Nice and lazy cell attachments
نویسندگان
چکیده
منابع مشابه
Free and Semi-inert Cell Attachments
Let Y be the space obtained by attaching a finite-type wedge of cells to a simply-connected, finite-type CW-complex. We introduce the free and semi-inert conditions on the attaching map which broadly generalize the previously studied inert condition. Under these conditions we determine H∗(ΩY ;R) as an R-module and as an R-algebra respectively. Under a further condition we show that H∗(ΩY ;R) is...
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Given a space X let LX denote its rational homotopy Lie algebra π∗(ΩX) ⊗ Q. A cell attachment f : ∨iSi → X is said to be free if the Lie ideal in LX generated by f is a free Lie algebra. This condition is shown to be general in the following sense. Given a space X with rational cone length N , then X is rationally homotopy equivalent to a space constructed using at most N + 1 free cell attachme...
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products have as strong a scientific basis as possible, giving governments and the public confidence in the findings and projections,” he said. The review is expected to report in August. While the science now appears to be getting back on track, in a new article in the Proceedings of the National Academy of Science (published online) researchers believe lessons from the Montreal Protocol could...
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ژورنال
عنوان ژورنال: Journal of Pure and Applied Algebra
سال: 1996
ISSN: 0022-4049
DOI: 10.1016/0022-4049(95)00131-x