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location Newcastle, Australia
age 33
visits member for 3 years, 2 months
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Feb
22
awarded  Citizen Patrol
Feb
1
awarded  Yearling
Oct
1
awarded  Caucus
Aug
13
awarded  Quorum
Jun
25
awarded  Informed
Jun
11
revised Incremental minimum spanning tree
added 155 characters in body
Jun
4
revised Integer solution to special system of linear equations
added 55 characters in body
Jun
4
revised Integer solution to special system of linear equations
deleted 3 characters in body
Jun
4
answered Integer solution to special system of linear equations
May
26
comment Modern Mathematical Achievements Accessible to Undergraduates
I've updated the link: tau.ac.il/~nogaa/PDFS/null2.pdf should work.
May
26
revised Modern Mathematical Achievements Accessible to Undergraduates
updated link; added 7 characters in body
May
6
answered Modern Mathematical Achievements Accessible to Undergraduates
May
4
revised Incremental minimum spanning tree
added 34 characters in body
May
4
asked Incremental minimum spanning tree
Mar
30
comment Approximation for accumulative set cover
What I mean is to maximize $\lvert S_{\pi(1)}\rvert+\lvert S_{\pi(1)}\cup S_{\pi(2)}\rvert+\lvert S_{\pi(1)}\cup S_{\pi(2)}\cup S_{\pi(3)}\rvert+\cdots$, i.e. a cover of $U$ is built incrementally, and the objective is the sum of the sizes of all the intermediate partial covers. The interesting part is the initial part of $\pi$ until the sets $S_{\pi(1)},\ldots,S_{\pi(k)}$ cover $U$, after which all the terms in the sum are equal to $n$.
Mar
30
revised Approximation for accumulative set cover
edited tags
Mar
30
revised Approximation for accumulative set cover
edited tags; edited title
Mar
30
asked Approximation for accumulative set cover
Feb
1
awarded  Yearling
Nov
20
comment Block design question
Passing to complements and dropping the second condition you have covering designs: ccrwest.org/cover.html