Geometry of Subanalytic and Semialgebraic Sets

Subanalytic and semialgebraic were introduced for topological and systematic investigations of real and algebraic sets. The author generalizes them by treating them abstractly. This text should be suitable for researchers in topology.

I. Preliminaries.- §1.1. Whitney stratifications.- §1.2. Subanalytic sets and semialgebraic sets.- §1.3. PL topology and C? triangulations.- II. X-Sets.- §11.1. X-sets.- §11.2. Triangulations of X-sets.- §11.3. Triangulations of X functions.- §11.4. Triangulations of semialgebraic and X0 sets and functions.- §11.5. Cr X-manifolds.- §11.6. X-triviality of X-maps.- §11.7. X-singularity theory.- III. Hauptvermutung For Polyhedra.- §III.1. Certain conditions for two polyhedra to be PL homeomorphic.- §III.2. Proofs of Theorems III.1.1 and III.1.2.- IV. Triangulations of X-Maps.- §IV.l. Conditions for X-maps to be triangulable.- §IV.2. Proofs of Theorems IV.1.1, IV.1.2, IV.1.2? and IV.1.2?.- §IV.3. Local and global X-triangulations and uniqueness.- §IV.4. Proofs of Theorems IV.1.10, IV.1.13 and IV.1.13?.- V. D-Sets.- §V.1. Case where any D-set is locally semilinear.- §V.2. Case where there exists a D-set which is not locally semilinear.- List of Notation.