This is a preview. Log in through your library . Abstract We consider valued fields with a distinguished isometry or contractive derivation as valued modules over the Ore ring of difference operators.

Cylindrical Algebraic Decomposition (CAD) is a pivotal algorithmic technique in real algebraic geometry, instrumental in resolving problems expressed in a first‐order language over the reals. By ...

This is a preview. Log in through your library . Abstract Natural language sentences that talk about two or more sets of entities can be assigned various readings. The ones in which the sets are ...