Let _{1}, . . . ,_{m}_{1}, . . . , _{n}_{1}, . . . , _{m}_{1}, . . . , _{n}_{1}, . . . , _{m}_{1}, . . . , _{n}_{1}, . . . , _{m}_{1}, . . . , _{n}_{s,t}-bigraphic pair_{s,t}_{s,t}_{1}, . . . , _{m}_{1}, . . . , _{n}_{1}+ … +_{m}_{s,t}_{s,t}^{4}^{4}. In this paper, we first give a procedure and two sufficient conditions to determine if _{s,t}_{s,t}^{2} − (2

#### Keywords

- bigraphic pair
- realization
- potentially -bigraphic pair

#### MSC 2010

- 05C35
- 05C07

_{s,t}-bigraphic pairs

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