Contractibly embedded $2$-spheres in $S\sp{2}\times S\sp{2}$
نویسندگان
چکیده
منابع مشابه
Effectiveness for Embedded Spheres and Balls
We consider arbitrary dimensional spheres and closed balls embedded in Rn as Π1 classes. Such a strong restriction on the topology of a Π1 class has computability theoretic repercussions. Algebraic topology plays a crucial role in our exploration of these consequences; the use of homology chains as computational objects allows us to take algorithmic advantage of the topological structure of our...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1982
ISSN: 0002-9939
DOI: 10.1090/s0002-9939-1982-0652458-x