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math.CO2025

Algorithmic methods of finite discrete structures. Topological graph drawing (part III)

Sergey Kurapov, Maxim Davidovsky

The manuscript considers mathematical models for creating a topological drawing of a graph based on the methods of G. Ringel's vertex rotation theory. An algorithm is presented for…

math.CO2024

Algorithmic methods of finite discrete structures. Hamiltonian cycle of a complete graph and the Traveling salesman problem

Sergey Kurapov, Maxim Davidovsky, Svetlana Polyuga

The monography considers the problem of constructing a Hamiltonian cycle in a complete graph. A rule for constructing a Hamiltonian cycle based on isometric cycles of a graph is es…

math.CO2024

Algorithmic methods of finite discrete structures. Topological graph drawing (part II)

Sergey Kurapov, Maxim Davidovsky

A visualized graph is a powerful tool for data analysis and synthesis tasks. In this case, the task of visualization constitutes not only in displaying vertices and edges according…

math.CO2024

Algorithmic methods of finite discrete structures. Topological graph drawing (part I)

Sergey Kurapov, Maxim Davidovsky

Modern methods of graph theory describe a graph up to isomorphism, which makes it difficult to create mathematical models for visualizing graph drawings on a plane. The topological…

math.CO2024

Algorithmic methods of finite discrete structures. Isomorphism of Nonseparable Graphs

Sergey Kurapov, Maxim Davidovsky

In this monography, it is proposed to consider the concepts of spectra of edge cuts and edge cycles of a graph as a basic mathematical structure for solving the problem of graph is…