problems / simon-ionization-excess

Also in this folder: compute/ · figures/ · lean/

Attack log — simon-ionization-excess

Chronological attempts, newest last. A failed attack belongs here too.

2026-08-27 — mint and fetch

2026-08-27 — false start: beat 1.1185 by a new ss or a better β3\beta_3

2026-08-27 — useful failure: HPS a1a_1 endpoint

2026-08-27 — the click

Certified (interval arithmetic in tighten_hps.py; second path verify_remainder.py; C and Rust on b(2)b(2), b(3)b(3)):

Nc<b(2)Z+2.953 Z1/3(Z≥2),N_c<b(2)Z+2.953\,Z^{1/3}\qquad(Z\ge2), N<b(3)Z+3.892 Z1/3+0.0134+0.184 Z−1/3+0.0196 Z−2/3(Z≥4),N<b(3)Z+3.892\,Z^{1/3}+0.0134+0.184\,Z^{-1/3}+0.0196\,Z^{-2/3}\qquad(Z\ge4), Nc<1.1185Z+3.9781 Z1/3(Z≥4).N_c<1.1185Z+3.9781\,Z^{1/3}\qquad(Z\ge4).

2026-08-27 — small ZZ and heuristics

2026-08-27 — Lean

Replay: problems/simon-ionization-excess/compute/q1/run_all.sh.

2026-08-27 — q2 record replay (later papers)

No later fermionic leading coefficient below 1.1185. No paper proves a ZZ-independent bound on the excess. No unique N0(Z)N_0(Z) for Z>1Z>1.

2026-08-27 — q2 false start: s>3s>3

b(4)≈1.083b(4)\approx1.083 would be a real jump if Lemma 4.3 extended. Two-shell opposite dipoles make Is(ν)I_s(\nu) negative for every tested s>3s>3. At s=4s=4 the quadratic is the exact rational −1025/2048-1025/2048. At s=3s=3 the dipole form stays nonnegative (Hardy threshold). Remark 2.3 stays a conjecture. Residue: compute/q2/certs/s_gt_3.json.

2026-08-27 — q2 false start: finite ZZ

Published envelopes at Z=2,3,4,5Z=2,3,4,5: Lieb Nc<2Z+1N_c<2Z+1 still excludes the most integers. Nam and both HPS forms sit above 2Z+12Z+1 there. Regular tetrahedron: α4,2≤6/4\alpha_{4,2}\le\sqrt6/4, so α4,2⋅3<2\alpha_{4,2}\cdot3<2 because 54<6454<64. Pair geometry with the kinetic term dropped cannot exclude N=4N=4 at Z=2Z=2. Lieb-style weights, Nam’s αN\alpha_N remainder, and Temple/intermediate Hamiltonians also failed. Unsettled NN at Z=2Z=2 is {2,3,4}\{2,3,4\}. Hydrogen uniqueness not claimed. Residue: compute/q2/certs/smallz.json.

2026-08-27 — q2 useful failure: withdrawn 1.11681.1168

A tail polynomial h(DL,DR)h(D_L,D_R) was used to lift a middle-window Rayleigh to every Borel probability, claiming β3≥0.895396\beta_3\ge0.895396 and β3−1≤1.11682<1.1185\beta_3^{-1}\le1.11682<1.1185. False: h(0,1)≈0.991h(0,1)\approx0.991 exceeds the HPS power-law I/D≈0.921I/D\approx0.921 on a measure supported in that tail. Also ICC≥βDCI_{CC}\ge\beta D_C is false. certs/beta3_rad.json is withdrawn.

2026-08-27 — q2 compact class, no lift

The mid-radius face enumeration is correct on a compact aspect. After the Pmax⁡=(q−1)/(q+1)P_{\max}=(q-1)/(q+1) reweighting error,

Q≥0.901924on D-aspect ≤4,Q\ge0.901924\qquad\text{on $D$-aspect }\le4,

so 1/Q≤1.1087411/Q\le1.108741 in that class (certs/beta3_compact.json, C faces at n=18n=18, 00 singular; Rust n=16n=16 rebuild). The numerical power-law minimizer has aspect ∼3.50\sim3.50, so it sits in the class. HPS β3\beta_3 is an inf over all radial probabilities, so this does not replace 1.11851.1185 in Theorem 2.2.

