Add to ORKGThis development provides a formalization of undirected graphs and simple graphs, which are based on Benedikt Nordhoff and Peter Lammich’s simple formalization of labelled directed graphs [4] in the archive. Then, with our formalization of graphs, we have shown both necessary and sufficient conditions for Eulerian trails and circuits [2] as well as the fact that the Königsberg Bridge problem does not have a solution. In addition, we have also shown the Friendship Theore
As is well known, a graph is a mathematical object modeling the existence of a certain relation bet...
Published in: Electronic journal of graph theory and applications (http://www.ejgta.org)A graph is a...
As is well known, a graph is a mathematical object modeling the existence of a certain relation betw...
This development provides a formalization of undirected graphs and simple graphs, which are based on...
In this paper we account for the formalization of the seven bridges of Königsberg puzzle. The proble...
2Graph theory is unanimously given a precise birthday: the solution to a then-famous problem concern...
In this paper we provide a purely combinatorial proof of the Friendship Theorem, which has been firs...
In graph theory, the Friendship Theorem states that any finite graph in which every two vertices sha...
A graph is a mathematical object modeling the existence of a certain relation between pairs of eleme...
Published in: Electronic journal of graph theory and applications (http://www.ejgta.org)A graph is a...
A graph is a mathematical object modeling the existence of a certain relation between pairs of eleme...
The field of mathematics plays very important role in different fields. One of the important areas i...
Published in: Electronic journal of graph theory and applications (http://www.ejgta.org)A graph is a...
1 There is a unique friendship two-graph? Definition 1 A friendship graph is a graph in which every ...
As is well known, a graph is a mathematical object modeling the existence of a certain relation betw...
As is well known, a graph is a mathematical object modeling the existence of a certain relation bet...
Published in: Electronic journal of graph theory and applications (http://www.ejgta.org)A graph is a...
As is well known, a graph is a mathematical object modeling the existence of a certain relation betw...
This development provides a formalization of undirected graphs and simple graphs, which are based on...
In this paper we account for the formalization of the seven bridges of Königsberg puzzle. The proble...
2Graph theory is unanimously given a precise birthday: the solution to a then-famous problem concern...
In this paper we provide a purely combinatorial proof of the Friendship Theorem, which has been firs...
In graph theory, the Friendship Theorem states that any finite graph in which every two vertices sha...
A graph is a mathematical object modeling the existence of a certain relation between pairs of eleme...
Published in: Electronic journal of graph theory and applications (http://www.ejgta.org)A graph is a...
A graph is a mathematical object modeling the existence of a certain relation between pairs of eleme...
The field of mathematics plays very important role in different fields. One of the important areas i...
Published in: Electronic journal of graph theory and applications (http://www.ejgta.org)A graph is a...
1 There is a unique friendship two-graph? Definition 1 A friendship graph is a graph in which every ...
As is well known, a graph is a mathematical object modeling the existence of a certain relation betw...
As is well known, a graph is a mathematical object modeling the existence of a certain relation bet...
Published in: Electronic journal of graph theory and applications (http://www.ejgta.org)A graph is a...
As is well known, a graph is a mathematical object modeling the existence of a certain relation betw...