Is the Complex Inequality with Gamma Functions Valid for Any b?

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Discussion Overview

The discussion revolves around the validity of a complex inequality involving gamma functions, specifically whether it holds for any value of the parameter b. The scope includes mathematical reasoning and exploration of properties of gamma functions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Mathematical reasoning

Main Points Raised

  • One participant presents an inequality involving gamma functions and asks about the conditions under which it holds.
  • Another participant questions whether b can be any real or complex number and seeks clarification on the nature of b and t, suggesting that b must be real.
  • A third participant confirms that both b and t are real and provides the definition of the gamma function.
  • One participant argues that the inequality is not valid for any b, referencing an asymptotic behavior that indicates specific values of b may be necessary for the inequality to hold, particularly for large |t|, but not uniformly.

Areas of Agreement / Disagreement

Participants express differing views on the validity of the inequality for any b, with some suggesting restrictions while others seek clarification on the parameters involved. The discussion remains unresolved regarding the general applicability of the inequality.

Contextual Notes

There are limitations regarding the assumptions about the parameters b and t, as well as the conditions under which the inequality may hold. The discussion highlights the need for further exploration of specific cases and the behavior of the gamma functions involved.

eljose
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let be the inequality:

[tex][\frac{\Gamma(1/4-b/2-it/2)}{\Gamma(1/4+b/2+it/2)}]<\frac{\Gamma(1/4-b/2)}{\Gamma(1/4+b/2)}[/tex]

where [] means modulus of the complex number...
 
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and gamma is the gamma function presumably... is b any real or complex number? and t? apparently b must be real, looking at it. i mean, is the rhs modded too?
 
b and t are both real and [tex]\Gamma(x)=\int_0^{\infty}t^{x-1}e^{-t}dt[/tex]
 
Last edited:
It's certainly not true for any b, remember the asymptotic I gave you for [tex]\chi[/tex] before? It can easily tell you which b's even have a chance for this to be true and also that for these b's it will hold for a large enough |t| (though not uniformly).
 

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