61.22.34 problem 34
Internal
problem
ID
[12359]
Book
:
Handbook
of
exact
solutions
for
ordinary
differential
equations.
By
Polyanin
and
Zaitsev.
Second
edition
Section
:
Chapter
1,
section
1.3.
Abel
Equations
of
the
Second
Kind.
subsection
1.3.1-2.
Solvable
equations
and
their
solutions
Problem
number
:
34
Date
solved
:
Tuesday, January 28, 2025 at 07:56:18 PM
CAS
classification
:
[_rational, [_Abel, `2nd type`, `class B`]]
\begin{align*} y^{\prime } y-y&=A \left (n +2\right ) \left (\sqrt {x}+2 \left (n +2\right ) A +\frac {\left (n +1\right ) \left (n +3\right ) A^{2}}{\sqrt {x}}\right ) \end{align*}
✓ Solution by Maple
Time used: 0.003 (sec). Leaf size: 410
dsolve(y(x)*diff(y(x),x)-y(x)=A*(n+2)*(x^(1/2)+2*(n+2)*A+(n+1)*(n+3)*A^2*x^(-1/2)),y(x), singsol=all)
\[
\frac {\left (\operatorname {BesselI}\left (\frac {n +3}{n +2}, -\sqrt {\frac {2 \left (n +2\right ) A \sqrt {x}+A^{2} \left (n^{2}+4 n +3\right )+x -y}{\left (n +2\right )^{2} A^{2}}}\right ) c_{1} +\operatorname {BesselK}\left (\frac {n +3}{n +2}, -\sqrt {\frac {2 \left (n +2\right ) A \sqrt {x}+A^{2} \left (n^{2}+4 n +3\right )+x -y}{\left (n +2\right )^{2} A^{2}}}\right )\right ) \left (n +2\right ) A \sqrt {\frac {2 \left (n +2\right ) A \sqrt {x}+A^{2} \left (n^{2}+4 n +3\right )+x -y}{\left (n +2\right )^{2} A^{2}}}-\left (\sqrt {x}+\left (n +1\right ) A \right ) \left (-c_{1} \operatorname {BesselI}\left (\frac {1}{n +2}, -\sqrt {\frac {2 \left (n +2\right ) A \sqrt {x}+A^{2} \left (n^{2}+4 n +3\right )+x -y}{\left (n +2\right )^{2} A^{2}}}\right )+\operatorname {BesselK}\left (\frac {1}{n +2}, -\sqrt {\frac {2 \left (n +2\right ) A \sqrt {x}+A^{2} \left (n^{2}+4 n +3\right )+x -y}{\left (n +2\right )^{2} A^{2}}}\right )\right )}{A \sqrt {\frac {2 \left (n +2\right ) A \sqrt {x}+A^{2} \left (n^{2}+4 n +3\right )+x -y}{\left (n +2\right )^{2} A^{2}}}\, \left (n +2\right ) \operatorname {BesselI}\left (\frac {n +3}{n +2}, -\sqrt {\frac {2 \left (n +2\right ) A \sqrt {x}+A^{2} \left (n^{2}+4 n +3\right )+x -y}{\left (n +2\right )^{2} A^{2}}}\right )+\left (\sqrt {x}+\left (n +1\right ) A \right ) \operatorname {BesselI}\left (\frac {1}{n +2}, -\sqrt {\frac {2 \left (n +2\right ) A \sqrt {x}+A^{2} \left (n^{2}+4 n +3\right )+x -y}{\left (n +2\right )^{2} A^{2}}}\right )} = 0
\]
✗ Solution by Mathematica
Time used: 0.000 (sec). Leaf size: 0
DSolve[y[x]*D[y[x],x]-y[x]==A*(n+2)*(x^(1/2)+2*(n+2)*A+(n+1)*(n+3)*A^2*x^(-1/2)),y[x],x,IncludeSingularSolutions -> True]
Not solved