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On the global
dimension of fibre products
Ellen Kirkman and James J. Kuzmanovich |
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Vol. 134 (1988), No. 1, 121–132
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Abstract |
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In this paper we will sharpen Wiseman’s upper bound on the global dimension of a fibre product [Theorem 2] and use our bound to compute the global dimension of some examples. Our upper bound is used to prove a new change of rings theorem [Corollary 4]. Lower bounds on the global dimension of a fibre product seem more difficult; we obtain a result [Proposition 12] which allows us to compute lower bounds in some special cases. |
Mathematical Subject Classification
Primary: 16A60, 16A60
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Milestones
Received: 23 February 1987
Published: 1 September 1988
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Authors |
| Ellen Kirkman | |
| Wake Forest University | |
| James J. Kuzmanovich | |
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