Decomposability of quotients by complex conjugation for rational and Enriques surfaces
Abstract
Description
The quotients $Y=X/conj$ by the complex conjugation $conj\: X\to X$ for complex rational and Enriques surfaces $X$ defined over $\R$ are shown to be diffeomorphic to connected sums of $\barCP2$, whenever $Y$ are simply connected.
7 pages, AMS-TeX, 2 hand-written figures available by request
7 pages, AMS-TeX, 2 hand-written figures available by request