Definition:Lefschetz Number

Definition

Let $K$ be a simplical complex.

The Lefschetz Number of $K$ is a number associated with $K$ relating to the Lefschetz Fixed Point Theorem.

This article, or a section of it, needs explaining. In particular: exactly what it is; Nelson is vague here You can help $\mathsf{Pr} \infty \mathsf{fWiki}$ by explaining it. To discuss this page in more detail, feel free to use the talk page. When this work has been completed, you may remove this instance of {{Explain}} from the code.

Also see

• Results about Lefschetz numbers can be found here.

Source of Name

This entry was named for Solomon Lefschetz.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Euler-Poincaré characteristic
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Lefschetz number
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Euler-Poincaré characteristic
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Lefschetz number