Internal
problem
ID
[13868]
Book
:
Handbook
of
exact
solutions
for
ordinary
differential
equations.
By
Polyanin
and
Zaitsev.
Second
edition
Section
:
Chapter
2,
Second-Order
Differential
Equations.
section
2.1.2-6
Problem
number
:
208
Date
solved
:
Friday, December 19, 2025 at 05:54:39 PM
CAS
classification
:
[[_2nd_order, _with_linear_symmetries]]
ode:=(a*x^3+b*x^2+c*x+d)*diff(diff(y(x),x),x)+(alpha*x^2+(alpha*gamma+beta)*x+beta*lambda)*diff(y(x),x)-(alpha*x+beta)*y(x) = 0; dsolve(ode,y(x), singsol=all);
Maple trace
Methods for second order ODEs: --- Trying classification methods --- trying a quadrature checking if the LODE has constant coefficients checking if the LODE is of Euler type trying a symmetry of the form [xi=0, eta=F(x)] checking if the LODE is missing y -> Trying a Liouvillian solution using Kovacics algorithm <- No Liouvillian solutions exists -> Trying a solution in terms of special functions: -> Bessel -> elliptic -> Legendre -> Kummer -> hyper3: Equivalence to 1F1 under a power @ Moebius -> hypergeometric -> heuristic approach -> hyper3: Equivalence to 2F1, 1F1 or 0F1 under a power @ Moebius -> Mathieu -> Equivalence to the rational form of Mathieu ODE under a power @ Moebi\ us trying a solution in terms of MeijerG functions -> Heun: Equivalence to the GHE or one of its 4 confluent cases under a power \ @ Moebius -> trying a solution of the form r0(x) * Y + r1(x) * Y where Y = exp(int(r(x),\ dx)) * 2F1([a1, a2], [b1], f) trying a symmetry of the form [xi=0, eta=F(x)] trying differential order: 2; exact nonlinear trying symmetries linear in x and y(x) trying to convert to a linear ODE with constant coefficients trying 2nd order, integrating factor of the form mu(x,y) -> Trying a solution in terms of special functions: -> Bessel -> elliptic -> Legendre -> Whittaker -> hyper3: Equivalence to 1F1 under a power @ Moebius -> hypergeometric -> heuristic approach -> hyper3: Equivalence to 2F1, 1F1 or 0F1 under a power @ Moebius -> Mathieu -> Equivalence to the rational form of Mathieu ODE under a power @ Mo\ ebius trying 2nd order exact linear trying symmetries linear in x and y(x) trying to convert to a linear ODE with constant coefficients trying to convert to an ODE of Bessel type trying to convert to an ODE of Bessel type -> trying reduction of order to Riccati trying Riccati sub-methods: -> trying a symmetry pattern of the form [F(x)*G(y), 0] -> trying a symmetry pattern of the form [0, F(x)*G(y)] -> trying a symmetry pattern of the form [F(x),G(x)*y+H(x)] --- Trying Lie symmetry methods, 2nd order --- -> Computing symmetries using: way = 3 [0, y] <- successful computation of symmetries. -> Computing symmetries using: way = 5
ode=(a*x^3+b*x^2+c*x+d)*D[y[x],{x,2}]+(\[Alpha]*x^2+(\[Alpha]*\[Gamma]+\[Beta])*x+\[Beta]*\[Lambda])*D[y[x],x]-(\[Alpha]*x+\[Beta])*y[x]==0; ic={}; DSolve[{ode,ic},y[x],x,IncludeSingularSolutions->True]
Timed out
from sympy import * x = symbols("x") Alpha = symbols("Alpha") BETA = symbols("BETA") Gamma = symbols("Gamma") a = symbols("a") b = symbols("b") c = symbols("c") d = symbols("d") lambda_ = symbols("lambda_") y = Function("y") ode = Eq((-Alpha*x - BETA)*y(x) + (Alpha*x**2 + BETA*lambda_ + x*(Alpha*Gamma + BETA))*Derivative(y(x), x) + (a*x**3 + b*x**2 + c*x + d)*Derivative(y(x), (x, 2)),0) ics = {} dsolve(ode,func=y(x),ics=ics)
False
Python version: 3.12.3 (main, Aug 14 2025, 17:47:21) [GCC 13.3.0] Sympy version 1.14.0
classify_ode(ode,func=y(x)) ('factorable', '2nd_power_series_ordinary')