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oscillationµÄËõд, Òâ˼ÊÇÕñ·ù. ¶¨ÒåÈçÏÂ
2Â¥2013-06-09 11:26:07
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2Â¥: Originally posted by weft at 2013-06-09 11:26:07
oscillationµÄËõд, Òâ˼ÊÇÕñ·ù. ¶¨ÒåÈçÏ { \sup\limits_{ x, y } |u(x) - u(y)| }

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