2.2.113 Problems 11201 to 11300

Table 2.227: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

11201

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

[[_2nd_order, _with_linear_symmetries]]

0.588

11202

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

[[_2nd_order, _with_linear_symmetries]]

1.428

11203

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

[[_2nd_order, _with_linear_symmetries]]

0.625

11204

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

[[_2nd_order, _with_linear_symmetries]]

1.238

11205

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

[[_2nd_order, _with_linear_symmetries]]

1.218

11206

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

[[_2nd_order, _with_linear_symmetries]]

0.631

11207

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

[[_2nd_order, _with_linear_symmetries]]

1.114

11208

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

[[_2nd_order, _with_linear_symmetries]]

1.490

11209

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

[[_2nd_order, _with_linear_symmetries]]

1.125

11210

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

[[_2nd_order, _with_linear_symmetries]]

1.253

11211

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

[[_2nd_order, _with_linear_symmetries]]

0.369

11212

\[ {}x^{2} y^{\prime \prime }+\left (2 a x +b \right ) x y^{\prime }+\left (a b x +c \,x^{2}+d \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.475

11213

\[ {}x^{2} y^{\prime \prime }+\left (a x +b \right ) y^{\prime } x +\left (\operatorname {a1} \,x^{2}+\operatorname {b1} x +\operatorname {c1} \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

2.265

11214

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

[[_2nd_order, _with_linear_symmetries]]

1.536

11215

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

[[_2nd_order, _with_linear_symmetries]]

1.351

11216

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

[[_2nd_order, _with_linear_symmetries]]

1.412

11217

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

[[_2nd_order, _with_linear_symmetries]]

1.309

11218

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

[[_2nd_order, _with_linear_symmetries]]

0.776

11219

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

[[_2nd_order, _with_linear_symmetries]]

0.791

11220

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

[[_2nd_order, _with_linear_symmetries]]

1.057

11221

\[ {}x^{2} y^{\prime \prime }+\left (a \,x^{n}+b \right ) y^{\prime } x +\left (\operatorname {a1} \,x^{2 n}+\operatorname {b1} \,x^{n}+\operatorname {c1} \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.839

11222

\[ {}x^{2} y^{\prime \prime }+\left (a \,x^{\operatorname {a1}}+b \right ) x y^{\prime }+\left (A \,x^{2 \operatorname {a1}}+B \,x^{\operatorname {a1}}+C \,x^{\operatorname {b1}}+\operatorname {DD} \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.010

11223

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

[[_2nd_order, _with_linear_symmetries]]

2.394

11224

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

[[_2nd_order, _with_linear_symmetries]]

2.573

11225

\[ {}x^{2} y^{\prime \prime }+2 x f \left (x \right ) y^{\prime }+\left (f^{\prime }\left (x \right ) x +f \left (x \right )^{2}-f \left (x \right )+a \,x^{2}+b x +c \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.006

11226

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

[[_2nd_order, _with_linear_symmetries]]

1.013

11227

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

[[_2nd_order, _with_linear_symmetries]]

0.988

11228

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

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

2.572

11229

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

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

1.502

11230

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

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

2.332

11231

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

[[_2nd_order, _with_linear_symmetries]]

2.888

11232

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

[[_2nd_order, _with_linear_symmetries]]

0.954

11233

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

[[_2nd_order, _with_linear_symmetries]]

1.197

11234

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

[[_2nd_order, _with_linear_symmetries]]

2.204

11235

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.684

11236

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.727

11237

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

[_Gegenbauer]

0.525

11238

\[ {}\left (x^{2}-1\right ) y^{\prime \prime }-n \left (n +1\right ) y+\frac {d}{d x}\operatorname {LegendreP}\left (n , x\right ) = 0 \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.638

11239

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

[[_2nd_order, _missing_y]]

1.392

11240

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

[_Gegenbauer, [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

2.956

11241

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

[[_2nd_order, _with_linear_symmetries]]

0.706

11242

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

[[_2nd_order, _missing_y]]

1.079

11243

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

[[_2nd_order, _missing_y]]

2.057

11244

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

[_Gegenbauer]

0.871

11245

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

[_Gegenbauer]

0.928

11246

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

[_Gegenbauer]

630.059

11247

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

[[_2nd_order, _with_linear_symmetries]]

1.704

11248

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

[[_2nd_order, _with_linear_symmetries]]

1.766

11249

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

[_Gegenbauer]

1.275

11250

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

[_Gegenbauer]

1.274

11251

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.763

11252

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

[_Gegenbauer]

2.749

11253

\[ {}\left (x^{2}-1\right ) y^{\prime \prime }+a x y^{\prime }+\left (b \,x^{2}+c x +d \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.225

11254

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

[[_2nd_order, _with_linear_symmetries]]

1.234

11255

\[ {}\left (-a^{2}+x^{2}\right ) y^{\prime \prime }+8 y^{\prime } x +12 y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.181

