Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Zhongzi Wang"'
Publikováno v:
Fundamenta Mathematicae; 2024, Vol. 267 Issue 2, p99-116, 18p
Autor:
Shicheng Wang, Zhongzi Wang
Publikováno v:
Journal of Topology and Analysis. :1-20
Let $F_g$ be the closed orientable surface of genus $g$. We address the problem to extend torsion elements of the mapping class group ${\mathcal{M}}(F_g)$ over the 4-sphere $S^4$. Let $w_g$ be a torsion element of maximum order in ${\mathcal{M}}(F_g)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b181b9b1154ef87d677944cfe60de411
https://doi.org/10.1142/s1793525322500108
https://doi.org/10.1142/s1793525322500108
Autor:
Zhongzi Wang
To embed the bouquet of $g$ circles $B_g$ into the $n$-sphere $S^n$ so that its full symmetry group action extends to an orthogonal actions on $S^n$, the minimal $n$ is $2g-1$. This answers a question raised by B. Zimmermann.
9 pages, 4 figures,
9 pages, 4 figures,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1749bdd4c9491770955d2e27e6d6b85d
http://arxiv.org/abs/2203.16830
http://arxiv.org/abs/2203.16830
Given two closed oriented manifolds $M,N$ of the same dimension, we denote the set of degrees of maps from $M$ to $N$ by $D(M,N)$. The set $D(M,N)$ always contains zero. We show the following (non-)realisability results: (i) There exists an infinite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c291bbbc4444bab8592e8754e247746
http://arxiv.org/abs/2109.13790
http://arxiv.org/abs/2109.13790
Autor:
Zhongzi Wang, Chao Wang
Publikováno v:
Journal of Knot Theory and Its Ramifications. 28:1950062
For a polygon in the [Formula: see text]-dimensional Euclidean space, we give two kinds of normalizations of its [Formula: see text]th midpoint polygon by a homothetic transformation and an affine transformation, respectively. As [Formula: see text]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16473428a5c0361cc15b426e19a4c014
https://doi.org/10.1142/s0218216519500627
https://doi.org/10.1142/s0218216519500627