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What is a good resource for functional derivatives, functional determinants, etc.? What is the branch of mathematics dealing with those things? It is not in my functional analysis book. What is a good resource on functionals in general?

  • 1
    This might not be what you want, but most books treating non-linear PDE tend to have a chapter or two of introductory nature about these topics.2012-10-01
  • 0
    Did you find one?2017-08-23

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