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Jun 15, 2020 at 7:27 history edited CommunityBot
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Mar 22, 2019 at 12:59 history edited Mare CC BY-SA 4.0
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Mar 17, 2019 at 18:50 answer added esg timeline score: 2
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Mar 5, 2019 at 19:25 history edited Mare CC BY-SA 4.0
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Mar 5, 2019 at 19:05 history edited Mare CC BY-SA 4.0
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Mar 5, 2019 at 17:14 answer added Gerhard Paseman timeline score: 2
Mar 5, 2019 at 16:54 comment added Gerhard Paseman In fact, one can extend this: Say kw=3n, so I can pick k rows, do row addition, and transform A to a matrix with one row being all 3's. Then A will have a determinant which is 0 mod 3. Because A is cyclic, if BC has fewer than n/k ones, the same will be true of det A-BC. This may help with some of your computations. Gerhard "Just Stay Away From K" Paseman, 2019.03.05.
Mar 5, 2019 at 16:15 comment added Gerhard Paseman For w and n having a sufficiently large common divisor, A has determinant 0. If BC is sparse enough, A-BC will also have determinant 0. Can you say how many ones BC will have? Gerhard ""Hopefully Providing A Useful Fact" Paseman, 2019.03.05.
Mar 5, 2019 at 15:19 history edited Mare CC BY-SA 4.0
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Mar 4, 2019 at 13:39 history edited Mare CC BY-SA 4.0
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Mar 3, 2019 at 17:50 history edited Mare
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Mar 3, 2019 at 16:53 history edited Mare CC BY-SA 4.0
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Mar 3, 2019 at 15:26 history edited Mare CC BY-SA 4.0
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Mar 3, 2019 at 15:16 history asked Mare CC BY-SA 4.0