2.16.82 Problems 8101 to 8200

Table 2.180: Main lookup table. Sorted sequentially by problem number.

#

ODE

Program classification

CAS classification

Solved?

Verified?

time (sec)

8101

\[ {}x^{2} \left (x^{2}+1\right ) y^{\prime \prime }-x \left (-x^{2}+5\right ) y^{\prime }-\left (25 x^{2}+7\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

1.053

8102

\[ {}x^{2} \left (x^{2}+1\right ) y^{\prime \prime }+x \left (2 x^{2}+5\right ) y^{\prime }-21 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

1.041

8103

\[ {}4 x^{2} \left (x^{2}+1\right ) y^{\prime \prime }+4 x \left (x^{2}+2\right ) y^{\prime }-\left (x^{2}+15\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.958

8104

\[ {}y^{\prime \prime }-\frac {2 \left (t +1\right ) y^{\prime }}{t^{2}+2 t -1}+\frac {2 y}{t^{2}+2 t -1} = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

1.045

8105

\[ {}y^{\prime \prime }-4 t y^{\prime }+\left (4 t^{2}-2\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.408

8106

\[ {}\left (-t^{2}+1\right ) y^{\prime \prime }-2 t y^{\prime }+2 y = 0 \]

kovacic

[_Gegenbauer]

0.824

8107

\[ {}\left (t^{2}+1\right ) y^{\prime \prime }-2 t y^{\prime }+2 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.579

8108

\[ {}\left (-t^{2}+1\right ) y^{\prime \prime }-2 t y^{\prime }+6 y = 0 \]

kovacic

[_Gegenbauer]

0.767

8109

\[ {}\left (1+2 t \right ) y^{\prime \prime }-4 \left (t +1\right ) y^{\prime }+4 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.76

8110

\[ {}t^{2} y^{\prime \prime }+t y^{\prime }+\left (t^{2}-\frac {1}{4}\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.562

8111

\[ {}y^{\prime \prime }-\frac {2 t y^{\prime }}{t^{2}+1}+\frac {2 y}{t^{2}+1} = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.398

8112

\[ {}y^{\prime \prime }+\left (t^{2}+2 t +1\right ) y^{\prime }-\left (4+4 t \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.756

8113

\[ {}2 t y^{\prime \prime }+\left (1-2 t \right ) y^{\prime }-y = 0 \]

kovacic

[_Laguerre]

0.695

8114

\[ {}2 t y^{\prime \prime }+\left (t +1\right ) y^{\prime }-2 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.782

8115

\[ {}2 t^{2} y^{\prime \prime }-t y^{\prime }+\left (t +1\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.711

8116

\[ {}2 t^{2} y^{\prime \prime }+\left (t^{2}-t \right ) y^{\prime }+y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.692

8117

\[ {}t^{2} y^{\prime \prime }+\left (-t^{2}+t \right ) y^{\prime }-y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.632

8118

\[ {}t y^{\prime \prime }-\left (t^{2}+2\right ) y^{\prime }+t y = 0 \]

kovacic

[_Lienard]

0.753

8119

\[ {}t^{2} y^{\prime \prime }+t \left (t +1\right ) y^{\prime }-y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.619

8120

\[ {}t y^{\prime \prime }-\left (4+t \right ) y^{\prime }+2 y = 0 \]

kovacic

[_Laguerre]

0.735

8121

\[ {}t^{2} y^{\prime \prime }+\left (t^{2}-3 t \right ) y^{\prime }+3 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.7

8122

\[ {}t y^{\prime \prime }+t y^{\prime }+2 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.658

8123

\[ {}t y^{\prime \prime }+\left (-t^{2}+1\right ) y^{\prime }+4 t y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.756

8124

\[ {}t^{2} y^{\prime \prime }-t \left (t +1\right ) y^{\prime }+y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.606

8125

\[ {}y^{\prime \prime }+4 x y^{\prime }+\left (4 x^{2}+6\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.569

8126

\[ {}\left (-z^{2}+1\right ) y^{\prime \prime }-3 z y^{\prime }+y = 0 \]

kovacic

[_Gegenbauer]

1.608

8127

\[ {}4 z y^{\prime \prime }+2 \left (1-z \right ) y^{\prime }-y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.691

8128

\[ {}f^{\prime \prime }+2 \left (z -1\right ) f^{\prime }+4 f = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.615

8129

\[ {}z y^{\prime \prime }-2 y^{\prime }+z y = 0 \]

kovacic

[_Lienard]

0.79

8130

\[ {}z y^{\prime \prime }+\left (2 z -3\right ) y^{\prime }+\frac {4 y}{z} = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.718

8131

\[ {}x y^{\prime \prime }+\left (1-2 x \right ) y^{\prime }+\left (-1+x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.569