Two-window lift with cross terms at min⁡f\min f has p12≈0.995p_{12}\approx0.995 and collapses to min⁡f\min f. Geometric t0t_0-chains stay at Q≥0.9379Q\ge0.9379 in a scan (certs/aspect_try.json); that is not a lower bound. No certificate that every minimizer has bounded aspect.

2026-08-27 — q2 status

Residue. Leading coefficient still 1.11851.1185 (Hundertmark–Pattakos–Schulz arXiv:2504.18487v1). Remainder dent from q1 unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q2/run_all.sh.

2026-08-27 — q3 record replay

2026-08-27 — q3 leftovers: finite ZZ and s>3s>3

Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6 (Nc≤2ZN_c\le 2Z). Nam and HPS s=2s=2 sit below 2Z+12Z+1 as reals at Z=6Z=6 and still above 1212. Five octahedron vertices block N=5N=5 at Z=3Z=3 by pair geometry (128<169128<169), the same obstruction as the tetrahedron. Two-shell dipoles still make IsI_s negative for s>3s>3 (−1025/2048-1025/2048 at s=4s=4). Infinite t0t_0-chains and log-radius convolution recover only min⁡f\min f as a global floor. Residue: compute/q3/work/smallz.md, s_gt_3_toeplitz.md.

2026-08-27 — q3 the click: mass-opt, not existence

The leftover from q2 was “a minimizer has bounded aspect.” An adversarial probe found no Q<0.8995Q<0.8995 and no mass-stationary kk-atomic with Q≤0.921Q\le 0.921 and aspect ≥12\ge 12, but existence of a global minimizer was still a sketch.

The lift does not need a minimizer. For any finite set of radii, mass-optimisation on the simplex exists. The mass-critical point is stationary for QQ and satisfies V(ri)=(Q/2)(ri2+D)V(r_i)=(Q/2)(r_i^2+D) at every used atom. The endpoint identities then force Q>R/(R+1)Q>R/(R+1) if the used aspect is R≥12R\ge 12. At R=12R=12 that is Q>12/13>0.899526Q>12/13>0.899526. If mass-opt drops an endpoint, the used aspect shrinks into the compact class.

So every finitely atomic radial measure has Q≥γ12Q\ge\gamma_{12}. A compactly supported radial probability is a QQ-limit of finite spherical shells. A finite-DD measure is a QQ-limit of compact truncations (r2r^2 is UI for that one measure). Hence β3≥γ12\beta_3\ge\gamma_{12} on HPS D3D_3.

The aspect-≤4\le 4 number 1.10871.1087 is not used: the split min⁡(γR,R/(R+1))\min(\gamma_R,R/(R+1)) only beats 1.11851.1185 once R≥9R\ge 9. The stored R=12R=12 row is the first certified class that works. 1.11681.1168 stays withdrawn.

2026-08-27 — q3 dent

Same HPS §7 chain with β3≥0.899526\beta_3\ge 0.899526:

N<1.1118Z+3.880 Z1/3+0.0133+0.1833 Z−1/3+0.01956 Z−2/3(Z≥4),N<1.1118Z+3.880\,Z^{1/3}+0.0133+0.1833\,Z^{-1/3}+0.01956\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1118Z+3.966 Z1/3(Z≥4).N_c<1.1118Z+3.966\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py, C and Rust on the 12/1312/13 algebra, mass-opt scan with no counterexample, stored R=12R=12 faces (copositive, 55 residual skips). q1 remainders 2.9532.953, 3.8923.892, 3.97813.9781 unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q3/run_all.sh.

2026-08-27 — q4 record replay

2026-08-27 — q4 leftovers: finite ZZ, moments, Pmax⁡P_{\max}

Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6. The q3 simplified 1.1118Z+3.966Z1/31.1118Z+3.966Z^{1/3} sits below printed HPS as a real and still above 2Z+12Z+1. Nam Lemma 1 at the Lieb edge and a separated four-electron Hylleraas trial do not exclude a new integer. N0(Z)−ZN_0(Z)-Z cannot move from a leading coefficient >1>1.

Endpoint identities plus Hölder/Chebyshev leave a nonempty abstract (Q,D)(Q,D) region below γ4\gamma_4; a representing measure on [1,4][1,4] was not found in the scan, and no pen-and-paper R=4R=4 lift was obtained. The TV amplitude 1−fmin⁡1-f_{\min} is sharp at vertices (Fii=1F_{ii}=1). A spread lemma is numerical only. Residue: compute/q4/work/smallz.md, moment_notes.md, pmax_notes.md. 1.11681.1168 stays withdrawn.

