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S Sep 25, 2013 at 13:28 history suggested Turbo
From the OP's comment, the problem looks like it has relations to One way functions in Cryptography
Sep 25, 2013 at 13:24 review Suggested edits
S Sep 25, 2013 at 13:28
Sep 25, 2013 at 13:10 comment added Turbo Could you explain what is the exact relation? I tried reading Levin's paper and I could not understands the tiling expansion problem clearly.
Sep 17, 2010 at 18:27 comment added Steve Huntsman I just realized that this is likely to be very hard indeed, as it appears related to Levin's universal one-way "tiling expansion" function. See arxiv.org/abs/cs.CR/0012023
Jan 5, 2010 at 0:43 history edited Steve Huntsman CC BY-SA 2.5
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Jan 5, 2010 at 0:31 history edited Steve Huntsman CC BY-SA 2.5
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Jan 5, 2010 at 0:20 history asked Steve Huntsman CC BY-SA 2.5