Where First-Order and Monadic Second-Order Logic Coincide

Cats Felis catus, in all their forms (domestic, free?roaming/stray and feral), have been identified as a major global threat to biodiversity, ...







Two new perspectives on algorithmic meta-theorems
1. Introduction. This paper has three parts. The first part is a simplified presentation of the basic ideas of the renormalization group and the ? expansion ...
Propagation of Sound in Porous Media | danylastchild07
Vertex cover and tree-depth are among the most well-studied measures in parameterized complexity. In all graphs G we have vc(G)+1 ? td(G) ? pw(G) ...
ANALOG COMPUTER SIMULATION OF A PARASITICALLY ...
The tree-depth td(G) of a graph G is defined as the minimum height of a rooted forest Y such that G is a subgraph of the closure of Y (that is ...



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Non-Tariff Measures Affecting EU Exports (EN) - OECD