Figure 5
From: The extremal pentagon-chain polymers with respect to permanental sum

Two edge-pentagon-chains \(EPC_{s} \bigotimes \limits ^{o} EPC_{t}\) and \(EPC_{s} \bigotimes \limits ^{m} EPC_{t}\).
From: The extremal pentagon-chain polymers with respect to permanental sum
Two edge-pentagon-chains \(EPC_{s} \bigotimes \limits ^{o} EPC_{t}\) and \(EPC_{s} \bigotimes \limits ^{m} EPC_{t}\).