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研究生: 周亭言
Chou, Ting-Yen.
論文名稱: Connectedness Theorem 的一些應用
Some Application of The Connectedness Theorem
指導教授: 卓士堯
Jow, Shin-Yao
口試委員: 潘戍衍
Pan, Shu-Yen
蔡孟傑
Chuah, Meng-Kiat
學位類別: 碩士
Master
系所名稱: 理學院 - 數學系
Department of Mathematics
論文出版年: 2019
畢業學年度: 107
語文別: 英文
論文頁數: 6
中文關鍵詞: 連通連通定理代數幾何
外文關鍵詞: connected, connectedness theorem, algebraic goemetry
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  • 在這篇論文中,我們研究代數幾何中的線性反影像,並用來證明一些結果:給定兩個閉的射影曲體,當它們維度足夠大的時候,則它們的交集會是連通的,且其中一個會是單連通。


    In this paper,We study the linear section in algebraic geometry and apply it to prove some results:If X and Y are closed irreducible subvarieties of projective space,and they have sufficiently large dimension, then one has X ∩ Y is connected and X is simply connected.

    Introduction 0. Notation and Preliminary Facts --------------------- 1 1. Linear Sections ------------------------------------ 1 2. The Connectedness Theorem -------------------------- 3 3. Closed Subvarieties of Projective Space ------------ 5 References

    1. P. Deligne, Le groupe fondamental du complément d'une courbe plane n'ayant que des points doubles ordinaires est abélien, Séminaire Bourbaki, n◦543, Nov. 1979.

    2. J. P. Jouanolou, Théoremes de Bertini et applications, Series de Mathématiques Pures et Appliquées, I.R.M.A. Strasbourg, 1979.

    3. A. Grothendieck and J. Dieudonné, Eléments de Géométrie Algébrique, Publ. Math. IHES 4, 8, 17, 1960-67.

    4. William Fulton* and Robert Lazarsfeld, Connectivity and its applications in algebraic geometry, Algebraic Geometry (Chicago, Ill., 1980), Lecture Notes in Math. vol. 862, Springer, 1981, pp. 2648.

    5. János Kollár and John Pardon, Algebraic varieties with semialgebraic universal cover, lecture notes on the webpage of the author.

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