3 papers
math.GT2020
The minor minimal intrinsically chiral graphs
Howon Choi, Hyoungjun Kim, Sungjong No
Molecular chirality is actively researched in a variety of areas of biology, including biochemistry, physiology, pharmacology, etc., and today many chiral compounds are widely know…
math.GT2018
Circuit presentation and lattice stick number with exactly 4 -sticks
Hyoungjun Kim, Sungjong No
The lattice stick number of a link is defined to be the minimal number of straight line segments required to construct a stick presentation of in the cubic lattice…
math.GT2017
More intrinsically knotted graphs with 22 edges and the restoring method
Hyoungjun Kim, Thomas Mattman, Seungsang Oh
A graph is called intrinsically knotted if every embedding of the graph contains a knotted cycle. Johnson, Kidwell and Michael, and, independently, Mattman showed that intrinsicall…