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Notation | Definition |
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| The set of all forward links for the Firm i, where |
| The set of all reverse links for the Firm i, where |
| The set of all forward paths connecting the first layer node with demand market j, where |
| The set of all reverse paths connecting the demand market j with the first layer node |
| The set of all forward paths between all S nodes with demand market j |
| The set of all reverse paths between all S nodes with demand market j |
| The set of all forward paths between the node with all demand markets |
| The set of all reverse paths between the node with all demand markets |
| The set of all forward paths |
| The number of all forward paths |
| The set of all reverse paths |
| The number of all reverse paths |
| The nonnegative remanufactured product flow on the path p () |
| -dimensional vector of all remanufactured product flows on the paths in |
| The nonnegative manufactured product flow on the path p () |
| -dimensional vector of all manufactured product flows on the paths in |
| The nonnegative recovered EOL product flow on the path p () |
| -dimensional vector of all EOL product flows on the paths in |
| The set of all product flows, |
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