Jacobian conjecture drew 175,492 Wikipedia views in a day

What this article is

In mathematics, the Jacobian conjecture is a conjecture concerning polynomials in several variables that states that if a polynomial function from an -dimensional space to itself has a Jacobian determinant that is a non-zero constant, then the function has a polynomial inverse.

Summary text from the Wikipedia article "Jacobian conjecture", available under CC BY-SA 4.0. Read the full article.

Where editors were working

Wikipedia editors made 101 edits to this article on 2026-07-20, concentrated in these sections. This is evidence about the surge, not an explanation of it.

• Counterexample
• Results
• Formulation of the conjecture

What changed that day

The article grew by 3,363 characters that day. The largest single addition was 899 characters. See everything that changed on 2026-07-20 in Wikipedia's own diff view — that is where the reason for a surge is usually visible, written and sourced by the editors who were following the story.

How this was measured

Views are Wikimedia's own pageview counts for en.wikipedia, filtered to agent=user so automated traffic is excluded. The baseline is the median of the previous 60 days, which is used instead of the mean so that an earlier surge cannot flatten a later one. The multiple is the day's views divided by that median.