Implicit computational complexity and the exponential time-space classes

被引:0
|
作者
Caporaso, Salvatore [1 ]
Covino, Emanuele [1 ]
Gissi, Paolo [1 ]
Pani, Giovanni [1 ]
机构
[1] Univ Bari, Dipartimento Informat, Via Orabona, I-70125 Bari, Italy
来源
PROCEEDINGS OF THE 6TH WSEAS INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND INFORMATICS (TELE-INFO '07)/ 6TH WSEAS INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING (SIP '07) | 2007年
关键词
implicit computational complexity; exponential time; exponential space; time-space classes;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
We extend the Implicit Computational Complexity program, promoted by Leivant and by other scholars, to all complexity classes DTIMESPACEF(f (n), g (n)), between DTIMEF(n) and DSPACEF(n(nc)). Let clps (alpha, n) denote the result of replacing w by n in Cantor normal form for alpha < w(ww). A hierarchy TS alpha beta is defined by means of a very restricted form of substitution, and of two un-limited operators (simultaneous predicative recurrence and constructive diagonalization), and it is proved that DTIMESPACEF(n(clps(beta,n)), n(clps(alpha,n))) = TS alpha beta. For example DTIMESPACEF(n(2), n(n)) = TSww,2.
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页码:65 / +
页数:2
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