4 search results - page 1 / 1 » Existential Second-Order Logic over Strings |
LICS
1998
IEEE
13 years 9 months ago
1998
IEEE
d abstract) T. Eiter G. Gottlob Y. Gurevich Institut fur Informatik Institut fur Informationssysteme EECS Department Universitat Gie en Technische Universitat Wien University of Mi...
RTA
1998
Springer
13 years 9 months ago
1998
Springer
The system FT
DLT
2009
13 years 2 months ago
2009
We study the Monadic Second Order (MSO) Hierarchy over infinite pictures, that is tilings. We give a characterization of existential MSO in terms of tilings and projections of tili...
JCSS
2000
13 years 4 months ago
2000
It is a well-known result of Fagin that the complexity class NP coincides with the class of problems expressible in existential second-order logic ( 1 1), which allows sentences c...