Remarks on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="$\mu$″"><mml:msup><mml:mi>μ</mml:mi><mml:mo>″</mml:mo></mml:msup></mml:math>-measurbale sets: regularity,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="$\sigma$"><mml:mi>σ</mml:mi></mml:math>-smootheness, and measurability
International journal of mathematics and mathematical sciences