2026-08-27 — q4 the click: raise φ\varphi and nn, split at R=10R=10

The q3 bottleneck was the compact γ\gamma at R=12R=12, not the cut 12/1312/13. Certified φ=0.9055\varphi=0.9055 sat 0.00140.0014 below SLSQP. Larger nn shrinks P=(q−1)/(q+1)P=(q-1)/(q+1). The split min⁡(γR,R/(R+1))\min(\gamma_R,R/(R+1)) beats 1.11181.1118 as soon as γR\gamma_R moves up and R/(R+1)R/(R+1) still exceeds it. R=10R=10 is the first row where a certified γ\gamma and 10/1110/11 both sit above 1/1.11181/1.1118.

2026-08-27 — q4 dent

Same HPS §7 chain with β3≥0.904414\beta_3\ge 0.904414 (aspect 1010, n=26n=26 faces, φ=0.9091\varphi=0.9091):

N<1.1057Z+3.860 Z1/3+0.0132+0.1830 Z−1/3+0.01952 Z−2/3(Z≥4),N<1.1057Z+3.860\,Z^{1/3}+0.0132+0.1830\,Z^{-1/3}+0.01952\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1057Z+3.946 Z1/3(Z≥4).N_c<1.1057Z+3.946\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=26n=26 faces (C dump and independent Rust Cramer re-enum, both copositive, 2323 residual skips). The unrestricted leading sits below the aspect-≤4\le 4 class-only 1.10871.1087. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q4/run_all.sh.

2026-08-27 — q5 record replay

2026-08-27 — q5 dead line: R≤9R\le 9 cut

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10571.1111>1.1057. Same wall at R=8R=8 (1.1251.125). Residue: compute/q5/certs/r9_cut.json. A sharper large-aspect cut would reopen this line; none is certified.

2026-08-27 — q5 scan: more bins at R=10R=10

SLSQP plus the Pmax⁡P_{\max} tax (certs/scan_compact.json):

The live line is R=10R=10 with n≥27n\ge 27. Face enumeration is the certificate, not the SLSQP prediction.

2026-08-27 — q5 dent

Same HPS §7 chain with β3≥0.906238\beta_3\ge 0.906238 (aspect 1010, n=30n=30 faces, φ=0.9103\varphi=0.9103):

N<1.1035Z+3.855 Z1/3+0.01320+0.1828 Z−1/3+0.019510 Z−2/3(Z≥4),N<1.1035Z+3.855\,Z^{1/3}+0.01320+0.1828\,Z^{-1/3}+0.019510\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1035Z+3.941 Z1/3(Z≥4).N_c<1.1035Z+3.941\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=30n=30 faces (1,073,741,8231{,}073{,}741{,}823, copositive, 420420 residual skips). Intermediate certified row n=28n=28 gives printed 1.10461.1046. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q5/run_all.sh.

2026-08-27 — q6 record replay

2026-08-27 — q6 dead line: R≤9R\le 9 cut

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10351.1111>1.1035. Same wall at R=8R=8 (1.1251.125). Residue: compute/q6/certs/r9_cut.json. A sharper large-aspect cut would reopen this line; none is certified.

s>3s>3 along Lemma 4.3 is still residue (two-shell s=4s=4 rational −1025/2048-1025/2048). Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6.

2026-08-27 — q6 scan: more bins at R=10R=10

SLSQP plus the Pmax⁡P_{\max} tax (certs/scan_compact.json after the scan is stored):

The live line is R=10R=10 with n=32n=32. Face enumeration is the certificate, not the SLSQP prediction.

2026-08-27 — q6 dent

Same HPS §7 chain with β3≥0.906992\beta_3\ge 0.906992 (aspect 1010, n=32n=32 faces, φ=0.9108\varphi=0.9108):

N<1.1026Z+3.853 Z1/3+0.01320+0.1828 Z−1/3+0.019500 Z−2/3(Z≥4),N<1.1026Z+3.853\,Z^{1/3}+0.01320+0.1828\,Z^{-1/3}+0.019500\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1026Z+3.938 Z1/3(Z≥4).N_c<1.1026Z+3.938\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=32n=32 faces (4,294,967,2954{,}294{,}967{,}295, copositive, 11571157 residual skips, min⁡m⊤Mm>6⋅10−4\min m^\top Mm>6\cdot 10^{-4}). 1/γ=1.1025461/\gamma=1.102546 prints as 1.10261.1026. Cut 10/11>γ10/11>\gamma. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q6/run_all.sh.

