?°?òμ?òa??￡?è?í??íêˉ￡?óà2?±??ù￡??±

??èè￡?DüDüμ??e??￡?òì3￡?ì?è￡??¤μ′￡???êμ￡??§°ùíò??ò?μ?ê±???ú￡?á??é?￠???íóDò???òaèú?ˉá?μ??÷ê??￡

?-o?à?D|á?á?￡?è?à?μ??°ó??í・?・eê?ò?±úà?μ?￡??±2?è??ü′ó?èéúμ?D??à?￡

ó?′?í?ê±￡??-o?????ò2ó??ˉè?é???óò±?μ±?D￡????ˉ3éò?í?DüDüμ??e??￡?′?×???èèμ?????￡???á??é?￠??°ü1ü?eà′￡??±?ó?íòa???a??D°é????1μ???3×?ù?eá??￡

?°à?￡??-o??aμà?òμ?ê??é￡??±

?°?a??2??a?à??μ????÷￡?ò??°ê??òàáμ?oíD?±2????￡????ú???óè??òítD2?ò￡?μó???ò￡?D?èè?ò￡??ò?ó?à?-o?oí?ó?àò???ò÷ò?ò?°?èYò×￡?è′?ù±??í2??é?ü?ˉê?￡?D?èè°?￡?D?èè￡??±

?ü′ó?èéú2aè?′ó?-￡??í・?・eê?ò????・°üá?μ?1??|￡?2±?±í¨oì￡?????±?í1￡??à?à?￠×??-o??￡

μú1103??￡oμúèy°ù??ê???????μ±?ú?ò￡??ò×?é??é￡?(1)

é2??????￡??òììêˉμ???é?òa???í′?è??-o???o￡μ±?D?￡