11256

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

[[_2nd_order, _with_linear_symmetries]]

1.181

11257

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

[[_2nd_order, _with_linear_symmetries]]

1.203

11258

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.324

11259

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

[[_2nd_order, _with_linear_symmetries]]

1.502

11260

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.424

11261

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

[_Jacobi]

0.895

11262

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

[[_2nd_order, _missing_y]]

1.326

11263

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

[_Jacobi]

1.305

11264

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

[_Jacobi]

1.319

11265

\[ {}x \left (x -1\right ) y^{\prime \prime }+\left (\left (\operatorname {a1} +\operatorname {b1} +1\right ) x -\operatorname {d1} \right ) y^{\prime }+\operatorname {a1} \operatorname {b1} \operatorname {d1} = 0 \]

[[_2nd_order, _missing_y]]

1.332

11266

\[ {}x \left (x +2\right ) y^{\prime \prime }+2 \left (n +1+\left (n +1-2 l \right ) x -l \,x^{2}\right ) y^{\prime }+\left (2 l \left (p -n -1\right ) x +2 p l +m \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.473

11267

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

[[_2nd_order, _with_linear_symmetries]]

1.725

11268

\[ {}x \left (x +3\right ) y^{\prime \prime }+\left (3 x -1\right ) y^{\prime }+y-\left (20 x +30\right ) \left (x^{2}+3 x \right )^{{7}/{3}} = 0 \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

2.898

11269

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

[[_2nd_order, _with_linear_symmetries]]

1.655

11270

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

[[_2nd_order, _with_linear_symmetries]]

290.934

11271

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.078

11272

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.852

11273

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

[_Jacobi]

0.700

11274

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

[_Jacobi]

1.108

11275

\[ {}\left (2 x^{2}+6 x +4\right ) y^{\prime \prime }+\left (10 x^{2}+21 x +8\right ) y^{\prime }+\left (12 x^{2}+17 x +8\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

2.419

11276

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

[[_Emden, _Fowler]]

0.747

11277

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

[[_2nd_order, _with_linear_symmetries]]

0.924

11278

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

[[_2nd_order, _with_linear_symmetries]]

0.602

11279

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

[[_2nd_order, _with_linear_symmetries]]

0.796

11280

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

[[_2nd_order, _with_linear_symmetries]]

0.872

11281

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.819

11282

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

[[_2nd_order, _with_linear_symmetries]]

3.257

11283

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

[[_2nd_order, _with_linear_symmetries]]

0.456

11284

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

[[_2nd_order, _with_linear_symmetries]]

1.943

11285

\[ {}4 x^{2} y^{\prime \prime }+8 y^{\prime } x -\left (4 x^{2}+12 x +3\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.385

11286

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

[[_2nd_order, _with_linear_symmetries]]

0.972

11287

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

[[_2nd_order, _with_linear_symmetries]]

0.888

11288

\[ {}4 x^{2} y^{\prime \prime }+4 x^{2} \ln \left (x \right ) y^{\prime }+\left (x^{2} \ln \left (x \right )^{2}+2 x -8\right ) y-4 x^{2} \sqrt {{\mathrm e}^{x} x^{-x}} = 0 \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.498

11289

\[ {}\left (2 x +1\right )^{2} y^{\prime \prime }-2 \left (2 x +1\right ) y^{\prime }-12 y-3 x -1 = 0 \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.429

11290

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

[[_2nd_order, _with_linear_symmetries]]

1.176

11291

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

2.906

11292

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

[_Jacobi]

1.425

11293

\[ {}16 x^{2} y^{\prime \prime }+\left (4 x +3\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

2.308

11294

\[ {}16 x^{2} y^{\prime \prime }+32 y^{\prime } x -\left (4 x +5\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

4.508

11295

\[ {}\left (27 x^{2}+4\right ) y^{\prime \prime }+27 y^{\prime } x -3 y = 0 \]

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

2.131

11296

\[ {}48 x \left (x -1\right ) y^{\prime \prime }+\left (152 x -40\right ) y^{\prime }+53 y = 0 \]

[_Jacobi]

1.283

11297

\[ {}50 x \left (x -1\right ) y^{\prime \prime }+25 \left (2 x -1\right ) y^{\prime }-2 y = 0 \]

[_Jacobi, [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

2.906

11298

\[ {}144 x \left (x -1\right ) y^{\prime \prime }+\left (120 x -48\right ) y^{\prime }+y = 0 \]

[_Jacobi]

1.112

11299

\[ {}144 x \left (x -1\right ) y^{\prime \prime }+\left (168 x -96\right ) y^{\prime }+y = 0 \]

[_Jacobi]

0.934

11300

\[ {}a \,x^{2} y^{\prime \prime }+b x y^{\prime }+\left (c \,x^{2}+d x +f \right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.923