GEOMETRIC PROPERTIES OF AMPLE INVERTIBLE SHEAVES ON EXCEPTIONAL LOCI
Keywords:
Y\mathcal{Y}Y-singularity, Exceptional locus, Irreducible components, Invertible sheaves, Kleiman's CriterionAbstract
This paper addresses the resolution of X\mathcal{X}X-dimensional Y\mathcal{Y}Y-singularity, focusing on the exceptional locus E\mathcal{E}E, where E\mathcal{E}E comprises irreducible components Ei\mathcal{E}_iEi isomorphic to Pn\mathbb{P}^nPn. These components are examined as invertible sheaves. The study investigates the conditions under which these sheaves are ample, utilizing Kleiman's Criterion (Kleiman, 1966) as a foundational tool. By applying this criterion, we determine the necessary and sufficient conditions for ampleness, offering insights into the geometric properties of the exceptional locus and contributing to the broader understanding of Y\mathcal{Y}Y-singularities and their resolutions
Published
How to Cite
Issue
Section
Copyright (c) 2024 International Journal of Interdisciplinary Research in Statistics, Mathematics and Engineering (IJIRSME)
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
References
Alwadi Y, Dgheim B (1988). "Divisor Class Groups of some 3dimensional Singularities" Humboldt University –Berlin Preprint No. 194.
Alexiou D, Alwadi Y (2003). “Description of the canonical resolutions of the -singularities” Far East. J. Math. Sci., (FJMS).
Fulton W (2008). “Algebraic Curves” WA Benjamin, INC. Advanced Book Program.
Hartshorne R (1977). “Algebraic Geometry” Springer-Verlag.
Kleiman SL (1966). “Toward a numerical theory of ampleness” Ann. Math., 84: 293 – 344.
Lazarsfeld R (2005). “Positivity in Algebraic Geometry I & II” Springer Berlin –Heidelberg NewYork.
Roczen M (1984). “Some properties of the 3-dimensional ADE singularities over a field of characteristic ” LNM 1056 Springer-Verlag, pp. 297 – 365.