دورية أكاديمية

Abel-Jacobi map and curvature of the pulled back metric.

التفاصيل البيبلوغرافية
العنوان: Abel-Jacobi map and curvature of the pulled back metric.
المؤلفون: Biswas, Indranil
المصدر: Bulletin of Mathematical Sciences (World Scientific); Apr2021, Vol. 11 Issue 1, p1-7, 7p
مصطلحات موضوعية: JACOBI series, HYPERELLIPTIC integrals, RIEMANN surfaces, MATHEMATICAL models, MATHEMATICAL analysis
مستخلص: Let X be a compact connected Riemann surface of genus at least two. The Abel-Jacobi map ϕ: Symd(X)→Picd(X) is an embedding if d is less than the gonality of X. We investigate the curvature of the pull-back, by ϕ, of the flat metric on Picd(X). In particular, we show that when d = 1, the curvature is strictly negative everywhere if X is not hyperelliptic, and when X is hyperelliptic, the curvature is nonpositive with vanishing exactly on the points of X fixed by the hyperelliptic involution. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
الوصف
تدمد:16643607
DOI:10.1142/S1664360720500149