𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Characterizing NC with tier 0 pointers

✍ Scribed by Isabel Oitavem


Book ID
102483031
Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
130 KB
Volume
50
Category
Article
ISSN
0044-3050

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

A two‐sorted term system characterizing NC implicitly is described. The term system is defined over the tree algebra 𝕋, the free algebra generated by 0, 1 and βˆ—οΈ, and the recursion scheme uses pointers over tier 0. This differs from previous characterizations of NC, where tier 1 pointers were used or full parameter substitution over tier 0 was allowed. (Β© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)


πŸ“œ SIMILAR VOLUMES


Characterizing PSPACE with pointers
✍ Isabel Oitavem πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 124 KB

## Abstract This paper gives an implicit characterization of the class of functions computable in polynomial space by deterministic Turing machines – PSPACE. It gives an inductive characterization of PSPACE with no ad‐hoc initial functions and with only one recursion scheme. The main novelty of thi

Characterization of diamond (1 0&#x
✍ Run Long; Ying Dai; Meng Guo πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 381 KB

Ab initio density functional theory (DFT) was employed to study reconstructions of diamond (1 0 0) surfaces in the presence of hydrogen, oxygen and hydroxyl. Clean and (2 Γ‚ 1):1H surfaces are taken as reference. The properties of oxidization diamond surfaces with several adsorption structures, namel