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 | | http://functions.wolfram.com/03.03.13.0017.01 | 
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 | | Nest[z D[#1, z] & , w[z], 4] - 2 (\[Nu]^2 + \[Mu]^2) 
    Nest[z D[#1, z] & , w[z], 2] + (\[Nu]^2 - \[Mu]^2)^2 w[z] + 
   4 z^2 (2 w[z] + 3 z Derivative[1][w][z] + Nest[z D[#1, z] & , w[z], 2]) == 
  0 /; w[z] == Subscript[c, 1] BesselJ[\[Nu], z] BesselJ[\[Mu], z] + 
   Subscript[c, 2] BesselJ[\[Nu], z] BesselY[\[Mu], z] + 
   Subscript[c, 3] BesselY[\[Nu], z] BesselJ[\[Mu], z] + 
   Subscript[c, 4] BesselY[\[Nu], z] BesselY[\[Mu], z] | 
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 | | Cell[BoxData[RowBox[List[RowBox[List[RowBox[List[RowBox[List["Nest", "[", RowBox[List[RowBox[List[RowBox[List["z", " ", RowBox[List[SubscriptBox["\[PartialD]", "z"], "#1"]]]], "&"]], ",", RowBox[List["w", "[", "z", "]"]], ",", "4"]], "]"]], "-", RowBox[List["2", " ", RowBox[List["(", RowBox[List[SuperscriptBox["\[Nu]", "2"], "+", SuperscriptBox["\[Mu]", "2"]]], ")"]], " ", RowBox[List["Nest", "[", RowBox[List[RowBox[List[RowBox[List["z", " ", RowBox[List[SubscriptBox["\[PartialD]", "z"], "#1"]]]], "&"]], ",", RowBox[List["w", "[", "z", "]"]], ",", "2"]], "]"]]]], "+", RowBox[List[SuperscriptBox[RowBox[List["(", RowBox[List[SuperscriptBox["\[Nu]", "2"], "-", SuperscriptBox["\[Mu]", "2"]]], ")"]], "2"], " ", RowBox[List["w", "[", "z", "]"]]]], "+", RowBox[List["4", " ", SuperscriptBox["z", "2"], " ", RowBox[List["(", RowBox[List[RowBox[List["2", " ", RowBox[List["w", "[", "z", "]"]]]], "+", RowBox[List["3", " ", "z", " ", RowBox[List[SuperscriptBox["w", "\[Prime]", Rule[MultilineFunction, None]], "[", "z", "]"]]]], "+", RowBox[List["Nest", "[", RowBox[List[RowBox[List[RowBox[List["z", " ", RowBox[List[SubscriptBox["\[PartialD]", "z"], "#1"]]]], "&"]], ",", RowBox[List["w", "[", "z", "]"]], ",", "2"]], "]"]]]], ")"]]]]]], "\[Equal]", "0"]], "/;", RowBox[List[RowBox[List["w", "[", "z", "]"]], "\[Equal]", RowBox[List[RowBox[List[SubscriptBox["c", "1"], RowBox[List["BesselJ", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], " ", RowBox[List["BesselJ", "[", RowBox[List["\[Mu]", ",", "z"]], "]"]]]], "+", RowBox[List[SubscriptBox["c", "2"], RowBox[List["BesselJ", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], " ", RowBox[List["BesselY", "[", RowBox[List["\[Mu]", ",", "z"]], "]"]]]], "+", RowBox[List[SubscriptBox["c", "3"], RowBox[List["BesselY", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], " ", RowBox[List["BesselJ", "[", RowBox[List["\[Mu]", ",", "z"]], "]"]]]], "+", RowBox[List[SubscriptBox["c", "4"], RowBox[List["BesselY", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], " ", RowBox[List["BesselY", "[", RowBox[List["\[Mu]", ",", "z"]], "]"]]]]]]]]]]]] | 
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<mn> 2 </mn>  </munderover>  <mrow>  <mo> ( </mo>  <mrow>  <mi> z </mi>  <mo> ⁢ </mo>  <mfrac>  <mi> d </mi>  <mrow>  <mi> d </mi>  <mo> ⁢ </mo>  <mi> z </mi>  </mrow>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mi> w </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  </mrow>  <mo> + </mo>  <mtext>   </mtext>  <mrow>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <msup>  <mi> ν </mi>  <mn> 2 </mn>  </msup>  <mo> - </mo>  <msup>  <mi> μ </mi>  <mn> 2 </mn>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mn> 2 </mn>  </msup>  <mo> ⁢ </mo>  <mrow>  <mi> w </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  </mrow>  <mo> + </mo>  <mrow>  <mn> 4 </mn>  <mo> ⁢ </mo>  <msup>  <mi> z </mi>  <mn> 2 </mn>  </msup>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <munderover>  <mo> ∏ </mo>  <mrow>  <mi> k </mi>  <mo> = </mo>  <mn> 1 </mn>  </mrow>  <mn> 2 </mn>  </munderover>  <mrow>  <mo> ( </mo>  <mrow>  <mi> z </mi>  <mo> ⁢ </mo>  <mfrac>  <mi> d </mi>  <mrow>  <mi> d </mi>  <mo> ⁢ </mo>  <mi> z </mi>  </mrow>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mi> w </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  </mrow>  <mo> + </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <mi> w </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  </mrow>  <mo> + </mo>  <mrow>  <mn> 3 </mn>  <mo> ⁢ </mo>  <mi> z </mi>  <mo> ⁢ </mo>  <mrow>  <msup>  <mi> w </mi>  <mo> ′ </mo>  </msup>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  <mo> ⩵ </mo>  <mn> 0 </mn>  </mrow>  <mo> /; </mo>  <mrow>  <mrow>  <mi> w </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  <mo> ⩵ </mo>  <mrow>  <mrow>  <msub>  <mi> c </mi>  <mn> 1 </mn>  </msub>  <mo> ⁢ </mo>  <mrow>  <msub>  <mi> J </mi>  <mi> μ </mi>  </msub>  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</mrow>  <mo> ⁢ </mo>  <mrow>  <msub>  <mi> Y </mi>  <mi> ν </mi>  </msub>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <ci> Condition </ci>  <apply>  <eq />  <apply>  <plus />  <apply>  <times />  <apply>  <product />  <bvar>  <ci> k </ci>  </bvar>  <lowlimit>  <cn type='integer'> 1 </cn>  </lowlimit>  <uplimit>  <cn type='integer'> 4 </cn>  </uplimit>  <apply>  <times />  <ci> z </ci>  <apply>  <times />  <ci> d </ci>  <apply>  <power />  <apply>  <times />  <ci> d </ci>  <ci> z </ci>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  <apply>  <ci> w </ci>  <ci> z </ci>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <plus />  <apply>  <power />  <ci> μ </ci>  <cn type='integer'> 2 </cn>  </apply>  <apply>  <power />  <ci> ν </ci>  <cn type='integer'> 2 </cn>  </apply>  </apply>  <apply>  <product />  <bvar>  <ci> k </ci>  </bvar>  <lowlimit>  <cn type='integer'> 1 </cn>  </lowlimit>  <uplimit>  <cn type='integer'> 2 </cn>  </uplimit>  <apply>  <times />  <ci> z </ci>  <apply>  <times />  <ci> d </ci>  <apply>  <power />  <apply>  <times />  <ci> d </ci>  <ci> z </ci>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  <apply>  <ci> w </ci>  <ci> z </ci>  </apply>  </apply>  </apply>  <apply>  <times />  <apply>  <power />  <apply>  <plus />  <apply>  <power />  <ci> ν </ci>  <cn type='integer'> 2 </cn>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <power />  <ci> μ </ci>  <cn type='integer'> 2 </cn>  </apply>  </apply>  </apply>  <cn type='integer'> 2 </cn>  </apply>  <apply>  <ci> w </ci>  <ci> z </ci>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> 4 </cn>  <apply>  <power />  <ci> z </ci>  <cn type='integer'> 2 </cn>  </apply>  <apply>  <plus />  <apply>  <times />  <apply>  <product />  <bvar>  <ci> k </ci>  </bvar>  <lowlimit>  <cn type='integer'> 1 </cn>  </lowlimit>  <uplimit>  <cn type='integer'> 2 </cn>  </uplimit>  <apply>  <times />  <ci> z </ci>  <apply>  <times />  <ci> d </ci>  <apply>  <power />  <apply>  <times />  <ci> d </ci>  <ci> z </ci>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  <apply>  <ci> w </ci>  <ci> z </ci>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> 2 </cn>  <apply>  <ci> w </ci>  <ci> z </ci>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> 3 </cn>  <ci> z </ci>  <apply>  <partialdiff />  <bvar>  <ci> z </ci>  </bvar>  <apply>  <ci> w </ci>  <ci> z </ci>  </apply>  </apply>  </apply>  </apply>  </apply>  </apply>  <cn type='integer'> 0 </cn>  </apply>  <apply>  <eq />  <apply>  <ci> w </ci>  <ci> z </ci>  </apply>  <apply>  <plus />  <apply>  <times />  <apply>  <ci> Subscript </ci>  <ci> c </ci>  <cn type='integer'> 1 </cn>  </apply>  <apply>  <ci> BesselJ </ci>  <ci> μ </ci>  <ci> z </ci>  </apply>  <apply>  <ci> BesselJ </ci>  <ci> ν </ci>  <ci> z </ci>  </apply>  </apply>  <apply>  <times />  <apply>  <ci> Subscript </ci>  <ci> c </ci>  <cn type='integer'> 2 </cn>  </apply>  <apply>  <ci> BesselJ </ci>  <ci> ν </ci>  <ci> z </ci>  </apply>  <apply>  <ci> BesselY </ci>  <ci> μ </ci>  <ci> z </ci>  </apply>  </apply>  <apply>  <times />  <apply>  <ci> Subscript </ci>  <ci> c </ci>  <cn type='integer'> 3 </cn>  </apply>  <apply>  <ci> BesselJ </ci>  <ci> μ </ci>  <ci> z </ci>  </apply>  <apply>  <ci> BesselY </ci>  <ci> ν </ci>  <ci> z </ci>  </apply>  </apply>  <apply>  <times />  <apply>  <ci> Subscript </ci>  <ci> c </ci>  <cn type='integer'> 4 </cn>  </apply>  <apply>  <ci> BesselY </ci>  <ci> μ </ci>  <ci> z </ci>  </apply>  <apply>  <ci> BesselY </ci>  <ci> ν </ci>  <ci> z </ci>  </apply>  </apply>  </apply>  </apply>  </apply>  </annotation-xml>  </semantics>  </math> 
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 | | Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List[RowBox[List["Nest", "[", RowBox[List[RowBox[List[RowBox[List["z_", " ", RowBox[List[SubscriptBox["\[PartialD]", RowBox[List["z_"]]], "#1"]]]], "&"]], ",", RowBox[List["w", "[", "z_", "]"]], ",", "4"]], "]"]], "-", RowBox[List["2", " ", RowBox[List["(", RowBox[List[SuperscriptBox["\[Nu]_", "2"], "+", SuperscriptBox["\[Mu]_", "2"]]], ")"]], " ", RowBox[List["Nest", "[", RowBox[List[RowBox[List[RowBox[List["z_", " ", RowBox[List[SubscriptBox["\[PartialD]", RowBox[List["z_"]]], "#1"]]]], "&"]], ",", RowBox[List["w", "[", "z_", "]"]], ",", "2"]], "]"]]]], "+", RowBox[List[SuperscriptBox[RowBox[List["(", RowBox[List[SuperscriptBox["\[Nu]_", "2"], "-", SuperscriptBox["\[Mu]_", "2"]]], ")"]], "2"], " ", RowBox[List["w", "[", "z_", "]"]]]], "+", RowBox[List["4", " ", SuperscriptBox["z_", "2"], " ", RowBox[List["(", RowBox[List[RowBox[List["2", " ", RowBox[List["w", "[", "z_", "]"]]]], "+", RowBox[List["3", " ", "z_", " ", RowBox[List[SuperscriptBox["w", "\[Prime]", Rule[MultilineFunction, None]], "[", "z_", "]"]]]], "+", RowBox[List["Nest", "[", RowBox[List[RowBox[List[RowBox[List["z_", " ", RowBox[List[SubscriptBox["\[PartialD]", RowBox[List["z_"]]], "#1"]]]], "&"]], ",", RowBox[List["w", "[", "z_", "]"]], ",", "2"]], "]"]]]], ")"]]]]]], "]"]], "\[RuleDelayed]", RowBox[List["0", "/;", RowBox[List[RowBox[List["w", "[", "z", "]"]], "\[Equal]", RowBox[List[RowBox[List[SubscriptBox["c", "1"], " ", RowBox[List["BesselJ", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], " ", RowBox[List["BesselJ", "[", RowBox[List["\[Mu]", ",", "z"]], "]"]]]], "+", RowBox[List[SubscriptBox["c", "2"], " ", RowBox[List["BesselJ", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], " ", RowBox[List["BesselY", "[", RowBox[List["\[Mu]", ",", "z"]], "]"]]]], "+", RowBox[List[SubscriptBox["c", "3"], " ", RowBox[List["BesselY", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], " ", RowBox[List["BesselJ", "[", RowBox[List["\[Mu]", ",", "z"]], "]"]]]], "+", RowBox[List[SubscriptBox["c", "4"], " ", RowBox[List["BesselY", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], " ", RowBox[List["BesselY", "[", RowBox[List["\[Mu]", ",", "z"]], "]"]]]]]]]]]]]]]] | 
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 | | Date Added to functions.wolfram.com (modification date) | 
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