Series representation for this integral

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SUMMARY

The discussion centers on finding a series representation for the integral $$\int_{i=0}^\infty {x^{\frac{2n-1}{2}}(b+x)^{-n}}e^{\left(-{\frac{x^2}{2m}}+\frac{x}{p}\right)} dx$$ where b, m, n, and p are constants. The user has identified a related integral involving the parabolic cylinder function from the "Table of Integrals, Series and Products" by Gradshteyn and Ryzhik but seeks a specific representation for the original expression. The proposed method involves writing power series for the exponential and the term $(b+x)^{-n}$, multiplying these series, and integrating term by term.

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  • Understanding of integral calculus, particularly improper integrals.
  • Familiarity with series expansions and power series.
  • Knowledge of special functions, specifically parabolic cylinder functions.
  • Experience with mathematical tools such as Gradshteyn and Ryzhik's integral tables.
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  • Research power series representations for exponential functions.
  • Study the properties and applications of parabolic cylinder functions.
  • Explore term-by-term integration techniques for series.
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ConfusedCat
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I am trying to find a series representation for the following expression
$$\int_{i=0}^\infty {x^{\frac{2n-1}{2}}(b+x)^{-n}}e^{\left(-{\frac{x^2}{2m}}+\frac{x}{p}\right)} dx$$ ; b,m,n,p are constant.

Is there a name for this function?

I found a series representation for $$\int_{i=0}^\infty {x^{\frac{2n-1}{2}}}e^{\left(-{\frac{x^2}{2m}}+\frac{x}{p}\right)} dx$$ in Table of Integrals, Series and Products by Gradshteyn and Ryzhik, involving parabolic cylinder function, but nothing that fits the first expression.

Any help would be appreciated.
 
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I would try writing power series representations for the exponential and (b+ x)^{-n}, multiply the series, then integrate term by term.
 

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