## What is it about?

We give a normal form for group actions on manifolds endowed with symplectic structures with mild singularities (called b-symplectic/log-symplectic manifolds). These normal forms give an accurate description of the geometric structure in a neighborhood of the orbit of the group actions.

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## Why is it important?

b-Symplectic structures appear naturally on symplectic manifolds with boundary and on several physical problems including the 3-body problem. Thus understanding these structures can have important applications in Physical systems when symmetries are considered.

## Perspectives

## Read the Original

This page is a summary of: A b$b$‐symplectic slice theorem, Bulletin of the London Mathematical Society, August 2022, Wiley,

DOI: 10.1112/blms.12713.

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