2026-08-27 — q7 record replay

2026-08-27 — q7 dead line: R≤9R\le 9 cut

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10261.1111>1.1026. Same wall at R=8R=8 (1.1251.125) and at R=9.5R=9.5 (1.105261.10526). Residue: compute/q7/certs/r9_cut.json. A sharper large-aspect cut would reopen R≤9R\le 9; none is certified.

s>3s>3 along Lemma 4.3 is still residue (two-shell s=4s=4 rational −1025/2048-1025/2048). Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6.

M=A−γSym(c,1)/2M=A-\gamma\mathrm{Sym}(c,1)/2 at the predicted n=33n=33 target has two negative eigenvalues. Zeroing negative off-diagonals does not make it PSD, so the PSD+NN shortcut is not a certificate. Large principal submatrices stay non-PD.

2026-08-27 — q7 scan: more bins at R=10R=10

SLSQP plus the Pmax⁡P_{\max} tax (certs/scan_compact.json):

The live line is R=10R=10 with n=33n=33. Face enumeration is the certificate, not the SLSQP prediction.

2026-08-27 — q7 dent

Same HPS §7 chain with β3≥0.907407\beta_3\ge 0.907407 (aspect 1010, n=33n=33 faces, φ=0.9111\varphi=0.9111):

N<1.1021Z+3.851 Z1/3+0.01320+0.1828 Z−1/3+0.019500 Z−2/3(Z≥4),N<1.1021Z+3.851\,Z^{1/3}+0.01320+0.1828\,Z^{-1/3}+0.019500\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1021Z+3.937 Z1/3(Z≥4).N_c<1.1021Z+3.937\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=33n=33 faces (8,589,934,5918{,}589{,}934{,}591, copositive, 25182518 residual skips, min⁡m⊤Mm>4⋅10−4\min m^\top Mm>4\cdot 10^{-4}). 1/γ=1.1020411/\gamma=1.102041 prints as 1.10211.1021. Cut 10/11>γ10/11>\gamma. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q7/run_all.sh.

2026-08-27 — q8 record replay

2026-08-27 — q8 dead line: R≤9R\le 9 cut

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10211.1111>1.1021. Same wall at R=8R=8 (1.1251.125) and at R=9.5R=9.5 (1.105261.10526). Residue: compute/q8/certs/r9_cut.json. Chebyshev D⋅M−1≥1D\cdot M_{-1}\ge 1 on the endpoint slab does not push the R≤9R\le 9 cut above 1/1.1021≈0.907361/1.1021\approx 0.90736 (certs/sharper_cut.json). At R=9.5R=9.5 that Chebyshev number is 0.910290.91029, which would sit above the floor; it is a probe, not a wired lift. The cheap live line stays the proven R=10R=10 split. A still-sharper large-aspect cut would reopen R≤9R\le 9; none is certified.

s>3s>3 along Lemma 4.3 is still residue (two-shell s=4s=4 rational −1025/2048-1025/2048). Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6.

2026-08-27 — q8 scan: unused φ\varphi and n=34n=34

SLSQP plus the Pmax⁡P_{\max} tax (certs/scan_compact.json after the scan is stored). The notebook prints by ceiling to the next 10−410^{-4}, so 1.1020411.102041 is 1.10211.1021 and is not a printed dent.

Predicted rows that print below 1.10211.1021 if faces certify (certs/scan_compact.json):

The cheap live line is the n=33n=33 target raise. Face enumeration is the certificate, not the SLSQP prediction.

2026-08-27 — q8 dent

Same HPS §7 chain with β3≥0.907507\beta_3\ge 0.907507 (aspect 1010, n=33n=33 faces, φ=0.9112\varphi=0.9112):

N<1.1020Z+3.851 Z1/3+0.01320+0.1828 Z−1/3+0.019500 Z−2/3(Z≥4),N<1.1020Z+3.851\,Z^{1/3}+0.01320+0.1828\,Z^{-1/3}+0.019500\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1020Z+3.937 Z1/3(Z≥4).N_c<1.1020Z+3.937\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=33n=33 faces (8,589,934,5918{,}589{,}934{,}591, copositive, 24552455 residual skips, min⁡m⊤Mm>7⋅10−5\min m^\top Mm>7\cdot 10^{-5}). 1/γ=1.1019201/\gamma=1.101920 prints as 1.10201.1020. Cut 10/11>γ10/11>\gamma. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q8/run_all.sh.

