engleski

Mathematical studies of Kekule structures

The perfect matching vector and forcing and the Kekule-vector of cata-benzenoids are defined. Two theorems are given which set the sufficient and necessary conditions for HKZ-vector (Harary et al. J Math Chem 6:295, 1991) and Kekule-vector in cata-benzenoids. Additional two theorems are obtained which give sharp bounds for the modules of HKZ- and Kekule vectors.

Cata-benzenoids; Geometric and algebraic kekule structures; Hidden properties; Mathematical properties; Perfect matching vector; Forcing; Kekule-vector

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