Definition:Fundamental Group/Also known as

Fundamental Group: Also known as

The fundamental group of a topological space $T$ is also known more explicitly as the fundamental homotopy group of $T$.

The fundamental group of $T$ is also known as the Poincaré group of $T$, for Henri Poincaré.

Sources

• 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): fundamental homotopy group or groupoid
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): homotopy group
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): homotopy group