%0 Journal Article %A Goodrich, Christopher S. %T Summation equations with sign changing kernels and applications to discrete fractional boundary value problems %J Commentationes Mathematicae Universitatis Carolinae %D 2016 %P 201-229 %V 57 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.164/ %R 10.14712/1213-7243.2015.164 %G en %F 10_14712_1213_7243_2015_164