2026-08-27 — q9 record replay

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10201.1111>1.1020. Same wall at R=8R=8 (1.1251.125) and at R=9.5R=9.5 (1.105261.10526). Residue: compute/q9/certs/r9_cut.json. Chebyshev D⋅M−1≥1D\cdot M_{-1}\ge 1 on the endpoint slab does not push the R≤9R\le 9 cut above 1/1.1020≈0.907441/1.1020\approx 0.90744 (certs/sharper_cut.json). At R=9.5R=9.5 that Chebyshev number is 0.910290.91029, which would sit above the floor; it is a probe, not a wired lift. The cheap live line stays the proven R=10R=10 split. A still-sharper large-aspect cut would reopen R≤9R\le 9; none is certified.

s>3s>3 along Lemma 4.3 is still residue (two-shell s=4s=4 rational −1025/2048-1025/2048). Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6.

2026-08-27 — q9 scan: n=34n=34 at aspect 10

SLSQP plus the Pmax⁡P_{\max} tax (certs/scan_compact.json after the scan is stored). The notebook prints by ceiling to the next 10−410^{-4}, so 1.1016671.101667 is 1.10171.1017.

Predicted rows that print below 1.10201.1020 if faces certify:

The cheap live line is n=34n=34 at the proven split. Face enumeration is the certificate, not the SLSQP prediction.

2026-08-27 — q9 dent

Same HPS §7 chain with β3≥0.907716\beta_3\ge 0.907716 (aspect 1010, n=34n=34 faces, φ=0.9113\varphi=0.9113):

N<1.1017Z+3.850 Z1/3+0.01320+0.1827 Z−1/3+0.019500 Z−2/3(Z≥4),N<1.1017Z+3.850\,Z^{1/3}+0.01320+0.1827\,Z^{-1/3}+0.019500\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1017Z+3.936 Z1/3(Z≥4).N_c<1.1017Z+3.936\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=34n=34 faces (17,179,869,18317{,}179{,}869{,}183, copositive, 46184618 residual skips, min⁡m⊤Mm>5⋅10−4\min m^\top Mm>5\cdot 10^{-4}). 1/γ=1.1016671/\gamma=1.101667 prints as 1.10171.1017. Cut 10/11>γ10/11>\gamma. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q9/run_all.sh.

2026-08-27 — q10 record replay

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10171.1111>1.1017. Same wall at R=8R=8 (1.1251.125) and at R=9.5R=9.5 (1.105261.10526). Residue: compute/q10/certs/r9_cut.json. Chebyshev D⋅M−1≥1D\cdot M_{-1}\ge 1 on the endpoint slab does not push the R≤9R\le 9 cut above 1/1.1017≈0.907691/1.1017\approx 0.90769 (certs/sharper_cut.json). The cheap live line stays the proven R=10R=10 split. A still-sharper large-aspect cut would reopen R≤9R\le 9; none is certified.

s>3s>3 along Lemma 4.3 is still residue (two-shell s=4s=4 rational −1025/2048-1025/2048). Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6.

2026-08-27 — q10 leftover: n=35n=35 at aspect 10

SLSQP plus the Pmax⁡P_{\max} tax (certs/scan_compact.json after the scan is stored). The notebook prints by ceiling to the next 10−410^{-4}, so 1.101301.10130 is 1.10131.1013.

Predicted rows that print below 1.10171.1017 if faces certify:

R≤9R\le 9 with Q>R/(R+1)Q>R/(R+1) cannot beat 1.10171.1017. Face enumeration is the certificate, not the SLSQP prediction. If faces do not certify, this wrap is residue and the printed leading stays 1.10171.1017.

