On Lambda-Convexity Conditions in the Theory of Lower Semicontinuous Functionals
<jats:p> Consider the functional <jats:inline-formula> <jats:alternatives> <jats:tex-math notation="LaTeX">I_f(u)=\int_\Omega f(u(x))\, dx</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML...