REAL THETA CHARACTERISTICS AND AUTOMORPHISMS OF A REAL CURVE
نویسندگان
چکیده
منابع مشابه
Real Theta Characteristics and Automorphisms of a Real Curve
Let X be a geometrically irreducible smooth projective curve, defined over R, of genus at least two that admits nontrivial automorphisms. Fix a nontrivial automorphism σ of X. Assume that X does not have any real points. Then σ acts trivially on the set of all real theta characteristics of X if and only if X is hyperelliptic with σ being the unique hyperelliptic involution of X. Examples are gi...
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ژورنال
عنوان ژورنال: Journal of the Australian Mathematical Society
سال: 2010
ISSN: 1446-7887,1446-8107
DOI: 10.1017/s1446788709000305