Geodesic
Universal analytic preorders arising from surjective functions
Riccardo Camerlo1
1 Dipartimento di Matematica Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino, Italy
Fundamenta Mathematicae, Tome 187 (2005) no. 3, pp. 193-212

Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences

Examples are presented of $ {\bf\Sigma}_1^1$-universal preorders arising by requiring the existence of particular surjective functions. These are: the relation of epimorphism between countable graphs; the relation of being a continuous image (or a continuous image of some specific kind) for continua; the relation of being continuous open image for dendrites.
DOI : 10.4064/fm187-3-1
Keywords: examples presented sigma universal preorders arising requiring existence particular surjective functions these relation epimorphism between countable graphs relation being continuous image continuous image specific kind continua relation being continuous image dendrites

Riccardo Camerlo 1

1 Dipartimento di Matematica Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino, Italy 
@article{10_4064_fm187_3_1,
     author = {Riccardo Camerlo},
     title = {Universal analytic preorders arising from
 surjective functions},
     journal = {Fundamenta Mathematicae},
     pages = {193--212},
     publisher = {mathdoc},
     volume = {187},
     number = {3},
     year = {2005},
     doi = {10.4064/fm187-3-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm187-3-1/}
}
TY  - JOUR
AU  - Riccardo Camerlo
TI  - Universal analytic preorders arising from
 surjective functions
JO  - Fundamenta Mathematicae
PY  - 2005
SP  - 193
EP  - 212
VL  - 187
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm187-3-1/
DO  - 10.4064/fm187-3-1
LA  - en
ID  - 10_4064_fm187_3_1
ER  - 
%0 Journal Article
%A Riccardo Camerlo
%T Universal analytic preorders arising from
 surjective functions
%J Fundamenta Mathematicae
%D 2005
%P 193-212
%V 187
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm187-3-1/
%R 10.4064/fm187-3-1
%G en
%F 10_4064_fm187_3_1
Riccardo Camerlo. Universal analytic preorders arising from
 surjective functions. Fundamenta Mathematicae, Tome 187 (2005) no. 3, pp. 193-212. doi: 10.4064/fm187-3-1

Cité par Sources :