Fiber cones of rational normal scrolls are Cohen–Macaulay
نویسندگان
چکیده
In this paper, we show that the fiber cones of rational normal scrolls are Cohen–Macaulay. As an application, compute their Castelnuovo–Mumford regularities and $$\varvec{a}$$ -invariants, as well reduction number defining ideals scrolls. We also characterize Gorensteinness cone.
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ژورنال
عنوان ژورنال: Journal of Algebraic Combinatorics
سال: 2022
ISSN: ['0925-9899', '1572-9192']
DOI: https://doi.org/10.1007/s10801-022-01123-4