Title
Towards a Unified Complexity Theory of Total Functions.
Abstract
The class TFNP, of NP search problems where all instances have solutions, appears not to have complete problems. However, TFNP contains various syntactic subclasses and important problems. We introduce a syntactic class of problems that contains these known subclasses, for the purpose of understanding and classifying TFNP problems. This class is defined in terms of the search for an error in a concisely-represented formal proof. Finally, the known complexity subclasses are based on existence theorems that hold for finite structures; from Herbrand's Theorem, we note that such theorems must apply specifically to finite structures, and not infinite ones.
Year
DOI
Venue
2018
10.1016/j.jcss.2017.12.003
Journal of Computer and System Sciences
Keywords
DocType
Volume
Computational complexity,First-order logic,Proof system,NP search functions,TFNP
Conference
94
ISSN
Citations 
PageRank 
0022-0000
1
0.35
References 
Authors
0
2
Name
Order
Citations
PageRank
Paul W. Goldberg175998.26
Christos H. Papadimitriou211.02