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Unit Overview

Description

This course provides an introduction to Lagrangian and Hamiltonian dynamics -- namely the reformulation of classical mechanics using variational principles -- and the modern interpretation of dynamics through the lens of symplectic geometry. The unit highlights how Newton's laws of motion arise through the calculus of variations based on the Principle of Least Action. Students will explore the correspondence between Lagrangian and Hamiltonian formulations of mechanics, with an emphasis on detecting symmetries and conservation laws using Noether's theorem. The role of symplectic geometry in structuring Hamiltonian dynamics will be explored, in particular symplectic/Poisson structures on manifolds, canonical transformations, Hamiltonian vector fields and Poisson brackets. Topics include integrability and stability of dynamical systems, Noether's theorem, and Hamilton-Jacobi theory. Applications will range from planetary motion and rigid body dynamics to modern perspectives in geometrical optics and thermodynamics. The course will also highlight how symplectic methods provide insight into contemporary mathematical physics, dynamical systems and quantum mechanics. By the end of the course, students will be able to analyse mechanical systems using geometric and analytical techniques, understand the role of geometric structures in physics, and apply mathematical reasoning to solve problems in mechanics.

Credit
6 points
Offering
AvailabilityLocationModeFirst year of offer
Not available in 2025UWA (Perth)Face to face
Outcomes

Students are able to (1) apply calculus of variations to derive equations of motion using the principle of least action

; (2) transfer between Lagrangian and Hamiltonian formulations of mechanics; (3) apply Noether's theorem to identify conservation laws from symmetries; (4) use modern differential geometric language and formalism to interpret dynamical systems as special curves on manifolds; and (5) identify the underlying geometric structure of physical equations and apply geometric arguments to extract information about the resulting dynamics.

Assessment

Indicative assessments in this unit are as follows: (1) assignments and (2) exam. Further information is available in the unit outline.



Student may be offered supplementary assessment in this unit if they meet the eligibility criteria.

Unit Coordinator(s)
Dr David Pfefferlé
Unit rules
Prerequisites
Successful completion of
MATH3032 Topology and Manifolds
Contact hours
3 hours per week
  • The availability of units in Semester 1, 2, etc. was correct at the time of publication but may be subject to change.
  • All students are responsible for identifying when they need assistance to improve their academic learning, research, English language and numeracy skills; seeking out the services and resources available to help them; and applying what they learn. Students are encouraged to register for free online support through GETSmart; to help themselves to the extensive range of resources on UWA's STUDYSmarter website; and to participate in WRITESmart and (ma+hs)Smart drop-ins and workshops.
  • Visit the Essential Textbooks website to see if any textbooks are required for this Unit. The website is updated regularly so content may change. Students are recommended to purchase Essential Textbooks, but a limited number of copies of all Essential Textbooks are held in the Library in print, and as an ebook where possible. Recommended readings for the unit can be accessed in Unit Readings directly through the Learning Management System (LMS).
  • Contact hours provide an indication of the type and extent of in-class activities this unit may contain. The total amount of student work (including contact hours, assessment time, and self-study) will approximate 150 hours per 6 credit points.