2026-08-28 — q10 dent

Same HPS §7 chain with β3≥0.908018\beta_3\ge 0.908018 (aspect 1010, n=35n=35 faces, φ=0.9115\varphi=0.9115):

N<1.1013Z+3.849 Z1/3+0.01320+0.1827 Z−1/3+0.019500 Z−2/3(Z≥4),N<1.1013Z+3.849\,Z^{1/3}+0.01320+0.1827\,Z^{-1/3}+0.019500\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1013Z+3.935 Z1/3(Z≥4).N_c<1.1013Z+3.935\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=35n=35 faces (34,359,738,36734{,}359{,}738{,}367, copositive, 83628362 residual skips, min⁡m⊤Mm>5⋅10−4\min m^\top Mm>5\cdot 10^{-4}, min⁡φ=0.911674\min\varphi=0.911674). 1/γ=1.1013001/\gamma=1.101300 prints as 1.10131.1013. Cut 10/11>γ10/11>\gamma. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open. The n=34n=34 target-0.91140.9114 probe was not run and is not an n=35n=35 dent.

Replay: problems/simon-ionization-excess/compute/q10/run_all.sh.

2026-08-28 — q11 record replay

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10131.1111>1.1013. Same wall at R=8R=8 (1.1251.125) and at R=9.5R=9.5 (1.105261.10526). Residue: compute/q11/certs/r9_cut.json. Chebyshev D⋅M−1≥1D\cdot M_{-1}\ge 1 on the endpoint slab does not push the R≤9R\le 9 cut above 1/1.1013≈0.9080181/1.1013\approx 0.908018 (certs/sharper_cut.json). The cheap live line stays the proven R=10R=10 split.

s>3s>3 along Lemma 4.3 is still residue (two-shell s=4s=4 rational −1025/2048-1025/2048). Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6.

2026-08-28 — q11 leftover: n=36n=36 at aspect 10

SLSQP plus the Pmax⁡P_{\max} tax (certs/scan_compact.json). The notebook prints by ceiling to the next 10−410^{-4}, so a value such as 1.101201.10120 is 1.10121.1012.

Predicted rows that print below 1.10131.1013 if faces certify:

R≤9R\le 9 with Q>R/(R+1)Q>R/(R+1) cannot beat 1.10131.1013. Face enumeration is the certificate, not the SLSQP prediction. If faces do not certify, this wrap is residue and the printed leading stays 1.10131.1013.

2026-08-29 — q11 dent

Same HPS §7 chain with β3≥0.908315\beta_3\ge 0.908315 (aspect 1010, n=36n=36 faces, φ=0.9117\varphi=0.9117):

N<1.1010Z+3.849 Z1/3+0.01320+0.1827 Z−1/3+0.019490 Z−2/3(Z≥4),N<1.1010Z+3.849\,Z^{1/3}+0.01320+0.1827\,Z^{-1/3}+0.019490\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1010Z+3.934 Z1/3(Z≥4).N_c<1.1010Z+3.934\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=36n=36 faces (68,719,476,73568{,}719{,}476{,}735, copositive, 1629616296 residual skips, min⁡m⊤Mm>6⋅10−4\min m^\top Mm>6\cdot 10^{-4}, min⁡φ=0.911885\min\varphi=0.911885). 1/γ=1.1009401/\gamma=1.100940 prints as 1.10101.1010. Cut 10/11>γ10/11>\gamma. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open. Higher-target probes on the n=34n=34 or n=35n=35 matrix were not run and are not an n=36n=36 dent.

Replay: problems/simon-ionization-excess/compute/q11/run_all.sh.

2026-08-29 — q12 record replay

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10101.1111>1.1010. Same wall at R=8R=8 (1.1251.125) and at R=9.5R=9.5 (1.105261.10526). R=9.9R=9.9 binding prints 1.101011.10101, which is 1.1011>1.10101.1011>1.1010. Residue: compute/q12/certs/r9_cut.json. Chebyshev D⋅M−1≥1D\cdot M_{-1}\ge 1 on the endpoint slab does not push the R≤9R\le 9 cut above 1/1.1010≈0.9082651/1.1010\approx 0.908265 (certs/sharper_cut.json). The cheap live line stays the proven R=10R=10 split.

s>3s>3 along Lemma 4.3 is still residue (two-shell s=4s=4 rational −1025/2048-1025/2048). Lieb still gives the best integers at Z=2,…,6Z=2,\ldots,6.

2026-08-29 — q12 leftover: n=37n=37 at aspect 10

Copied the q11 encoder / solver / trim / verify stack into compute/q12/. verify_beta3.c and verify_faces.rs now have NMAX 40, so n=37n=37 loads. The stored q11 n=36n=36 faces stay frozen.

SLSQP plus the Pmax⁡P_{\max} tax (certs/scan_compact.json). The notebook prints by ceiling to the next 10−410^{-4}, so 1.100591.10059 is 1.10061.1006.

