Bijective Proofs for Schur Function Identities

In [4], Gurevich, Pyatov and Saponov stated an expansion for the product of two Schur functions and gave a proof based on the Plücker relations. Here we show that this identity is in fact a special case of a quite general Schur function identity, which was stated and proved in [1, Lemma 16]. In [1], it was used to prove bijectively Dodgson’s condensation formula and the Plücker relations, but was not paid further attention: So we take this opportunity to make obvious the range of applicability of this identity by giving concrete examples, accompanied by many graphical illustrations.