On the existence of the solution of Burgers' equation for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="$n \leqslant 4$"><mml:mrow><mml:mi>n</mml:mi><mml:mo>≤</mml:mo><mml:mn>4</mml:mn></mml:mrow></mml:math>
International journal of mathematics and mathematical sciences