On the solutions of the universal differential equation with three regular singularities (On solutions of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>K</mml:mi><mml:msub><mml:mi>Z</mml:mi> <mml:mn>3</mml:mn> </mml:msub></mml:mrow></mml:math>)
Confluentes mathematici