New upper bounds for the crossing number of $K_n$ on the Klein bottle
نویسندگان
چکیده
منابع مشابه
On the number of Klein bottle types
Different geometric realizations of topological Klein bottles are discussed and analyzed whether they can be smoothly transformed into one another and thus belong into the same regular homotopy class. Simple and distinct representatives for each of the four expected classes are introduced. In addition, novel and unusual geometries for Klein bottles are presented, some of them knotted, which may...
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ژورنال
عنوان ژورنال: Časopis pro pěstování matematiky
سال: 1978
ISSN: 0528-2195
DOI: 10.21136/cpm.1978.117984