Electronic Journal of Differential Equations, Vol. 2012 (2012), No. 201, pp. 1-26. Title: Existence of solutions to singular fractional differential systems with impulses Authors: Xingyuan Liu (Shaoyang Univ., China) Yuji Liu (Guangdong Univ. of Business Studies, China) Abstract: By constructing a weighted Banach space and a completely continuous operator, we establish the existence of solutions for singular fractional differential systems with impulses. Our results are proved using the Leray-Schauder nonlinear alternative, and are illustrated with examples. Submitted March 14, 2012. Published November 15, 2012. Math Subject Classifications: 92D25, 34A37, 34K15. Key Words: Solution; singular fractional differential system; impulsive boundary value problems; Leray-Schauder nonlinear alternative.