TY - JOUR ID - Gheondea2018 LB - Gheondea2018 AU - Gheondea, Aurelian TI - The spectral theorem for locally normal operators ST - The spectral theorem for locally normal operators JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2018 VL - 38 IS - 5 SP - 597 EP - 621 DO - https://doi.org/10.7494/OpMath.2018.38.5.597 UR - https://doi.org/10.7494/OpMath.2018.38.5.597 AB - We prove the spectral theorem for locally normal operators in terms of a locally spectral measure. In order to do this, we first obtain some characterisations of local projections and we single out and investigate the concept of a locally spectral measure. KW - locally Hilbert space KW - locally \(C^*\)-algebra KW - locally normal operator KW - local projection KW - locally spectral measure SN - 1232-9274 ER -