TY  - BOOK
AU  - Han,Qing
AU  - Lin,Fanghua
TI  - Elliptic partial differential equations
T2  - Courant lecture notes
SN  - 9780821853139
U1  - 515.3533 
PY  - 2011///
CY  - Providence
PB  - American Mathematical Society
KW  - Maximum principles
KW  - Partial differential equations
KW  - Harmonic functions
KW  - Viscosity solution
KW  - Weak solution
N1  - Includes bibliographical references
ER  -