TY - BOOK AU - Henrot Antoine TI - Extremum problems for eigenvalues of elliptic operators T2 - Frontiers in mathematics SN - 3764377054 (pbk) U1 - B337-48, P6 TB PY - 2006/// CY - Basel PB - Birkhauser Verlag KW - Elliptic operators KW - Mathematics N1 - Bibliography 187-199p; Index 200-202p ER -