Geodesic
Algebraic Distance Between Submodules
Bulletin de l'Académie serbe des sciences. Classe des sciences mathématiques et naturelles, Tome 44 (2019) no. 1.

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

We investigate the algebraic distance between closed and orthogonaly complemented submodules of a Hilbert $C^*$-module, which is defined as the norm of a difference of corresponding orthogonal projections. Some results are proved using $2\times2$ decompositions of adjointable operators. 
@article{BASS_2019_44_1_a4,
     author = {Dragan S. Djordjevi\'c},
     title = {Algebraic {Distance} {Between} {Submodules}},
     journal = {Bulletin de l'Acad\'emie serbe des sciences. Classe des sciences math\'ematiques et naturelles},
     pages = {75 - 89},
     publisher = {mathdoc},
     volume = {44},
     number = {1},
     year = {2019},
     url = {http://geodesic.mathdoc.fr/item/BASS_2019_44_1_a4/}
}
TY  - JOUR
AU  - Dragan S. Djordjević
TI  - Algebraic Distance Between Submodules
JO  - Bulletin de l'Académie serbe des sciences. Classe des sciences mathématiques et naturelles
PY  - 2019
SP  - 75 
EP  -  89
VL  - 44
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BASS_2019_44_1_a4/
ID  - BASS_2019_44_1_a4
ER  - 
%0 Journal Article
%A Dragan S. Djordjević
%T Algebraic Distance Between Submodules
%J Bulletin de l'Académie serbe des sciences. Classe des sciences mathématiques et naturelles
%D 2019
%P 75 - 89
%V 44
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/BASS_2019_44_1_a4/
%F BASS_2019_44_1_a4
Dragan S. Djordjević. Algebraic Distance Between Submodules. Bulletin de l'Académie serbe des sciences. Classe des sciences mathématiques et naturelles, Tome 44 (2019) no. 1. http://geodesic.mathdoc.fr/item/BASS_2019_44_1_a4/