On the first eigenvalue of non-orientable closed surfaces
نویسندگان
چکیده
منابع مشابه
Immersions of Non-orientable Surfaces
Let F be a closed non-orientable surface. We classify all finite order invariants of immersions of F into R, with values in any Abelian group. We show they are all functions of the universal order 1 invariant that we construct as T ⊕ P ⊕Q where T is a Z valued invariant reflecting the number of triple points of the immersion, and P,Q are Z/2 valued invariants characterized by the property that ...
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ژورنال
عنوان ژورنال: Tsukuba Journal of Mathematics
سال: 1998
ISSN: 0387-4982
DOI: 10.21099/tkbjm/1496163676