Defining Poisson Brackets: Analytic Functions in Multiple Variables

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Discussion Overview

The discussion revolves around the definition and calculation of Poisson brackets for analytic functions in multiple variables. Participants explore the relationship between analytic functions and their power expansions, particularly in the context of Poisson brackets, and seek resources for further understanding.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant asserts that Poisson brackets between two analytic functions can be defined using fundamental Poisson brackets and their properties.
  • Another participant suggests that if a function is analytic, it can be expressed as a power expansion, which can then be substituted into the Poisson bracket for simplification using basic rules.
  • A participant inquires about the power expansion of functions of multiple variables, specifically asking for clarification on the expansion of f(x,y).
  • One participant recommends searching for "calculus of several/many variables" and points to a Wikipedia page that includes a section on Taylor series in several variables.
  • Another participant requests suggestions for resources on using Taylor series with Poisson brackets.
  • One participant expresses a lack of knowledge regarding references for the topic of Taylor series and Poisson brackets.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and seek resources, but there is no consensus on specific references or methods for using Taylor series with Poisson brackets.

Contextual Notes

Some assumptions about the properties of analytic functions and the application of Taylor series in multiple variables remain unaddressed. The discussion does not resolve the specific methodologies for applying these concepts to Poisson brackets.

Who May Find This Useful

Individuals interested in the mathematical foundations of Poisson brackets, analytic functions, and Taylor series in multiple variables may find this discussion relevant.

stefano colom
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l know you can define poisson brackets between two analytic function in several variables f(q1,q2,q3,..,p1,p2,p3,..) and g (q1,q2,q3,..,p1,p2,p3,..) only by foundamental poisson brackets and their proprieties.how is it possible?
 
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If the function is analytic, this means it is equal to its power expansion. If you substitute this Taylor expansion in the Poisson bracket you want to calculate, you can then use simple rules to simplify it (like P.B. of sum is sum of P.B. etc) to few basic P.B.s, like that for q1,p1.
 
how it is the power expansion of the function f(x,y)?
l know the power expansion of f(x), but the one of f(x,y)? can anyone tell me a website where l can find more informations about that?thank you
 
can you suggest me a site where l can find how to use taylor series with Poisson Brackets?
 
unfortunately I do not know any reference for this topic.
 

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