# Petersson inner product

> English word · Noun

## Definitions
1. An inner product defined on the space of entire modular forms.

## Etymology
It was introduced by the German mathematician Hans Petersson.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/petersson-inner-product