8132

\[ {}x^{2} y^{\prime \prime }-2 x y^{\prime }+\left (x^{2}+2\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.523

8133

\[ {}\left (-x^{2}+1\right ) y^{\prime \prime }-2 x y^{\prime }+2 y = 0 \]

kovacic

[_Gegenbauer]

0.82

8134

\[ {}4 x^{2} y^{\prime \prime }+4 x y^{\prime }+\left (4 x^{2}-1\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.545

8135

\[ {}x y^{\prime \prime }-\left (2 x +1\right ) y^{\prime }+2 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.763

8136

\[ {}y^{\prime \prime }+2 x y^{\prime }+4 y = 0 \]

kovacic

[_erf]

0.49

8137

\[ {}y^{\prime \prime }+x y^{\prime }+3 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.516

8138

\[ {}y^{\prime \prime }-x^{2} y^{\prime }-3 x y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.638

8139

\[ {}\left (-4 x^{2}+1\right ) y^{\prime \prime }-20 x y^{\prime }-16 y = 0 \]

kovacic

[_Gegenbauer]

0.913

8140

\[ {}\left (x^{2}-1\right ) y^{\prime \prime }-6 x y^{\prime }+12 y = 0 \]

kovacic

[_Gegenbauer]

0.802

8141

\[ {}y^{\prime \prime }+x y^{\prime }+\left (2+x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.542

8142

\[ {}\left (2 x^{2}+1\right ) y^{\prime \prime }+7 x y^{\prime }+2 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.645

8143

\[ {}4 y^{\prime \prime }+x y^{\prime }+4 y = 0 \]

kovacic

[_Lienard]

0.57

8144

\[ {}y^{\prime \prime }+x y^{\prime }-4 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.165

8145

\[ {}4 x y^{\prime \prime }-x y^{\prime }+2 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.474

8146

\[ {}6 x^{2} y^{\prime \prime }+x \left (1+18 x \right ) y^{\prime }+\left (1+12 x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.812

8147

\[ {}3 x^{2} y^{\prime \prime }-x \left (x +8\right ) y^{\prime }+6 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

1.006

8148

\[ {}2 x^{2} y^{\prime \prime }-x \left (2 x +1\right ) y^{\prime }+2 \left (4 x -1\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.826

8149

\[ {}4 x^{2} y^{\prime \prime }-4 x^{2} y^{\prime }+\left (2 x +1\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.652

8150

\[ {}x^{2} y^{\prime \prime }+x \left (3-2 x \right ) y^{\prime }+\left (1-2 x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.703

8151

\[ {}x^{2} y^{\prime \prime }-x \left (x +3\right ) y^{\prime }+\left (4-x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.772

8152

\[ {}x^{2} y^{\prime \prime }+x \left (-x +3\right ) y^{\prime }+y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.684

8153

\[ {}x^{2} y^{\prime \prime }-\left (2 \sqrt {5}-1\right ) x y^{\prime }+\left (\frac {19}{4}-3 x^{2}\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.867

8154

\[ {}x^{2} y^{\prime \prime }+x \left (x -3\right ) y^{\prime }+\left (4-x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.64

8155

\[ {}x^{2} y^{\prime \prime }+x^{2} y^{\prime }-\left (2+x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.662

8156

\[ {}x^{2} y^{\prime \prime }+2 x^{2} y^{\prime }+\left (x -\frac {3}{4}\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.658

8157

\[ {}x^{2} \left (1+x \right ) y^{\prime \prime }+x^{2} y^{\prime }-2 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.773

8158

\[ {}x^{2} y^{\prime \prime }+x \left (x^{2}+6\right ) y^{\prime }+6 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.747

8159

\[ {}x^{2} y^{\prime \prime }+x \left (1-x \right ) y^{\prime }-y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.632

8160

\[ {}x^{2} y^{\prime \prime }-x \left (x +3\right ) y^{\prime }+4 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.671

8161

\[ {}x^{2} y^{\prime \prime }-x^{2} y^{\prime }-2 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.648

8162

\[ {}x^{2} y^{\prime \prime }-x^{2} y^{\prime }-\left (3 x +2\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.747

8163

\[ {}x^{2} y^{\prime \prime }+x \left (5-x \right ) y^{\prime }+4 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.723

8164

\[ {}4 x^{2} y^{\prime \prime }+4 x \left (1-x \right ) y^{\prime }+\left (2 x -9\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.696

8165

\[ {}x^{2} y^{\prime \prime }+2 x \left (2+x \right ) y^{\prime }+2 y \left (1+x \right ) = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.487

8166

\[ {}x^{2} y^{\prime \prime }-x \left (1-x \right ) y^{\prime }+\left (1-x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.631

