Weakly-Einstein Hermitian surfaces

Citation
V. Apostolov et O. Muskarov, Weakly-Einstein Hermitian surfaces, ANN I FOUR, 49(5), 1999, pp. 1673
Citations number
35
Categorie Soggetti
Mathematics
Journal title
ANNALES DE L INSTITUT FOURIER
ISSN journal
03730956 → ACNP
Volume
49
Issue
5
Year of publication
1999
Database
ISI
SICI code
0373-0956(1999)49:5<1673:WHS>2.0.ZU;2-J
Abstract
A consequence of the Riemannian Goldberg-Sachs theorem is the fact that the Kahler form of an Einstein Hermitian surface is an eigenform of the curvat ure operator. Referring to this property as *-Einstein condition we obtain a complete classification of the compact locally homogeneous *-Einstein Her mitian surfaces. We also provide large families of non-homogeneous *-Einste in (but non-Einstein) Hermitian metrics on CP2#<(CP)over bar>(2), CP1 x CP1 , and on the product surface X x Y of two curves X and Y whose genuses are greater than 1 and 0, respectively.