public bool DeleteVertex(char name)
        {
            int exists = Names.FindIndex(e => e == name);
            if (exists != -1)
            {
                int index = exists;
                int n = this.AdjacencyMatrix.GetLength(0);
                int[,] NewAdjacencyMatrix = new int[n - 1, n - 1];

                bool iFlag = false;
                for (int i = 0; i < n - 1; i++)
                {
                    if (i >= index)
                        iFlag = true;

                    bool jFlag = false;
                    for (int j = 0; j < n - 1; j++)
                    {
                        if (j >= index)
                            jFlag = true;

                        if (iFlag && jFlag)
                            NewAdjacencyMatrix[i, j] = AdjacencyMatrix[i + 1, j + 1];
                        else if (iFlag && !jFlag)
                            NewAdjacencyMatrix[i, j] = AdjacencyMatrix[i + 1, j];
                        else if (!iFlag && jFlag)
                            NewAdjacencyMatrix[i, j] = AdjacencyMatrix[i, j + 1];
                        else
                            NewAdjacencyMatrix[i, j] = AdjacencyMatrix[i, j];
                    }
                }
                AdjacencyMatrix = NewAdjacencyMatrix;
                Names.RemoveAt(index);
                return true;
            }
            else
                return false;