normal bundle


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normal bundle

[¦nȯr·məl ¦bən·dəl]
(mathematics)
If A is a manifold and B is a submanifold of A, then the normal bundle of B in A is the set of pairs (x,y), where x is in B, y is a tangent vector to A, and y is orthogonal to B.
References in periodicals archive ?
By the end of the first day we had raised pounds 20,000 and by the end of the weekend we had raised pounds 50,000 and then the postman arrived in the office, not just with the normal bundle of mail, but with sacks of mail.
In this paper, we consider totally real submanifold with constant scalar curvature and flat normal bundle and we use the method of proof which is given in [6] and [9].
Wright had been his normal bundle of energy in an opening spell when the pace of strikers Salaheddine Bassir and Rachid Rokki had caused occasional problems fora ba ck trio marshalled by Aston Villa's Gareth Southgate, and Gascoigne's dilly-dallying on the ball did let Youssef Chippo run menacingly once or twice.