Modern Projective Geometry:
Saved in:
Bibliographic Details
Main Author: Faure, Claude-Alain (Author)
Format: Electronic eBook
Language:English
Published: Dordrecht Springer Netherlands 2000
Series:Mathematics and Its Applications 521
Subjects:
Online Access:Volltext
Item Description:Projective geometry is a very classical part of mathematics and one might think that the subject is completely explored and that there is nothing new to be added. But it seems that there exists no book on projective geometry which provides a systematic treatment of morphisms. We intend to fill this gap. It is in this sense that the present monograph can be called modern. The reason why morphisms have not been studied much earlier is probably the fact that they are in general partial maps between the point sets G and G, noted ' 9 : G -- ~ G', i.e. maps 9 : D -4 G' whose domain Dom 9 := D is a subset of G. We give two simple examples of partial maps which ought to be morphisms. The first example is purely geometric. Let E, F be complementary subspaces of a projective geometry G. If x E G \ E, then g(x) := (E V x) n F (where E V x is the subspace generated by E U {x}) is a unique point of F, i.e. one obtains a map 9 : G \ E -4 F. As special case, if E = {z} is a singleton and F a hyperplane with z tf. F, then g: G \ {z} -4 F is the projection with center z of G onto F.
Physical Description:1 Online-Ressource (XVII, 363 p)
ISBN:9789401595902
9789048155446
DOI:10.1007/978-94-015-9590-2

There is no print copy available.

Interlibrary loan Place Request Caution: Not in THWS collection! Get full text