E Evidence Press

Evidence Press

Press releases for new research, published with the evidence attached. Each release explains one paper twice — once for curious readers, once for specialists — with the paper, code, data, and checks one click away.

Standing programme

All releases

27 September 2026

When interacting spins have a free spectrum

A graph criterion characterises whole-spectrum freeness at every coupling under faithful Pauli realisation; exact sector certificates reveal a larger, carefully distinguished class.

availability and archiving · internal replay · 5 dimensions not assessed

27 September 2026

How sharply does a metric leave equality?

Exact first-order rates describe how the negative-type gap opens near every specified split metric, with a different, quadratic transition at four points.

availability and archiving · internal replay · 5 dimensions not assessed

26 September 2026

Which histories can the data certify?

Explicit information geometry gives an anytime-valid route to the complete compatible set—and identifies boundary questions that remain answerable when complete resolution is impossible.

availability and archiving · 5 dimensions not assessed

26 September 2026

Matrix invariants: nine new Hilbert series

Exact counts of the invariants of three to ten 4×4 matrices and of three 5×5 matrices, confirming Berele's denominator conjecture in these nine cases, plus a plane-septic Hilbert series proved to degree 760.

availability and archiving · internal replay · 5 dimensions not assessed

26 September 2026

Invariants of plane curves of degree 7, 8 and 9

Exact Hilbert series for the invariants of plane curves of degrees 7, 8 and 9, beyond the previous record of degree 6, by known methods made fully auditable.

availability and archiving · internal replay · 5 dimensions not assessed

26 September 2026

Ptolemaic metrics: the sharp exponent

An analytic proof candidate gives the exact distance-power threshold guaranteed for every finite Ptolemaic metric, with strictness below it and explicit examples showing that it cannot be raised.

availability and archiving · internal replay · 5 dimensions not assessed

25 September 2026

The Davies–Levitin lens, for every n

A candidate proof that every complex eigenvalue of the Davies–Levitin indefinite tridiagonal pencil lies in the lens where its two Gershgorin disks overlap, for every matrix size.

availability and archiving · internal replay · 5 dimensions not assessed

24 September 2026

Seven terms are not enough

A candidate sparsity theorem excludes every degree-twenty counterexample with seven or fewer terms in centered form.

availability and archiving · internal replay · 5 dimensions not assessed

24 September 2026

Eighteen vertices, and a DeVos counterexample

A candidate study of the densest open case of Seymour's conjecture proves structural limits, certifies that every counterexample has at least 18 vertices, and refutes DeVos's conjecture as printed in Sullivan's survey.

availability and archiving · internal replay · 4 dimensions not assessed

23 September 2026

Where to put the sensors

An ordered placement rule classifies generic local identifiability in bidirected chains with arbitrary inputs, outputs and leaks.

availability and archiving · internal replay · 5 dimensions not assessed

22 September 2026

Where noise can reach

Drift-reachable noise determines the candidate existence domain for operator-valued Wishart covariance processes.

availability and archiving · internal replay · 5 dimensions not assessed

20 September 2026

One model, five steady states

A rational example and exact root-count certificate establish five positive equilibria in the full two-ligand model.

availability and archiving · internal replay · 5 dimensions not assessed

20 September 2026

Lost links, finite choices

A minimal counterexample, a complete coefficient-fiber classification, and the exact condition that restores identification.

availability and archiving · internal replay · 5 dimensions not assessed

19 September 2026

Seven points. Nineteen roots.

An exact tensor spectrum, a real eigenvalue without real eigenvectors, and a hidden genus-three curve.

availability and archiving · internal replay · 5 dimensions not assessed

12 September 2026

Roots that never meet

Uniform quartic boundary interlacing, with an exact affine point count using external rigidity.

availability and archiving · internal replay · 5 dimensions not assessed

12 September 2026

When two forms give a smooth space

The reduced parameter space is smooth exactly when every Jordan pencil block has dimension two.

availability and archiving · internal replay · 5 dimensions not assessed

9 September 2026

Moment equations have no uniform degree bound

A constructive proof candidate embeds graph faces into full moment models, forcing equations of arbitrarily large necessary degree and producing an intrinsically nonnormal example.

availability and archiving · internal replay · 5 dimensions not assessed

8 September 2026

When drift speeds up a small world

Candidate proof of the stated AIM mixing bounds for four fixed-weight clock conventions: logarithmic in the denser regime, square-root up to polylogarithmic factors in the sparser regime.

availability and archiving · internal replay · 5 dimensions not assessed

8 September 2026

Biased shuffles still cut off

Arbitrary bounded product weights admit a cutoff proof with mixing order n log n and window upper bound n log log n.

