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2 votes
2 votes
S1:  T(1)                T(2)
        Read(Q)      
                              Write(Q)
        Write(Q)

S2:   T(1)                T(2)
                              Write(Q)
         Read(Q)
         Write (Q)

Are Schedule S1 and S2 view equivalent?

I don't think so because, in S1, T1 read the value of Q which is different from the value read by T1(in  S2).
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