Abstract
Smoothness conditions on a function $f:\mathbb{R}^{2}\rightarrow \mathbb{R}$ that are weaker than being differentiable or Lipschitz at a point are defined and studied.
Citation
J. Marshall Ash. Stefan Catoiu. "Directional Differentiability in the Euclidean Plane." Real Anal. Exchange 42 (1) 185 - 192, 2017.
Information
Published: 2017
First available in Project Euclid: 27 March 2017
zbMATH: 1384.26036
MathSciNet: MR3702561
Subjects:
Primary:
26B05
,
26B35
Secondary:
26A24
,
26A27.
Keywords:
Two dimensional differentiability
,
two dimensional Lipschitz
Rights: Copyright © 2017 Michigan State University Press
