精華區beta Math 關於我們 聯絡資訊
請教各位先進 Let A, B are measuralbe set in R and mA, mB >0 Show that the set {a-b |a in A, b in B } contains an open interval where m denotes the Lebesgue measure. 這該怎麼下手了 求教了^^ 謝謝 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.119.98.197
keroro321 :"measure and integral", Zygmund 裡面就有證明 05/11 11:51
keroro321 : 類似 05/11 11:56
wuxr :是的...但是怎麼用在這題上...我還是有點困惑.求教了 05/11 12:49