Predicted rows that print below 1.10101.1010 if faces certify:

The live line is n=37n=37 at the proven split. Face enumeration is the certificate, not the SLSQP prediction. If faces do not certify, this wrap is residue and the printed leading stays 1.10101.1010.

2026-08-29 — q12 wrap: residue

The n=37n=37 dump was stopped incomplete. Four shards, 237−1=137,438,953,4712^{37}-1=137{,}438{,}953{,}471 faces assigned:

On the scanned masks, every shard stays copositive, min⁡m⊤Mm>6⋅10−4\min m^\top Mm>6\cdot 10^{-4}, min⁡φ=0.912085>0.9119\min\varphi=0.912085>0.9119. That does not certify the remaining masks. Predicted printed 1.10061.1006 is uncertified. No raise_*.json, no lift.json. Printed leading stays 1.10101.1010. Checkpoint: compute/q12/certs/leftover_n37.json and the four *.part* dumps. Resume from those files; do not restart a shard with min⁡m⊤Mm>0\min m^\top Mm>0 from zero.

R≤9R\le 9 with the mass-opt cut cannot beat 1.10101.1010. Finite-ZZ integers, N0(Z)−ZN_0(Z)-Z bounded, and s>3s>3 along Lemma 4.3 stay leftover. 1.11681.1168 stays withdrawn. q1 remainders unchanged.

Replay: problems/simon-ionization-excess/compute/q12/run_all.sh (exit 0, residue).

2026-09-03 — q13 record replay

The mass-opt identities still only give Q>R/(R+1)Q>R/(R+1). At R=9R=9 that is 0.90.9, so min⁡(γ9,9/10)≤0.9\min(\gamma_9,9/10)\le 0.9 and the leading is at least 1.1111>1.10101.1111>1.1010. Residue: compute/q13/certs/r9_cut.json. Chebyshev does not reopen R≤9R\le 9 against 1.10101.1010.

2026-09-03 — q13: replace the dump with Gray-code faces

Copied the q12 stack into compute/q13/. The naive mask loop is O(k3)O(k^3) Gauss-Jordan per subset and at n=37n=37 is a multi-day dump. A binary-reflected Gray walk updates MS−1M_S^{-1} in O(k2)O(k^2) when one bin is added or dropped (verify_gray.c). On the stored q4 n=26n=26 matrix it matches the old dump (same interior count 187266187266, same min⁡m⊤Mm\min m^\top Mm, same min⁡φ\min\varphi) at about 9⋅1069\cdot 10^6 masks/s and 22 MB RSS. One thread. The n=37n=37 matrix at target 0.91190.9119 is the live line: predicted printed 1.10061.1006 if faces certify. Face copositivity is the certificate, not the SLSQP prediction. Incomplete search is not a bound.

The first Gray run was killed after about 16 minutes when the worktree directory disappeared (git worktree listed it prunable). Scanned faces at that point were still copositive with min⁡φ=0.912085>0.9119\min\varphi=0.912085>0.9119; the dump was not complete and is not a bound. The enumerator now lives under /tmp with absolute paths and mirrors checkpoints to GRAY_BACKUP. A worktree wipe is not a certificate.

2026-09-03 — q13 dent

The Gray walk finished. 237−1=137,438,953,4712^{37}-1=137{,}438{,}953{,}471 faces, copositive, 00 residual skips, min⁡m⊤Mm>6⋅10−4\min m^\top Mm>6\cdot 10^{-4}, min⁡φ=0.912085>0.9119\min\varphi=0.912085>0.9119. Compact γ=0.908606\gamma=0.908606, 1/γ=1.1005871/\gamma=1.100587 prints as 1.10061.1006. Cut 10/11>γ10/11>\gamma.

Same HPS §7 chain with β3≥0.908606\beta_3\ge 0.908606 (aspect 1010, n=37n=37 faces, φ=0.9119\varphi=0.9119):

N<1.1006Z+3.848 Z1/3+0.01320+0.1827 Z−1/3+0.019490 Z−2/3(Z≥4),N<1.1006Z+3.848\,Z^{1/3}+0.01320+0.1827\,Z^{-1/3}+0.019490\,Z^{-2/3} \qquad(Z\ge 4), Nc<1.1006Z+3.933 Z1/3(Z≥4).N_c<1.1006Z+3.933\,Z^{1/3}\qquad(Z\ge 4).

