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Oscar Plaisant
2024-12-25 22:30:24 +01:00
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up:: [[distances particulières]]
#maths/algèbre
#s/maths/algèbre
![[distance cordale 2024-09-09 10.55.20.excalidraw]]
> [!idea] Distance induite de la distance cordale
> [!idea] [[distance induite]] de la distance cordale
> Soit $(\mathbb{R}^{2}, d)$ l'espace métrique muni de la [[distance cordale]]
> Soit $A = S(0, 1) = \{ x \in \mathbb{R}^{2}\mid \|x\| = 1 \}$ le cercle de rayon 1 et de centre $0_{\mathbb{R}^{2}}$
> Regardons $B_{A}(x_0, r) = B_{\mathbb{R}^{2}}(x_0, r) \cap A$