availability and archiving · internal replay · 5 dimensions not assessed

8 September 2026

Beyond the cross-polytope

A fourteen-vertex body in six dimensions has exact zonoid enclosure factor 122/65, exceeding 15/8 by 1/520.

availability and archiving · internal replay · 5 dimensions not assessed

8 September 2026

A shape constraint breaks near the Gaussian

Symmetric stable densities approach a Gaussian locally while their best global power-concavity exponent deteriorates logarithmically.

availability and archiving · internal replay · 5 dimensions not assessed

8 September 2026

Orthogonal algebraicity stops at three

A uniform classification candidate: every fixed genuine orthogonal representation has an algebraic tensor-multiplicity series exactly in dimensions one, two and three.

availability and archiving · internal replay · 5 dimensions not assessed

8 September 2026

When tree symmetry admits a torsor

An exact criterion and an all-path-count classification show when spanning trees support a symmetry-compatible critical-group action.

availability and archiving · internal replay · 5 dimensions not assessed

8 September 2026

Partial progress on three-coloured paths

A five-colouring theorem for a mixed cover class, conditional finite exclusions and explicit repair obstructions; the parent problem remains unresolved.

availability and archiving · internal replay · 5 dimensions not assessed

8 September 2026

The Picard group of a graph product

An integral cut–cycle argument classifies ridge and full tropical Picard groups, with an explicit multigraph convention and commuting diagonal flips.

availability and archiving · internal replay · 5 dimensions not assessed

7 September 2026

One affine factor, every minor

A uniform proof candidate gives nonnegative monomial coefficients for every Toeplitz minor of the single affine elementary-symmetric sequence.

availability and archiving · internal replay · 5 dimensions not assessed

7 September 2026

A small trace matrix for the Hurwitz form

A compact trace-determinant formula candidate gives the global degree-30 essential Hurwitz form, with a denominator-cancellation proof and symmetric corollary.

availability and archiving · internal replay · 5 dimensions not assessed

7 September 2026

Eight points without hidden nilpotents

A computer-assisted proof candidate claims reducedness of the Hilbert scheme of eight points in affine four-space over algebraically closed characteristic-zero fields.

availability and archiving · internal replay · 5 dimensions not assessed

7 September 2026

One peak under free addition

An analytic proof candidate that free addition preserves every symmetric unimodal probability law.

availability and archiving · internal replay · 5 dimensions not assessed

6 September 2026

Shuffling a constrained path

A two-cut entropy argument gives a proof candidate for n log n mixing of the original Dyck-path random-transposition rejection walk.

availability and archiving · internal replay · 5 dimensions not assessed

6 September 2026

Skipping one Potts update

An exact five-vertex example shows that omitting one predetermined update can leave a ferromagnetic three-colour Potts model closer to equilibrium at a fixed horizon.

availability and archiving · internal replay · 5 dimensions not assessed

6 September 2026

Eight states an RBM cannot fit

An explicit eight-state distribution cannot be approximated arbitrarily well by a classical binary model with four visible and three hidden units.

availability and archiving · internal replay · 5 dimensions not assessed

5 September 2026

Jordan blocks grow linearly

A constructive proof candidate shows that non-backtracking Jordan blocks can grow linearly with graph order, even under one fixed maximum-degree bound.

availability and archiving · internal replay · 5 dimensions not assessed

5 September 2026

An exact three-bit KL radius

A computer-assisted proof candidate gives the exact worst-case error of two Bernoulli products on three bits, attained only by the two uniform parity distributions.

availability and archiving · internal replay · 5 dimensions not assessed

5 September 2026

Sharp Hadamard powers of quartics

A written proof candidate gives the exact exponents preserving real roots for every positive-coefficient quartic, with a sharp threshold and an exclusive equality case.

availability and archiving · internal replay · 5 dimensions not assessed

4 September 2026

Fixed-d Toeplitz coherence obstruction

For every fixed finite d at least two in characteristic zero, a two-color Toeplitz family gives a morphism of finite-degree-presented FI_d-modules with no kernel inside that subcategory.

availability and archiving · internal replay · 5 dimensions not assessed

4 September 2026

Four-factor Schubert deformation obstruction

Coordinate Schubert surface unions are Cohen–Macaulay exactly for connected active graphs, but deform to integral surfaces exactly for complete multipartite graphs.

availability and archiving · internal replay · 5 dimensions not assessed

3 September 2026

Four-term-AP Ramsey diameter 36

Checked SAT certificates establish that 27 is the minimum inside [1,37]; the unrestricted sparse value and the AIM asymptotic questions remain open.

availability and archiving · internal replay · 5 dimensions not assessed

1 September 2026

Fisk deletion interlacing through five

Exact positive-coefficient Bezout certificates prove real negative roots and strict arbitrary-deletion interlacing for Fisk's 3x3 Toeplitz-minor transform through five positive alphabet entries; the all-degree and zero-boundary problems remain open.

availability and archiving · internal replay · 5 dimensions not assessed

1 September 2026

Full-HC4 degree-five structural reductions

Exact certificates narrow a degree-five repeated-factor boundary of full HC4—the all-degree Hessian Conjecture in four variables—without proving secant closure, full HC4 or JC2.

availability and archiving · internal replay · 5 dimensions not assessed

1 September 2026

Pinching a free normal cover

A fixed free normal cover is argued to give infinitely many all-Fuchsian critical exponents approaching one from below, with an explicit linear pinching rate and a carefully limited relation to AIM Problem 4.3.

availability and archiving · internal replay · 5 dimensions not assessed

31 August 2026

Degree-independent ternary rhombus criterion

A factor-3 rhombus condition is proposed as a degree-independent ternary stability criterion, while three higher-dimensional readings meet explicit obstructions and the normalized cases in four through six variables remain open.

availability and archiving · internal replay · 5 dimensions not assessed

31 August 2026

Factorial spikes and FI-Noetherianity

A characteristic-free sub-FI-algebra has affine Noetherian components at every finite width but a strict infinite chain of FI-ideals across widths.

availability and archiving · internal replay · 5 dimensions not assessed

31 August 2026

Unbounded BNS component orbits

For every m>=2, an explicit linearly growing free-by-cyclic group has first Betti number m+2, exactly 2m+2 BNS components, and at least m+1 component orbits under its outer automorphism group.

availability and archiving · internal replay · 5 dimensions not assessed

30 August 2026

Four-element rowmotion obstruction

A non-graded four-element rooted tree has infinite-order birational and piecewise-linear rowmotion, and exhaustive exact replay proves that no smaller finite poset can do so.

availability and archiving · internal replay · 5 dimensions not assessed

30 August 2026

Four-point cubical-excision failure

A directed four-point closure space sends a nonzero integral relative one-cycle to zero, disproving interior-cover excision for normalized (J+, boxdot)-cubical homology.

availability and archiving · internal replay · 5 dimensions not assessed

30 August 2026

Minimal negative-square-energy valley

A five-vertex graph gives the smallest exact decrease-then-increase in negative adjacency square energy, refuting universal prescribed-order peak-unimodality while leaving favourable-order existence open.

availability and archiving · internal replay · 5 dimensions not assessed

30 August 2026

Pure-tensor analytic-rank obstruction

A side-two pure trilinear tensor refutes one literal, unnormalised analytic-rank tensorization comparator, while the powered-identity diagonal ratio remains exactly (k/n)^m.

availability and archiving · internal replay · 5 dimensions not assessed

29 August 2026

Extremes do not always maximise

A four-state monotone reversible heat-bath chain is furthest apart at two incomparable states—not its minimum and maximum—at every positive time.

availability and archiving · internal replay · 5 dimensions not assessed

29 August 2026

Three-layer popular-difference obstruction

An eight-point subset of Z/21Z refutes the strict one-third AIM question, while a three-layer family obstructs every fixed threshold below 2/5 in odd cyclic groups.

availability and archiving · internal replay · 5 dimensions not assessed

28 August 2026

Amplitude modules and a Bautin cutoff

Two all-amplitude family classifications and a general ordinary coefficient-Bautin bound turn inverse support into explicit modules, attainable ranks and a finite d−1 cutoff.

availability and archiving · internal replay · 5 dimensions not assessed

28 August 2026

O-01d0 polar-fibre reductions

Exact polar-fibre and Hermite reductions, four rejected proof architectures, and a four-gate executable handoff sharpen an open all-index transversality problem.

availability and archiving · internal replay · 5 dimensions not assessed

25 August 2026

LPS structural reductions

A complementary-minor duality compresses a growing Polydegree obstruction to a fixed-width flag, while repaired quartic and p-adic certificates expose the remaining uniform radical-membership target.

availability and archiving · internal replay · 5 dimensions not assessed

24 August 2026

Extensions around a claimed complex S6

Exact arithmetic and symbolic checks, a standalone conductor-adjoint theorem candidate, and source-conditional Hodge and deformation calculations extend a claimed—but unverified—complex structure on S6.

availability and archiving · internal replay · 5 dimensions not assessed

24 August 2026

A 48-vertex cubic counterexample

An explicit connected cubic graph has minimum maximal matching number 15 but independent domination number 16, lowering the candidate counterexample-order upper bound from 50 to 48.

