We study a superminimal surface M immersed into a hyperquadric Q2 in several cases classified by two global defined func......

设X是光滑的n维射影簇，E是X上的丰富向量丛，E的秩r〈n．如果E在X上的数字有效值为n/r，且X的皮卡数1，则X是超二次曲面Q^n，E是线丛OQ^n（1）的直......