# nLab bicategorical trace

### Context

#### 2-Category theory

2-category theory

# Contents

## Idea

A generalization of the notion of trace in a monoidal category to a bicategory context, based on equipping the bicategory with a “shadow” or categorified trace (including the trace of a category).

## Examples

The following traditional notions of “traces” turn out to be special cases of bicategorical traces

## References

A survey is in

Revised on August 28, 2017 18:31:42 by Mike Shulman (69.75.108.203)