Matches in DBpedia 2016-04 for { ?s ?p "In algebraic topology, a Postnikov square is a certain cohomology operation from a first cohomology group H1 to a third cohomology group H3, introduced by Postnikov (1949). Eilenberg (1952) described a generalization taking classes in Ht to H2t+1."@en }
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- Postnikov_square abstract "In algebraic topology, a Postnikov square is a certain cohomology operation from a first cohomology group H1 to a third cohomology group H3, introduced by Postnikov (1949). Eilenberg (1952) described a generalization taking classes in Ht to H2t+1.".
- Q7234407 abstract "In algebraic topology, a Postnikov square is a certain cohomology operation from a first cohomology group H1 to a third cohomology group H3, introduced by Postnikov (1949). Eilenberg (1952) described a generalization taking classes in Ht to H2t+1.".
- Postnikov_square comment "In algebraic topology, a Postnikov square is a certain cohomology operation from a first cohomology group H1 to a third cohomology group H3, introduced by Postnikov (1949). Eilenberg (1952) described a generalization taking classes in Ht to H2t+1.".
- Q7234407 comment "In algebraic topology, a Postnikov square is a certain cohomology operation from a first cohomology group H1 to a third cohomology group H3, introduced by Postnikov (1949). Eilenberg (1952) described a generalization taking classes in Ht to H2t+1.".