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Mathematics and computation

Mathematics and computation

Variational principles and topological constants of motion for MHD

26 Oct 2021 Sponsored by IUVSTA, Agilent Technologies

Available to watch now, IUVSTA, in partnership with Agilent Technologies explores how magnetohydrodynamics can be formulated through a variational principle as a field theory

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In this webinar, presented by Asher Yahalom, we describe how MHD can be formulated through a variational principle as a field theory. In particular, we will address the appropriate choice of variational variables that will minimize the computational load and allow us to obtain new analytical solution and better numerical schemes.

We will also show how the new action principles will allow us to derive new constants of motion using Noether’s theorem, some of them with a topological interpretation.

Attend this webinar to:

  • Understand how MHD can be formulated as a variational problem.
  • Understand how MHD can be simplified mathematically.
  • Learn how to use the formalism to obtain new conservation laws.

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Prof. Asher Yahalom is a full professor and the former vice dean of the Faculty of Engineering at Ariel University and the academic director of the free electron laser user center, which is located within the University Center campus. Born in Israel, hereceived a BSc, MSc and PhD in mathematics and physics from the Hebrew University in Jerusalem, Israel in 1990, 1991 and 1996 respectively. Asher was a postdoctoral fellow (1998) in the Department of Electrical Engineering of Tel-Aviv University, Israel, and a visiting fellow at the University of Cambridge, UK, during 2005–2006, 2008 and 2012.



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