DLMF:18.17.E29 (Q5770)

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DLMF:18.17.E29
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    Statements

    Defining formula
    ∫ 0 ∞ x 2 ⁢ m ⁢ e - 1 2 ⁢ x 2 ⁢ L n ( 2 ⁢ m ) ⁡ ( x 2 ) ⁢ cos ⁡ ( x ⁢ y ) ⁢ d x = ( - 1 ) m ⁢ 1 2 ⁢ π ⁢ 1 n ! ⁢ e - 1 2 ⁢ y 2 ⁢ 𝐻𝑒 n ⁡ ( y ) ⁢ 𝐻𝑒 n + 2 ⁢ m ⁡ ( y ) . superscript subscript 0 superscript 𝑥 2 𝑚 superscript 𝑒 1 2 superscript 𝑥 2 Laguerre-polynomial-L 2 𝑚 𝑛 superscript 𝑥 2 𝑥 𝑦 𝑥 superscript 1 𝑚 1 2 𝜋 1 𝑛 superscript 𝑒 1 2 superscript 𝑦 2 Hermite-polynomial-He 𝑛 𝑦 Hermite-polynomial-He 𝑛 2 𝑚 𝑦 {\displaystyle{\displaystyle\int_{0}^{\infty}x^{2m}e^{-\frac{1}{2}x^{2}}L^{(2m% )}_{n}\left(x^{2}\right)\cos\left(xy\right)\mathrm{d}x=(-1)^{m}\sqrt{\tfrac{1}% {2}\pi}\frac{1}{n!}e^{-\frac{1}{2}y^{2}}\mathit{He}_{n}\left(y\right)\mathit{% He}_{n+2m}\left(y\right).}}
    0 references
    DLMF id
    DLMF:18.17.E29
    0 references
    Symbols used
    Q11525
    Defining formula
    𝐻𝑒 n ⁡ ( x ) Hermite-polynomial-He 𝑛 𝑥 {\displaystyle{\displaystyle\mathit{He}_{\NVar{n}}\left(\NVar{x}\right)}}
    xml-id
    C18.S3.T1.t1.r14.m2agdec
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    Q11333
    Defining formula
    L n ( α ) ⁡ ( x ) Laguerre-polynomial-L 𝛼 𝑛 𝑥 {\displaystyle{\displaystyle L^{(\NVar{\alpha})}_{\NVar{n}}\left(\NVar{x}% \right)}}
    xml-id
    C18.S3.T1.t1.r12.m2addec
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    the ratio of the circumference of a circle to its diameter
    Defining formula
    π {\displaystyle{\displaystyle\pi}}
    xml-id
    C3.S12.E1.m2apdec
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    cosine function
    Defining formula
    cos ⁡ z 𝑧 {\displaystyle{\displaystyle\cos\NVar{z}}}
    xml-id
    C4.S14.E2.m2agdec
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    Q10770
    Defining formula
    d x 𝑥 {\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}
    xml-id
    C1.S4.SS4.m1aabdec
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    base of natural logarithm
    Defining formula
    e {\displaystyle{\displaystyle\mathrm{e}}}
    xml-id
    C4.S2.E11.m2aldec
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    Q10755
    Defining formula
    ! {\displaystyle{\displaystyle!}}
    xml-id
    introduction.Sx4.p1.t1.r15.m5afdec
    0 references
    Q10771
    Defining formula
    ∫ {\displaystyle{\displaystyle\int}}
    xml-id
    C1.S4.SS4.m3aabdec
    0 references
    Q11743
    Defining formula
    y 𝑦 {\displaystyle{\displaystyle y}}
    xml-id
    C18.S1.XMD1.m1xdec
    0 references
     
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