浙江师范大学一般拓扑学考试卷

20042005031502005632101.A.B.C.D.2.A.B.C.D.1T2T3T4T3.A.B.C.D.1T2T3T4T4.X21,ττX(A)21ττ∪X;(B)21ττ∩X;(C)21ττ∪X;(D)21ττ∩X5.A,),(dX(A)xA(,)(,)0dxAdxXA=−=(B)xA(,)0dxA=(C)xA(,)0dxXA−;(D)Ax∈0),(=Axd.03122261..2..3..4..5.1:fS→11t∃∈1()ft−.6..7.Lebesgue.8.9..10..11.XX12.AXBABX.13..2C16210161..2.{}0,1,2X=X.8481.X1TX2..3.T4.4.XHausdorff{(,)|}xxxX∆=∈XX×.5.1X2XX12XXX=∪X12XX∩1X2X.6.XX0322