availability and archiving · internal replay · 5 dimensions not assessed

23 August 2026

The full e=4 Polydegree column

An exact residue branch, 14,985 outward-rounded finite certificates and a uniform Fourier envelope yield the e=4 Polydegree containment for every degree d at least 2.

availability and archiving · internal replay · 4 dimensions not assessed

22 August 2026

Certified three-item JRP gap

A producer-side candidate exact oracle gives a rational three-item max-frequency relaxation-gap lower bound of 1.1487291464748206... and a verifier-checked route to instance-specific logistics stress tests.

availability and archiving · internal replay · 5 dimensions not assessed

21 August 2026

Finite-sample affine diversification

A reconstructed tree can fit many speciation-and-extinction histories. Under a fixed-stem model, this candidate turns that ambiguity into rigorous finite-sample decisions—showing which conclusions survive every compatible history and when plug-in estimates or finite CRABS clouds are too confident.

availability and archiving · internal replay · 5 dimensions not assessed

20 August 2026

The combined support and moment atlas

A combined unrefereed candidate extends the all-degree fixed-seed atlas to every polynomial amplitude, specified zero-cycles, all endpoint moments for q(P)≤3, and an exact Laurent local-channel criterion.

availability and archiving · internal replay · 4 dimensions not assessed

14 August 2026

Frankl entropy concavity obstruction

An exact counterdirection blocks a printed joint-concavity step in Liu's arXiv v1, while independent three-atom reductions, endpoint control and bounded certificates survive; no new Frankl bound is proved.

availability and archiving · internal replay · 5 dimensions not assessed

14 August 2026

Furter's R(3) through n=299

Exact same-prime special-fibre certificates prove Furter's R(3,n) for every 1 <= n <= 299, while a fixed-prime zero-band theorem and an executable challenge isolate what remains open.

availability and archiving · internal replay · 5 dimensions not assessed

13 August 2026

Aggregation without sufficiency

A summary can be correct yet still omit information needed for a decision; an aggregation licence tests what that summary may safely determine.

availability and archiving · internal replay · 5 dimensions not assessed

12 August 2026

The full e=3 Polydegree column

A Jacobian smooth-point reduction, Fourier-limit persistence, an exact eventual envelope and 97,033 finite Arb certificates prove the e=3 containment for every degree d at least 2.

availability and archiving · internal replay · 5 dimensions not assessed

11 August 2026

What a finite expected spectrum can identify

A finite expected site-frequency spectrum observes only finitely many exponential projections; this corrected candidate proves why sharp calendar-window targets can remain unidentified and supplies an exact positive collision.

availability and archiving · internal replay · 5 dimensions not assessed

11 August 2026

When a unique answer is not an identified answer

Across APC models, epidemic observation processes, sign-restricted SVARs and aerosol–climate inference, a unique fitted answer can come from a selector rather than from the observations.

availability and archiving · internal replay · 5 dimensions not assessed

11 August 2026

Wales 20 mph casualty attribution

The first-year casualty decline is descriptively reproducible, but the frozen aggregate evidence identifies neither the point value nor the sign of the policy effect on affected roads.

availability and archiving · internal replay · 5 dimensions not assessed

9 August 2026

Bilateral deficiency in regular-DIM graphs

A residual-SAT parameter exactly measures the independent-domination gap for regular graphs equipped with a dominating induced matching, yielding connected cubic-DIM families and a DIM-qualified minimum order of 50.

availability and archiving · internal replay · 4 dimensions not assessed

9 August 2026

Fixed-seed cyclic rank from inverse roots

A conditional theorem turns fixed-seed cyclic rank into a count of independent inverse-root functions, classifies every indecomposable rank-one to rank-three phase, and exposes block fusion as the remaining compositional obstruction.

availability and archiving · internal replay · 5 dimensions not assessed

9 August 2026

Exact Smith invariants of binary-form factorisation

A candidate all-factor determinant-line theorem and exact Smith calculation replace the rank-one degree difference by a complete character-lattice invariant.

availability and archiving · internal replay · 5 dimensions not assessed

9 August 2026

Hahn--Ewens spectrum and mixing transition

A stabiliser--cycle chain has the full Hahn count spectrum, an exact binomially layered word spectrum, and a parameter-dependent sharp stationary-average chi-square transition on the N/log N scale.

availability and archiving · internal replay · 5 dimensions not assessed

9 August 2026

Smooth-point certificates for Polydegree containments

The Lewis-Perry-Straub auxiliary determinant is a Jacobian: an exact Euler syzygy turns its specialisation test into a smooth-point criterion and yields a smaller Hensel certificate, while the uniform e=3 affine theorem remains open.

