在這論文中我們討論了一些關於 Waldschmidt constant 的結果。其中一個主要的結果是Nagata/Iarrobino猜想與Demailly猜想之間的關係：在 Pn上隨意選取的點夠大時，在前者的猜想假設下後者成立。另外我們也把參考文獻[14]裡的主要定理做一個改良。

In this note, we discuss some results about Waldschmidt constant. One of the main results presents a relation between Nagata/Iarrobino Conjecture and Demailly Conjecture: the former implies the latter, for large enough number of general points in Pn, n ≥ 2. In addition, we also present an improvement of the main theorem in [14].

1 Introduction---------------------------------------------------1
2 Preliminary----------------------------------------------------2
3 Some containment problems between symbolic and ordinary powers-6
4 A Lower bound of Waldschmidt constant related to the number of
general points-------------------------------------------------8
5 Proof of Theorem 1.2------------------------------------------12
6 Proof of Theorem 1.3------------------------------------------16
Reference-------------------------------------------------------18

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