Hsien-Chih Chang

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Name Hsien-Chih Chang
Member for 3 years
Seen May 8 at 18:16
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Location Taiwan
Age 26
Ex-student in Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan. Currently doing free researches and preparing for admissions.
7

Questions
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11
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Finding a cycle of fixed length

feb 23 11 at 1:40 Tony Huynh 8,863●1●22●62

 
9
votes
3
answers
374
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Equality of the sum of powers

mar 1 10 at 22:26 Bjorn Poonen 14.2k●2●47●75

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1

 

 

 

 

7

Answers
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43
What are your favorite instructional counterexamples?
22
Is there a 7-regular graph on 50 vertices with girth 5? What about 57-regular on 3250 vertices?
12
Suggestions for good notation
9
Existence of a zero-sum subset
5
Most memorable titles
4
An approximate algorithm for finding Steiner Forest in a graph.
1
Finding a subgraph with slightly large size in planar graphs

 

1036

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1035
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