DLMF:13.2.E7 (Q4297)

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DLMF:13.2.E7
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    Statements

    Defining formula
    U ⁡ ( - m , b , z ) = ( - 1 ) m ⁢ ( b ) m ⁢ M ⁡ ( - m , b , z ) = ( - 1 ) m ⁢ ∑ s = 0 m ( m s ) ⁢ ( b + s ) m - s ⁢ ( - z ) s . Kummer-confluent-hypergeometric-U 𝑚 𝑏 𝑧 superscript 1 𝑚 Pochhammer 𝑏 𝑚 Kummer-confluent-hypergeometric-M 𝑚 𝑏 𝑧 superscript 1 𝑚 superscript subscript 𝑠 0 𝑚 binomial 𝑚 𝑠 Pochhammer 𝑏 𝑠 𝑚 𝑠 superscript 𝑧 𝑠 {\displaystyle{\displaystyle U\left(-m,b,z\right)=(-1)^{m}{\left(b\right)_{m}}% M\left(-m,b,z\right)=(-1)^{m}\sum_{s=0}^{m}\genfrac{(}{)}{0.0pt}{}{m}{s}{\left% (b+s\right)_{m-s}}(-z)^{s}.}}
    0 references
    DLMF id
    DLMF:13.2.E7
    0 references
    Symbols used
    $$={{}_{1}F_{1}}\left(\NVar{a};\NVar{b};\NVar{z}\right)$$ Kummer confluent hypergeometric function
    Defining formula
    M ⁡ ( a , b , z ) Kummer-confluent-hypergeometric-M 𝑎 𝑏 𝑧 {\displaystyle{\displaystyle M\left(\NVar{a},\NVar{b},\NVar{z}\right)}}
    xml-id
    C13.S2.E2.m2acdec
    0 references
    Kummer confluent hypergeometric function
    Defining formula
    U ⁡ ( a , b , z ) Kummer-confluent-hypergeometric-U 𝑎 𝑏 𝑧 {\displaystyle{\displaystyle U\left(\NVar{a},\NVar{b},\NVar{z}\right)}}
    xml-id
    C13.S2.E6.m2aadec
    0 references
    Q10759
    Defining formula
    ( a ) n Pochhammer 𝑎 𝑛 {\displaystyle{\displaystyle{\left(\NVar{a}\right)_{\NVar{n}}}}}
    xml-id
    C5.S2.SS3.m1acdec
    0 references
    Q10754
    Defining formula
    ( m n ) binomial 𝑚 𝑛 {\displaystyle{\displaystyle\genfrac{(}{)}{0.0pt}{}{\NVar{m}}{\NVar{n}}}}
    xml-id
    C1.S2.SS1.m1adec
    0 references
    Q11561
    Defining formula
    m 𝑚 {\displaystyle{\displaystyle m}}
    xml-id
    C13.S1.XMD1.m1dec
    0 references
    Q11559
    Defining formula
    n 𝑛 {\displaystyle{\displaystyle n}}
    xml-id
    C13.S1.XMD2.m1adec
    0 references
    Q11558
    Defining formula
    s 𝑠 {\displaystyle{\displaystyle s}}
    xml-id
    C13.S1.XMD3.m1bdec
    0 references
    Q11557
    Defining formula
    z 𝑧 {\displaystyle{\displaystyle z}}
    xml-id
    C13.S1.XMD6.m1fdec
    0 references
     
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