ESSENTIAL AND NON ESSENTIAL FIXED POINTS

[1] FORT MK, 1949, DUKE MATH J, V16, P237

[2] Hurewicz W., 1941, PRINCETON MATH SERIE, V4

[3] TRANSFORMATIONS IN METRIC SPACES AND ORDINARY DIFFERENTIAL EQUATIONS [J]. BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1945, 51 (02) : 113 - 119

[1] FORT MK, 1949, DUKE MATH J, V16, P237

[2] Hurewicz W., 1941, PRINCETON MATH SERIE, V4

[3] TRANSFORMATIONS IN METRIC SPACES AND ORDINARY DIFFERENTIAL EQUATIONS [J]. BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1945, 51 (02) : 113 - 119