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 Volume 10, Number 1, 2020, Pages 131-139 Infinitely many solutions for critical fractional equation with sign-changing weight function Wei Chen,Chunlei Tang Keywords:Fractional Schrodinger equations, critical exponent, sign-changing weight function, symmetric Mountain Pass Theorem. Abstract: In this work, we consider the fractional Schrodinger type equations with critical exponent, concave nonlinearity and sign-changing weight function on $\mathbb{R}^N$. With the aid of the symmetric Mountain Pass Theorem, we prove this problem has infinitely many small energy solutions. PDF      Download reader