Certified: certs/lift.json, interval §7 in tighten_leading.py, stdlib verify_lift.py / verify_rebuild.py, C and Rust on the 10/1110/11 algebra, mass-opt scan with no counterexample, stored R=10R=10 n=37n=37 Gray faces. 1.11681.1168 stays withdrawn. q1 remainders unchanged. N0(Z)−ZN_0(Z)-Z bounded still open.

Replay: problems/simon-ionization-excess/compute/q13/run_all.sh.

2026-09-06–07 — q14: a small rational certificate

Read the published record and q1–q13 notes before selecting a leaf. Created compute/LEAVES.md and committed an attempted claim of Nc(Z)<1.1005Z+3.933Z1/3N_c(Z)<1.1005Z+3.933Z^{1/3} for Z≥4Z\ge4 before searching. HPS still lists v1 only; the fetch script and HTML supplied the Theorem 4.2 and Section 7 inputs. Nam and the later bosonic paper do not beat the HPS leading coefficient. URLs are in RESEARCH.md.

The earlier PSD-plus-nonnegative probes tried removing all positive off-diagonal entries or clipping negative eigenvalues. Their failure does not exclude another decomposition. q14 instead maximized a strict common margin in a semidefinite program at target 0.9120.912. The 37 bins use rational edges close to the geometric aspect-ten grid. A rational global kernel floor 0.89410.8941 avoids algebraic rounding in the matrix reconstruction.

Clarabel returned optimal_inaccurate, with a positive candidate margin. That status was not used as a certificate. Rounding supplied two witnesses: a rational symmetric matrix and a separate rational Gram factor. Python checked positive definiteness by exact Schur complements and all entrywise residuals. Rust rebuilt the kernel using a different bin calculation and checked the Gram residuals with outward integer intervals. Both residuals exceed 10−510^{-5}. Both checks imply β3≥0.9087\beta_3\ge0.9087 after the reweighting error and mass-stationary cut at aspect ten.

Each implementation independently checks the HPS coefficients and the published 1.1184<b(3)<1.11851.1184<b(3)<1.1185 window. The rational Python remainder ceiling is below 3.9333.933; Rust uses the coarser verified HPS constant c<1.5855c<1.5855 and still proves the same printed remainder. No earlier face dump, success flag, or numerical minimizer is a premise of the new bound.

Dent:

Nc(Z)<1.1005Z+3.933Z1/3(Z≥4).N_c(Z)<1.1005Z+3.933Z^{1/3}\qquad(Z\ge4).

This beats the notebook leading 1.10061.1006 and the HPS printed leading 1.11851.1185. The bounded-excess conjecture remains open. The proof, certificate, independent verifiers, and rejection controls are in compute/q14/. The search stopped after this certificate, as requested.

Replay: problems/simon-ionization-excess/compute/q14/run_all.sh. Exit 0 means compute/q14/CLAIM.md holds. Covering and all share/ folders were left untouched.

2026-09-12 — q15: refine the compact partition

Read AGENTS, PROBLEM, LEAVES, the q14 claim and proof, and the published HPS inputs. Both q14 finite verifiers pass, including the published b(3)b(3) window and the 3.9333.933 remainder. HPS still lists v1 only. Added a new leaf before searching: 40 rational bins at aspect ten, target 0.91240.9124, aiming to reach the existing 10/1110/11 mass-stationary cut. The attempted inequality is in q15/CLAIM.md. Only one numerical search will run at a time, with one BLAS thread and a memory limit. Stop by 2026-09-12 07:00 UTC; no new heavy job after 06:40 UTC. No usage-limit resets are authorized.

2026-09-12 — q15 cutoff: residue

The initial claim and leaf were committed as 8aafbe3. The temporary SDP dependency install failed on sandbox DNS; an escalated retry was requested, and the tool call remained pending until the user interrupted it at the cutoff. No SDP search ran, and no q15 witness or verifier was produced. The proposed leading 1.11.1 is unproved. Both q14 verifiers had passed before the stop, so the certified bound remains Nc(Z)<1.1005Z+3.933Z1/3N_c(Z)<1.1005Z+3.933Z^{1/3} for Z≥4Z\ge4. Marked the leaf residue and made the unfinished driver return 2 explicitly. No usage-limit resets were used. The final commit and unmerged PR are a cutoff wrap, with no further hunting.