共 8 条
[2]
CHANDRASEKHAR S, 1947, B AM MATH SOC, V53, P647
[3]
Collatz L., 1968, FUNKTIONALANALYSIS N
[5]
Protter Murray H., 1984, MAXIMUM PRINCIPLES D, DOI [10.1007/978-1-4612-5282-5, DOI 10.1007/978-1-4612-5282-5]
[6]
SCHRODER J, 1960, ARCH RATIONAL MACH A, V4, P177
[7]
SPREKELS J, UNPUBLISHED
[8]
WERNER B, 1975, ISNM, V27, P309