拓扑场论还是拓扑 引力,自由度是有限的,这和我们目前最关心的物 理问题关系不大。例如,我们很难想象暗能量或黑 洞的量子性质会与很有限的自由度有关。即使有一 段时期,有些人猜测弦论存在一个拓扑相,即当能 量很高时,自由度剧烈减少,我们也看不到这和拓 扑弦论有任何关系。
很难想象暗能量或黑洞的量子性质会与很有限的自由度有关
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stocks with HFT quotes
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08/02/2011 postreply
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HFT01 quote stuffing: a massive quote-size algo was running on N
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vix001 The last time the market didn’t buy a sell off, but the V
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mkt01 Markets peak and then fall, on good news, not bad. Likewis
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the 21-day moving average of the total put-call ratio will have
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mkt01 Jeff Augen Capitalizing us on Austerity
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利用密度矩阵重整化群方法可以计算有限格点系统的基态能量、低激发态能量、关联函数
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mkt01 portfolio01 minimize cyclical exposures aapl bidu pot
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