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Brezis–Gallouet–Wainger remainder constant on the 2D torus

16a
Upper bound, last-listed row
| $\approx 2.15627$ | [BDZ2013] | Numerical evaluation; maximum achieved at $\delta^{\ast} \approx 3.92888$ |tracked since 2026-07-24 — no movement seen yet
Lower bound, last-listed row
| $\frac{\beta + \pi}{\pi} \approx 1.82283$ | [BDZ2013] | |tracked since 2026-07-24 — no movement seen yet
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Cite this rowBounds Ledger — Brezis–Gallouet–Wainger remainder constant on the 2D torus (16a) upper bound: $\approx 2.15627$ (tracked since 2026-07-24 — no movement seen yet) lower bound: $\frac{\beta + \pi}{\pi} \approx 1.82283$ (tracked since 2026-07-24 — no movement seen yet) Mirrored from teorth/optimizationproblems@2c1968c. These are the last-listed rows of that constant's bounds table — a listing position, not a statement that this bound is the strongest or most recent. A snapshot at that sha, not a live read. https://u00dxk2.github.io/bounds-ledger/c/16a.html