5.6 The Reverse-Detour Matrix

In parallel to the reverse-Wiener matrix, the reverse-detour matrix , denoted by RDM, can be defined by means of the vertex-detour matrix:

[RDM]ij=
 LE - [DM]ij          if ij
  0                          otherwise                                  (96)      

where LE is the longest elongation (detour distance) in a graph.

As an example of the reverse-vertex-detour matrix, RDM for G1 (see structure A in Figure 2) is given below.

RDM(G1)=
0
5
4
1
2
1
0
5
0
5
2
3
2
1
4
5
0
3
4
3
2
1
2
3
0
3
4
3
2
3
4
3
0
3
2
1
2
3
4
3
0
5
0
1
2
3
2
5
0

Molecular descriptors such as the reverse-detour index can be obtained from the reverse-detour matrix.

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