ƚ`  PP  .   ` &  & MathTypePSymbol "ww 0wfp-2 ~ (ySymbol: ww 0wfp-2 ~)yTimes New Romanww 0wfp-2 e xy2 xyTimes New Romanww 0wfp-2  2y2 q3y2 2y2 J2y2 .3ySymbol $ww 0wfp-2 m -y2 E=y2 +y2 *-y & "Systempfp !-