TY - JOUR AU - Chmieliński, Jacek PY - 2006 DA - 2006/09/19 TI - Orthogonality preserving property, Wigner equation, and stability JO - Journal of Inequalities and Applications SP - 76489 VL - 2006 IS - 1 AB - We deal with the stability of the orthogonality preserving property in the class of mappings phase-equivalent to linear or conjugate-linear ones. We give a characterization of approximately orthogonality preserving mappings in this class and we show some connections between the considered stability and the stability of the Wigner equation. SN - 1029-242X UR - https://doi.org/10.1155/JIA/2006/76489 DO - 10.1155/JIA/2006/76489 ID - Chmieliński2006 ER -