``An educated person in Nottingham is as precious and rare a find as jam in a wartime doughnut'' (Grahame Greene)



Ergodic Theory (MA 427)

I am teaching this course for 4th year Mathematics students at Warwick University.

The lectures (in term 2) are: Tuesday 16-17 (MS.04); Wednesday 12-13 (B3.03); Thursday 14-15 (B3.03).

An important prerequisite is measure theory.
Here is an informal summary of those topics it would be useful to know: Summary of measure theory

Below are scans of my hand written lecture notes (often corrected as the course progressed)
lecture 1 (Overview)
lecture 2 (Invariant measures, Examples, Existance)
lecture 3 (Poincare Recurrence Theorem, Multiple Recurrence, Geodesic and horocycle flows)
lecture 4 (Ergodic measures, Examples, Existance)
lecture 5 (Kac's Theorem, von Neumann Ergodic Theorem)
lecture 6 (Birkhoff Ergodic Theorem)
lecture 7 (Subadditive ergodic theorem)
lecture 8 (Ergodicity of flows and Hopf method)
lecture 9 (Spectral Theory)
lecture 9.5 (Entropy)
lecture 10 (SMB theorem. OW theorem)
lecture 11 (Markov operators and Dunford-Schwartz-Hopf Ergodic Theorem)
lecture 12 (Pressure and equilibrium states)

Below are additional references
Paper of Kaznelson-Weiss: Short proof of ergodic theorem (L^1 functions and invariant measures)
Appendix of Parry book: Proof of spectral theorems

Below are typed lecture notes (often corrected as the course progressed)
lecture Notes: First part
lecture Notes: Second part
lecture Notes: All the notes

Example and Solution sheets:
Example sheet 1;
Example sheet 2;
Example sheet 3;
Example sheet 4;
Example sheet 5; ... Probably to be revised
Example sheet 6;
Example sheet 7;
Example sheet 8;

Solution sheet 1;
Solution sheet 2;
Solution sheet 3;
Solution sheet 4;



Complex Analysis (MA 3B8)

I am teaching this course for 3rd year Mathematics students at Warwick University.

The lectures (in term 2) are: Monday 9-10 (H.0.51); Wednesday 9-10 (MS.01); Friday 10-11 (H0.51).

Below are scans of my hand written lecture notes (often corrected as the course progressed)
lecture Notes 1 (Overview)
lecture Notes 2 (Mobius maps)
lecture Notes 3 (Applications of Mobius maps) and an article by Sarnak on Circle packings
lecture Notes 4 (Analyticity, Cauchy-Riemann equations)
lecture Notes 5 (Application:Non-acculumulation of zeros)
lecture Notes 6 (Integrals, Theorems of Gousart and Cauchy) (Correction)
lecture Notes 7 (Applications of Theorems of Gousart and Cauchy)
lecture Notes 8 (Properties of Analytic functions:Arg and Log)
lecture Notes 9 (Location of zeros: Argument Principle and Rouche's Theorem)
lecture Notes 10 (Weierstrauss-Hurwicz theorem, Liouville theorem)
lecture Notes 11 (Montel's Theorem)
lecture Notes 12 (Riemann Mapping Theorem)
lecture Notes 13 (Schwarz-Christoffel Theorem, Schwarz Reflection Principle, Osgood Caratheodory Theorem)
lecture Notes 14 (Harmonic functions)

Example and Solution sheets:
Example sheet 1
Example sheet 2
Example sheet 3
Example sheet 4
Example sheet 5
Example sheet 6

Solution sheet 1
Solution sheet 2 (TA's solutions)
Solution sheet 3 (TA's solutions)
Solution sheet 5 (TA's solutions)
Solution sheet 6 (TA's solutions)
Solution sheet 7 (TA's solutions)



Analysis I (MA131)

I taught this course for 1st year Mathematics students. Here are copies of two previous exams: Exam 1, Exam 2
Here are copies of:
workbook 1, assignment book 1
workbook 2, assignment book 2
workbook 3, assignment book 3
workbook 4, assignment book 4
workbook 5, assignment book 5
workbook 6, assignment book 6
workbook 7 assignment book 7

Dynamical Systems (MA428)

This was a 4th year course I taught, whose main prerequisite was Metric Spaces.
Below are scans of my personal lecture notes (often corrected as the course progressed):

lecture 1 (The introductory lecture)
lecture 2 (Rotations, minimality,transitivity, leading digit of 2^n)
lecture 3 (Period 3 implies chaos)
lecture 4 (Rotations numbers)- plus a note on lifts.
lecture 5 (Minimal homeomorphisms and Conjugacy)
lecture 6 (Denjoy's Theorem)
lecture 7 (Expanding maps, transitivity [again], mixing, periodic points)
lecture 8 (Sensitive dependence, Quadratic maps)
lecture 9 (Subshifts of finite type, mixing, periodic points)
lecture 10 (Aside: Seach Engines)
lecture 11 (Two sided shifts, minimality [again], van der Waerden's theorem) - plus a typed version
lecture 12 (Coding expanding maps of the circle using shifts)
lecture 13 (Coding Smale horsehoes, toral automorphisms and solenoids)
lecture 14 (Toral automorphisms [again], periodic points, the Shadowing property) plus a note on lyapunov exponents
lecture 15 (Structural stability)
lecture 16 (Topological entropy, spanning sets and seperating sets)
lecture 17 (Examples of Topological entropy: shift maps, toral automorphisms, billiards)
lecture 18 (Rational Maps, the Julia set, the Mandelbrot set)

Here are also some Example sheets (and Solution sheets):

Example sheet 0.5 and Solution sheet 0.5
Example sheet 1 and Solution sheet 1
Example sheet 2 and Solution sheet 2
Example sheet 3 and Solution sheet 3
Example sheet 3.5
Example sheet 4
Example sheet 5
I gave a talk in Durham (January 2009) to encourage students to study smooth ergodic theory . In October 2009 I gave two 10 minute presentations to 4th year undergraduates about analysls courses at Warwick and applying to do a PhD at Warwick