The Symetrie Ι-Approximate Derivatives
Acta Universitatis Lodziensis. Folia Mathematica, Tome 03 (1989).

Voir la notice de l'article provenant de la source University of Lodz Repository

In this paper we shall give a definition of a symmetric Ι-approximate derivative of a function f: R → R. We shall prove several properties of its Ι-approximate derivative.
@article{AULFM_1989_03_a5,
     author = {Libicka, Inga and {\L}azarow, Ewa},
     title = {The {Symetrie} {I-Approximate} {Derivatives}},
     journal = {Acta Universitatis Lodziensis. Folia Mathematica},
     publisher = {mathdoc},
     volume = {03},
     year = {1989},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/AULFM_1989_03_a5/}
}
TY  - JOUR
AU  - Libicka, Inga
AU  - Łazarow, Ewa
TI  - The Symetrie Ι-Approximate Derivatives
JO  - Acta Universitatis Lodziensis. Folia Mathematica
PY  - 1989
VL  - 03
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AULFM_1989_03_a5/
LA  - pl
ID  - AULFM_1989_03_a5
ER  - 
%0 Journal Article
%A Libicka, Inga
%A Łazarow, Ewa
%T The Symetrie Ι-Approximate Derivatives
%J Acta Universitatis Lodziensis. Folia Mathematica
%D 1989
%V 03
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AULFM_1989_03_a5/
%G pl
%F AULFM_1989_03_a5
Libicka, Inga; Łazarow, Ewa. The Symetrie Ι-Approximate Derivatives. Acta Universitatis Lodziensis. Folia Mathematica, Tome 03 (1989). http://geodesic.mathdoc.fr/item/AULFM_1989_03_a5/