8167

\[ {}4 x^{2} y^{\prime \prime }+4 x \left (2 x +1\right ) y^{\prime }+\left (4 x -1\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.561

8168

\[ {}x^{2} y^{\prime \prime }+x \left (x +4\right ) y^{\prime }+\left (2+x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.462

8169

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-\frac {9}{4}\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.849

8170

\[ {}x y^{\prime \prime }+2 y^{\prime }+x y = 0 \]

kovacic

[_Lienard]

0.471

8171

\[ {}2 x y^{\prime \prime }+5 \left (1-2 x \right ) y^{\prime }-5 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.795

8172

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-\frac {1}{4}\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.523

8173

\[ {}x y^{\prime \prime }+\left (x +n \right ) y^{\prime }+\left (n +1\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.852

8174

\[ {}x^{4} y^{\prime \prime }+x y^{\prime }+y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.549

8175

\[ {}x^{2} y^{\prime \prime }+\left (2 x^{2}+x \right ) y^{\prime }-4 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.7

8176

\[ {}\left (4 x^{3}-14 x^{2}-2 x \right ) y^{\prime \prime }-\left (6 x^{2}-7 x +1\right ) y^{\prime }+\left (6 x -1\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

1.151

8177

\[ {}x^{2} y^{\prime \prime }+x^{2} y^{\prime }+\left (-2+x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.622

8178

\[ {}x^{2} y^{\prime \prime }-x^{2} y^{\prime }+\left (-2+x \right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.612

8179

\[ {}x^{2} \left (1-4 x \right ) y^{\prime \prime }+\left (-\frac {1}{4} x -x^{2}\right ) y^{\prime }-\frac {5 x y}{16} = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

1.464

8180

\[ {}x^{2} y^{\prime \prime }+\left (x^{2}+x \right ) y^{\prime }+\left (x -9\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.752

8181

\[ {}x^{2} y^{\prime \prime }+x \left (1+x \right ) y^{\prime }+\left (3 x -1\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.749

8182

\[ {}x^{2} y^{\prime \prime }-\left (x^{2}+4 x \right ) y^{\prime }+4 y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.651

8183

\[ {}2 x^{2} y^{\prime \prime }-\left (3 x +2\right ) y^{\prime }+\frac {\left (2 x -1\right ) y}{x} = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.609

8184

\[ {}x \left (1-x \right ) y^{\prime \prime }+\left (\frac {3}{2}-2 x \right ) y^{\prime }-\frac {y}{4} = 0 \]

kovacic

[_Jacobi]

0.809

8185

\[ {}2 x \left (1-x \right ) y^{\prime \prime }+x y^{\prime }-y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.503

8186

\[ {}2 x \left (1-x \right ) y^{\prime \prime }+\left (1-11 x \right ) y^{\prime }-10 y = 0 \]

kovacic

[_Jacobi]

0.845

8187

\[ {}x \left (1-x \right ) y^{\prime \prime }+\frac {\left (1-2 x \right ) y^{\prime }}{3}+\frac {20 y}{9} = 0 \]

kovacic

[_Jacobi]

0.86

8188

\[ {}4 y^{\prime \prime }+\frac {3 \left (-x^{2}+2\right ) y}{\left (-x^{2}+1\right )^{2}} = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.835

8189

\[ {}u^{\prime \prime }-\frac {2 u^{\prime }}{x}-a^{2} u = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.751

8190

\[ {}u^{\prime \prime }+\frac {2 u^{\prime }}{x}-a^{2} u = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.53

8191

\[ {}u^{\prime \prime }+\frac {2 u^{\prime }}{x}+a^{2} u = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.523

8192

\[ {}u^{\prime \prime }+\frac {4 u^{\prime }}{x}-a^{2} u = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.704

8193

\[ {}u^{\prime \prime }+\frac {4 u^{\prime }}{x}+a^{2} u = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.891

8194

\[ {}y^{\prime \prime }-a^{2} y = \frac {6 y}{x^{2}} \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.75

8195

\[ {}y^{\prime \prime }+n^{2} y = \frac {6 y}{x^{2}} \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

1.053

8196

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }-\left (x^{2}+\frac {1}{4}\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.55

8197

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }+\frac {\left (-9 a^{2}+4 x^{2}\right ) y}{4 a^{2}} = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.875

8198

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-\frac {25}{4}\right ) y = 0 \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.952

8199

\[ {}y^{\prime \prime }+q y^{\prime } = \frac {2 y}{x^{2}} \]

kovacic

[[_2nd_order, _with_linear_symmetries]]

0.824

8200

\[ {}x y^{\prime \prime }+3 y^{\prime }+4 x^{3} y = 0 \]

kovacic

[[_Emden, _Fowler]]

0.865