Cubic ruled surfaces with constant distribution parameter in .
Röschel, Otto (2009)
Beiträge zur Algebra und Geometrie
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Röschel, Otto (2009)
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Ronald van Luijk (2011)
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Andrew Bremner (1988)
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Alexander Degtyarev, Vlatcheslav Kharlamov (1997)
Revista Matemática de la Universidad Complutense de Madrid
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We present a brief overview of the classification of real Enriques surfaces completed recently and make an attempt to systemize the known classification results for other special types of surfaces. Emphasis is also given to the particular tools used and to the general phenomena discovered; in particular, we prove two new congruence type prohibitions on the Euler characteristic of the real part of a real algebraic surface.
Zhenbo Qin, Robert Friedman (1995)
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Zhenbo Qin (1993)
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Bertolini, Marina, Turrini, Cristina (1998)
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Georges Dloussky (2014)
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For any minimal compact complex surface S with n = b2(S) > 0 containing global spherical shells (GSS) we study the effectiveness of the 2n parameters given by the n blown up points. There exists a family of surfaces S → B with GSS which contains as fibers S, some Inoue-Hirzebruch surface and non minimal surfaces, such that blown up points are generically effective parameters. These families are versal outside a non empty hypersurface T ⊂ B. We deduce that, for any configuration of...