About: Doomsday conjecture

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In algebraic topology, the doomsday conjecture was a conjecture about Ext groups over the Steenrod algebra made by Joel Cohen, named by Michael Barratt, published by , conjecture 73) and disproved by . stated a modified version called the new doomsday conjecture. The original doomsday conjecture was that for any prime p and positive integer s there are only a finite number of permanent cycles in

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dbo:abstract	In algebraic topology, the doomsday conjecture was a conjecture about Ext groups over the Steenrod algebra made by Joel Cohen, named by Michael Barratt, published by , conjecture 73) and disproved by . stated a modified version called the new doomsday conjecture. The original doomsday conjecture was that for any prime p and positive integer s there are only a finite number of permanent cycles in found an infinite number of permanent cycles for p = s = 2, disproving the conjecture. Minami's new doomsday conjecture is a weaker form stating (in the case p = 2) that there are no nontrivial permanent cycles in the image of (Sq0)n for n sufficiently large depending on s. (en)
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rdfs:comment	In algebraic topology, the doomsday conjecture was a conjecture about Ext groups over the Steenrod algebra made by Joel Cohen, named by Michael Barratt, published by , conjecture 73) and disproved by . stated a modified version called the new doomsday conjecture. The original doomsday conjecture was that for any prime p and positive integer s there are only a finite number of permanent cycles in (en)
rdfs:label	Doomsday conjecture (en)
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