The **trace zero density** of a Sato-Tate group is the probability that a randomly sampled element (chosen according to the Haar measure) has trace zero.

On each component of a Sato-Tate group, the trace is either constant and equal to zero, or varies continuously taking each particular value with probability zero; so this probability is simply the ratio of the number of components on which the trace is identically zero to the total number of components.

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- Last edited by Kiran S. Kedlaya on 2019-04-20 16:11:50

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- 2019-04-20 16:11:50 by Kiran S. Kedlaya (Reviewed)
- 2018-06-20 04:12:15 by Kiran S. Kedlaya (Reviewed)

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