Shifted Witten classes and topological recursion

Séverin Charbonnier, Nitin Kumar Chidambaram, Elba Garcia-Failde +1

The Witten $r$-spin class defines a non-semisimple cohomological field theory. Pandharipande, Pixton and Zvonkine studied two special shifts of the Witten class along two semisimpl…