ⵜⴰⴳⴼⴼⵓⵔⵜ “ⵉⵍⴱⵉⵔ-ⴱⵡⴰⵏⴽⴰⵔⵉ Hilbert–Pⵓincaré” ⵜⴳⴰ ⵜⴰⴳⴼⴼⵓⵔⵜ ⵜⵓⵏⵙⵉⴱⵜ ⵉⵜⵜⵓⵙⵎⵔⴰⵙⵏ ⴳ ⵜⵖⵓⵔⵉ ⵏ ⵍⵊⵉⴱⵔ ⴰⵎⴹⴼⵓⵕ.