A result on the bifurcation from the principal eigenvalue of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="$A_p$"><mml:mrow><mml:msub><mml:mi>A</mml:mi><mml:mi>p</mml:mi></mml:msub></mml:mrow></mml:math>-Laplacian
Abstract and applied analysis