ORDINAL COMPLEXITY OF RECURSIVE DEFINITIONS

被引:7
|
作者
FAIRTLOUGH, MVH
WAINER, SS
机构
[1] Department of Pure Mathematics, Leeds University, Leeds
关键词
D O I
10.1016/0890-5401(92)90027-D
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We classify and compare recursive and iterative definitions of total computable functions according to the complexity of the ordinal structures needed to verify termination. An old theorem of Tait is generalised to show that the cost of transforming recursive programs into while-loops is at most an exponential increase in the length of their termination orderings. © 1992.
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页码:123 / 153
页数:31
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