplectic methods”,

Seminar ETH

Zürich, 28 September 2016:
Lecture ”The construction of high order G-symplectic methods”

Conference on Geometric Integration

La Trobe University, 5-7 December 2016:
Lecture ”The construction of high order G-symplectic methods”

Travel and conferences 2019


Innsbruck, Austria, 22 - 26 July 2019:
Invited paper ”45 years of B-series”,

Book: "Numerical methods for ordinary differential equations"

Third Edition

The third edition was published in July 2016.

My University of Auckland web-site

At the present time, information is being shared, and in some cases duplicated between this site and my site at the University of Auckland.