کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8897380 | 1630739 | 2018 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the rigidity of moduli of weighted pointed stable curves
ترجمه فارسی عنوان
در استحکام ماژول منحنی های پایدار وزن اشاره شده است
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
اعداد جبر و تئوری
چکیده انگلیسی
Let Mâ¾g,A[n] be the Hassett moduli stack of weighted stable curves, and let Mâ¾g,A[n] be its coarse moduli space. These are compactifications of Mg,n and Mg,n respectively, obtained by assigning rational weights A=(a1,...,an), 04 then the coarse moduli space Mâ¾g,A[n] is rigid over an algebraically closed field of characteristic zero. Finally, we take into account a degeneration of Hassett spaces parametrizing rational curves obtained by allowing the weights to have sum equal to two. In particular, we consider such a Hassett 3-fold which is isomorphic to the Segre cubic hypersurface in P4, and we prove that its family of first order infinitesimal deformations is non-singular of dimension ten, and the general deformation is smooth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pure and Applied Algebra - Volume 222, Issue 10, October 2018, Pages 3058-3074
Journal: Journal of Pure and Applied Algebra - Volume 222, Issue 10, October 2018, Pages 3058-3074
نویسندگان
Barbara Fantechi, Alex Massarenti,