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Descriptions on Surfaces in Four-Space I Normal Forms
Akio Kawauchi,Tetsuo Shibuya,Suzuki Shin'ichi +2 more
- Vol. 10, Iss: 1, pp 75-125
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The article was published on 1982-01-01 and is currently open access. It has received 92 citations till now. The article focuses on the topics: Space (mathematics).read more
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Grid Homology for Knots and Links
TL;DR: The invariance of grid homology has been studied extensively in knot theory, see as discussed by the authors for a survey of some of the basic properties of the grid homologies of alternating knots.
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The 2-twist-spun trefoil has the triple point number four
Shin Satoh,Akiko Shima +1 more
TL;DR: The triple point number of an embedded surface in 4-space is the minimal number of the triple points on all the projection images into 3-space as mentioned in this paper, and it is known that the 2-twist-spun trefoil has the three-point number four.
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A characterization of groups of closed orientable surfaces in 4-space
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Cobordism, homotopy and homology of graphs in R3
TL;DR: In this paper, the authors consider a graph as a topological space and study spatial embeddings of a graph under various topological equivalence relations, such as ambient isotopy, link cobordism or link concordance, link homotopy and so on.