availability and archiving · internal replay · 5 dimensions not assessed

8 August 2026

Conditional sharp partial identification of diversification histories

For a fixed pulled speciation signal and explicit model restrictions, an affine measure coordinate turns alternative birth-death histories into a tractable feasible set with sharp bounds, incompatibility certificates, and a precise account of why finite random searches can miss extremes.

availability and archiving · internal replay · data and environment reproducibility · 5 dimensions not assessed

8 August 2026

The bordered Jacobian of binary-form multiplication

A candidate integral identity expresses every bordered Jacobian of binary-form multiplication as one resultant times one pairing with the lost scaling direction.

availability and archiving · internal replay · 3 dimensions not assessed

8 August 2026

Certified commitment horizons in dynamic lot sizing

An exact-rational candidate separates an abstract forced-source path model from its classical lot-sizing interpretation, then certifies how far forecast demand may move before a protected setup prefix can cease to be compulsory among optimal plans.

availability and archiving · internal replay · 5 dimensions not assessed

8 August 2026

The exact two-item cap gap in joint replenishment

Two periodic item schedules can share a setup cost only when their order times align. This candidate proves finite exact certification under average-rate constraints and shows that the standard two-item cap relaxation can be optimistic by at most—and sometimes exactly—about 11.19 per cent.

availability and archiving · internal replay · 5 dimensions not assessed

8 August 2026

TxGraffiti Conjecture 15/3 resolution

A connected cubic graph on 50 vertices has minimum maximal matching number 15 but independent domination number 16, giving a bounded candidate counterexample to the stated regular-graph inequality.

availability and archiving · internal replay · data and environment reproducibility · 5 dimensions not assessed

2 August 2026

Random reshuffling as a baseline policy

In an exact quadratic model of learning, some fair choices inside ordinary data shuffling admit a same-baseline value certificate; popular ordering proxies can fail without bound, while global threshold ordering is NP-complete when the stable step is instance-encoded and approaches 2.

availability and archiving · internal replay · 6 dimensions not assessed

1 August 2026

Irreducible pushforwards and quartic transitions

A stalled attack yields two standalone tools: one turns irreducibility into geometric separation, and the other detects exact rank collapse in a quartic transition; Furter's R(3) remains open.

availability and archiving · internal replay · 6 dimensions not assessed

1 August 2026

Stocks are not flows

England's tenure shift is real; the aggregate housing data do not reveal how much, if any, was caused by rising resources at the top.

availability and archiving · internal replay · 6 dimensions not assessed

30 July 2026

Exact Recht–Ré inequalities and sampling dynamics

An exact low-length matrix-inequality classification becomes a metric-aware theory of data ordering: mean iterates, quadratic risk, fresh reshuffling, single shuffle and replica averaging can rank the same sampler differently.

availability and archiving · internal replay · 5 dimensions not assessed

28 July 2026

Degree-difference principle and affine slices

A clean determinant identity for the map that multiplies two polynomials and records their resultant — and a study of the geometric slices where Jacobian-conjecture-style questions live.

availability and archiving · internal replay · 6 dimensions not assessed

28 July 2026

Erdős 848: exact answer for all N

A certificate-backed determination that the answer to an Erdős–Sárközy extremal problem is exactly ⌊(N+18)/25⌋ for every N — closing the gap between known asymptotic results and small cases.

availability and archiving · internal replay · 6 dimensions not assessed

28 July 2026

Exotic affine three-spheres

A natural slice of polynomial factorisation space is claimed to be an exotic affine three-sphere — a shape that mimics a familiar one without being it — while every quadratic–cubic slice is obstructed from being ordinary affine space.

availability and archiving · internal replay · 6 dimensions not assessed

28 July 2026

Reducible incidence divisors

A divisor classification and a conditional screening theorem that isolates one affine-space slice inside a precisely defined positive two-factor binary-form architecture; it does not classify the later Gallagher or Gao counterexample families.

availability and archiving · internal replay · 6 dimensions not assessed

28 July 2026

VR2(K4) = 20

Colour every edge among 20 points red or blue and you cannot avoid two completely separate single-colour foursomes — while a carefully built 19-point colouring can. A companion result to z(20) = 6.

availability and archiving · internal replay · 6 dimensions not assessed

28 July 2026

z(20) = 6 (Erdős problem 758)

Every graph on 20 vertices can be split into six parts, each a clique or an independent set — and 6 is best possible. A computer-assisted proof, released with its full certificate chain, settles the first open case of an Erdős–Gimbel problem.

availability and archiving · internal replay · 6 dimensions not assessed