Jun Lu

Member for 14 years, 8 months
Last seen more than 9 years ago

faculty.ecnu.edu.cn/lujun1/…

Network profile

Summary

Reputation

471

471
451
431

2021
2022
2023
2024

Top tag

ag.algebraic-geometry

Next privilege

500 Rep.

Access review queues

Badges

2

12

Newest

Popular Question

Next badge

0/1

Supporter

Impact

~9k

people reached

0

posts edited

0

helpful flags

0

votes cast

Questions

View all 10 questions

13

How to compute the Picard-Lefschetz monodromy matrix of a non-semistable fiber?

Apr 2, 2010

11

How to get a Dehn-twist presentation of a periodic map of a Riemann surface?

Jul 5, 2010

5

What is the definition of ideal boundary?

May 31, 2010

4

Why do the subgroups of $Hdg^{2k}(X)$ generated by the cycle classes and Chern classes of vector bundles coincide in algebraic variety $X$?

Jul 12, 2011

3

Why $\pi_1(X)\cong \pi_1(Y)$ for a double cover $\pi:X\to Y$ with a nef, smooth and big branch locus?

Oct 27, 2012

Answers

2

Global sections of a linear system

Jul 12, 2011

2

Monodromy group of 1-dimensional families of hyperelliptic curves

Nov 19, 2012

Tags

View all 16 tags

ag.algebraic-geometry

4

Score

11

posts

algebraic-surfaces

2

Score

1

post

divisors

2

Score

1

post

birational-geometry

2

Score

1

post

complex-geometry

2

Score

1

post

Reputation

This user has no recent positive reputation changes.

Badges

View all badges

This user doesn’t have any gold badges yet.

2

silver badges

Yearling

× 2

Nov 13, 2019

12

bronze badges

Tumbleweed

Apr 6, 2015
Curious

Jul 2, 2014
Teacher

Jul 12, 2011

Accounts

471
2
12

Active bounties (0)

This user has no active bounties

Votes cast

This user has not cast any votes