supported by the National Natural Science Foundation of China (Grant No.10371061)
For a field F,let Gn(F) = {{a,Φn(a)} ∈ K2(F) | a,Φn(a) ∈ F*},where Φn(x) is the n-th cyclotomic polynomial.At first,by using Faltings' theorem on Mordell conjecture it is proved that if F is a number field and if...
the National Natural Science Foundation of China (Grant No. 10371061)
The probabilities of the state transitions of the initial value S 0 in the S table of RC4 are described by a kind of bistochastic matrices, and then a computational formula for such bistochastic matrices is given, by ...
Let R be a ring. A right R-module M with S = End(MR) is called a quasi AP-injective module, if, for any s C S, there exists a left ideal Xs of S such that ls(ker s) = Ss+Xs. Let M be a quasi AP-injective module w...