OpenAlex | Existence of least energy positive, negative and nodal solutions for a class of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>p</mml:mi><mml:mtext>&</mml:mtext><mml:mi>q</mml:mi></mml:math>-problems with potentials vanishing at infinity

Existence of least energy positive, negative and nodal solutions for a class ofp&q-problems with potentials vanishing at infinity