The assertion is known as the closed graph theorem for Hilbert spaces.这个断语被称为希耳伯特空间的闭图象定理.From the point of view of Hilbert space sets of measure 0 are negligible.从希耳伯特空间的观点看来,测度为0的子集是可以省略的.His method is an improvement o...
I get sick of being thought of as a political automaton.我讨厌被看作政治机器。When we are off sick, we only receive half pay.我们请病假的时候只能拿一半薪水。He was worried sick about what our mothers would say.对于我们双方的母亲会说什么他十分担心。...