3 papers
math.GT2026
Invariants of almost embeddings of graphs in the plane
E. Alkin, A. Miroshnikov, A. Skopenkov
A graph drawing in the plane is called an almost embedding if the images of any two non-adjacent simplices (i.e. vertices or edges) are disjoint. Almost embeddings (more precisely,…
math.GT2025
On winding numbers of almost embeddings of in the plane
Emil Alkin, Alexander Miroshnikov
Let be the complete graph on four vertices. Let be a continuous map of to the plane such that -images of non-adjacent edges are disjoint. For any vertex $v \in K…
math.HO2025
Cycles in graphs and in hypergraphs: towards homology theory
A. Miroshnikov, O. Nikitenko, A. Skopenkov
In this expository paper we present some ideas of algebraic topology (more precisely, of homology theory) in a language accessible to non-specialists in the area. A -cycle in a…