Extending Peano derivatives: necessary and sufficient conditions

Hans Volkmer

Fundamenta Mathematicae (1999)

  • Volume: 159, Issue: 3, page 219-229
  • ISSN: 0016-2736

Abstract

top
The paper treats functions which are defined on closed subsets of [0,1] and which are k times Peano differentiable. A necessary and sufficient condition is given for the existence of a k times Peano differentiable extension of such a function to [0,1]. Several applications of the result are presented. In particular, functions defined on symmetric perfect sets are studied.

How to cite

top

Volkmer, Hans. "Extending Peano derivatives: necessary and sufficient conditions." Fundamenta Mathematicae 159.3 (1999): 219-229. <http://eudml.org/doc/212330>.

@article{Volkmer1999,
abstract = {The paper treats functions which are defined on closed subsets of [0,1] and which are k times Peano differentiable. A necessary and sufficient condition is given for the existence of a k times Peano differentiable extension of such a function to [0,1]. Several applications of the result are presented. In particular, functions defined on symmetric perfect sets are studied.},
author = {Volkmer, Hans},
journal = {Fundamenta Mathematicae},
keywords = {Denjoy index; Peano derivatives; symmetric perfect sets; extension},
language = {eng},
number = {3},
pages = {219-229},
title = {Extending Peano derivatives: necessary and sufficient conditions},
url = {http://eudml.org/doc/212330},
volume = {159},
year = {1999},
}

TY - JOUR
AU - Volkmer, Hans
TI - Extending Peano derivatives: necessary and sufficient conditions
JO - Fundamenta Mathematicae
PY - 1999
VL - 159
IS - 3
SP - 219
EP - 229
AB - The paper treats functions which are defined on closed subsets of [0,1] and which are k times Peano differentiable. A necessary and sufficient condition is given for the existence of a k times Peano differentiable extension of such a function to [0,1]. Several applications of the result are presented. In particular, functions defined on symmetric perfect sets are studied.
LA - eng
KW - Denjoy index; Peano derivatives; symmetric perfect sets; extension
UR - http://eudml.org/doc/212330
ER -

References

top
  1. [1] Z. Buczolich, Second Peano derivatives are not extendable, Real Anal. Exchange 14 (1988-89), 423-428. Zbl0679.26005
  2. [2] Z. Buczolich and C. Weil, Extending Peano differentiable functions, Atti Sem. Mat. Fis. Univ. Modena 44 (1996), 323-330. Zbl0865.26007
  3. [3] P. Bullen, Denjoy's index and porosity, Real Anal. Exchange 10 (1984-85), 85-144. Zbl0595.26001
  4. [4] A. Denjoy, Sur l'intégration des coefficients différentiels d'ordre supérieur, Fund. Math. 25 (1935), 273-326. Zbl61.1115.03
  5. [5] A. Denjoy, Leçons sur le calcul de coefficients d'une série trigonométrique I-IV, Gauthier-Villars, Paris, 1941-1949. 
  6. [6] H. Fejzić, The Peano derivatives, doct. dissertation, Michigan State Univ., 1992. 
  7. [7] H. Fejzić, J. Mařík and C. Weil, Extending Peano derivatives, Math. Bohem. 119 (1994), 387-406. Zbl0824.26003
  8. [8] H. W. Oliver, The exact Peano derivative, Trans. Amer. Math. Soc. 76 (1954), 444-456. Zbl0055.28505
  9. [9] B. Thomson, Real Functions, Lecture Notes in Math. 1170, Springer, Berlin, 1985. 

NotesEmbed ?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

    
                

Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.