Question about Orthogonal Polynomials

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    Orthogonal Polynomials
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Discussion Overview

The discussion centers around orthogonal polynomials in the context of quantum mechanics, specifically related to the hydrogen atom. Participants seek references and explanations that present these concepts in a manner accessible to physicists rather than mathematicians.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant expresses interest in unified presentations of orthogonal polynomials as found in the book by Fuller and Byron, seeking further references.
  • Another participant suggests that while physics-oriented texts like Byron-Fuller and Arfken are useful, a mathematical perspective could provide deeper insights into Hilbert space theory and hypergeometric functions.
  • A participant mentions specific types of orthogonal polynomials, such as Hermite polynomials, Bessel functions, and Legendre polynomials, noting their relevance in quantum mechanics.
  • One participant describes how Arfken and Fuller approach the topic by framing it as an eigenvalue problem of a self-adjoint operator, analyzing conditions for polynomial solutions and presenting a general Rodrigues formula that encompasses various polynomial solutions.
  • The same participant expresses a desire for additional resources that complement the existing presentation in Fuller/Byron without delving into complex mathematics.

Areas of Agreement / Disagreement

Participants do not reach a consensus on specific additional resources, and multiple perspectives on the approach to understanding orthogonal polynomials are presented.

Contextual Notes

Some assumptions about the audience's familiarity with mathematical concepts are present, and the discussion reflects varying levels of depth in the treatment of orthogonal polynomials.

facenian
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Hello, I'm studing the hydrogen atom and I found an unified presentation of orhtogonal polynomials in the book by Fuller and Byron. I would like to learn more about it but in the same spirit(for physicits not for mathematicians). Can someone give some references where to find more?
 
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Hmm, for physics usually a book like Byron-Fuller / Arfken / Morse & Feshbach would do. However, when you see the subject from the mathematical perspective, you can go deeper, into Hilbert space theory or into the analysis of hypergeometric functions which are the most natural generalizations.
 
What do you mean, like Hermite polynomials? Bessel functions are also basically polynomials. And of course Legendre polynomials. I'd learn those, we use all those in QM.
 
Arfken and Fuller presents clearly like a problem of eingenvalues of a selfadoint operator(sturn Liouville system) then he analyzes the conditions for the equation to render polynomials solution and from this one obteins all polynomials solutions(Hermite,Legendre,Laguerre,etc.) in a single framework and not like separate cases, for instance one can obtein a general Rodrigues formula encompassing all cases. It is very interesting and all done without fancy mathematics. I would very much like to see more of this, I mean more details, expleined by another author to complement the excellent presentation of Fuller/Byron
 

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