Li, Zi-Cai, 1939- Numerical methods for elliptic problems with singularities : boundary methods and nonconforming combinations / Zi Cai Li. - Singapore ; Teaneck, NJ : World Scientific, 1990. - xv, 258 p. ISBN: 981020292X LCCN: 91065032 Subjects--Topical Terms: Differential equations, Elliptic--Numerical solutions.Singularities (Mathematics)