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boundary

Digit Collisions and the Cubic Law

The collision energy is the cube of the base, split one third to two thirds between diagonal and off-diagonal poles. The cubic constant is unity.

June 4, 2026 · 24 min
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boundary

The Orbit's Edge

The orbit is multiplicative. The boundary is additive. The Jacobi sum is the bridge. Two laws from the time of Gauss show up because the boundary forced the character to look at -2.

May 30, 2026 · 25 min
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boundary

Carry Boundaries and Bernoulli Spectra

The collision invariant turned out to be a special case. This paper finds the source underneath it. The floor provides the weight. The boundary provides the geometry. The spectrum is their product.

May 29, 2026 · 17 min
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essay

The Structure That Survives

The collision invariant is the part of the arithmetic that remains when everything else has been allowed to move. This essay explains the name and the analogy to noble gases.

April 15, 2026 · 9 min
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preprint

The Collision Spectrum

The Fourier coefficients factor through Bernoulli numbers and L-function values at s = 1.

March 31, 2026 · 19 min
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preprint

The Collision Transform

The collision periodic table, centered and Fourier-transformed. It cancels at s = 1.

March 30, 2026 · 17 min
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preprint

The Collision Invariant

A finite signed table for every prime, built from the digit function. The collision invariant.

March 29, 2026 · 21 min
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avoidance

The Analytic Collision Transform

The same finite diagonal geometry now carries an exact identity at every s in the critical strip. The analytic factors move. The collision content does not.

January 24, 2026 · 10 min
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avoidance

The Collision Spectrum and the L-Function Landscape

The Fourier coefficients factor through Bernoulli numbers and diagonal character sums. The collision weight encodes L-function values at s=1. The digit function meets the critical strip.

March 10, 2025 · 19 min
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avoidance

The Spectral Repulsion

Forty percent of the expected overlap between collision weights and prime character sums is missing. The ratio is stable across every prime base from 3 to 37.

January 9, 2025
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collision

The Double Transversality

The collision invariant and the prime distribution avoid each other across the strip. The avoidance persists at every lag, across every base tested.

October 3, 2024
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collision

The General Neutrality Theorem

Neutrality holds at every odd prime, not just 3. The same reflection identity, the same vanishing, at every scale. The anti-correlation between collision weights and prime sums is universal.

July 21, 2024 · 21 min
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collision

The Neutrality Theorem

The mod-3 component of the collision transform vanishes. Remove it and the sum explodes. Neutrality is not decorative. It is structural.

April 23, 2024
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collision

The Collision Transform and the Critical Strip

The centered sum converges at s=1. Push it below. The penetration depth measures how far into the critical strip the collision signal survives.

January 13, 2024 · 16 min
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collision

The Collision Periodic Table

Forty integers, determined by the last two digits of every prime past 100. Every complement pair sums to exactly -1. At base 12, the table sorts musical intervals by tension.

December 2, 2023
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collision

The Centered Collision Sum

Subtract the family bias and the divergence vanishes. The centered sum converges at s=1, and the rate of convergence is controlled by the classical zero-free region.

October 6, 2023 · 14 min
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collision

The Collision Fluctuation Sum

The collision deviations, summed over primes, drift downward at the Mertens rate. The drift has a sign, a constant, and a structural origin in the digit function.

April 28, 2023 · 20 min
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collision

Silent Primes

At seven primes in base 10, the collision count is exactly zero. The recipe that finds them involves the bin partition and a specific floor-function identity.

January 21, 2023 · 35 min
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collision

The Character Structure of the Collision Fluctuation

The collision fluctuation decomposes over Dirichlet characters. Only the odd characters survive, forced there by the complement involution. This is where the algebra begins.

October 14, 2022 · 16 min
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spectral

Bin Derangements and the Gate Width Theorem

Nine multipliers produce zero collisions at every prime in base 10. The count is exactly b-1, independent of the prime. The proof identifies the deranging set explicitly.

July 4, 2022 · 11 min
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spectral

Phase-Filtered Ramanujan Sums and the Spectral Gate

The last digit of a prime controls which spectral modes survive. A phase filter built from Ramanujan sums explains the gate, and the gate width is universal across primes.

April 17, 2022 · 13 min
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spectral

The Autocorrelation Formula

The cross-spectral function had resisted a closed form. It turned out to factor through the digit function evaluated at shifted arguments. The formula closes the spectral chain.

January 26, 2022 · 13 min
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spectral

The Spectral Power of the Digit Function

The squared bin sizes of the digit function control the alignment limit, the spectral structure, and the collision count. One object, three roles.

October 26, 2021 · 12 min
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spectral

The Spectral Structure of Fractional Fields

The eigenvalues of the cross-alignment matrix are determined by the cyclic autocorrelation of the digit function. One formula gives the entire spectrum.

July 13, 2021 · 15 min
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spectral

The Cross-Alignment Matrix

Compare every fraction to every other, digit by digit. The result is a symmetric matrix whose eigenvalues encode the internal structure of the fractional field.

April 11, 2021 · 18 min
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spectral

The Coherence Decomposition

Alignment splits into two parts: a focused component from the repetend orbit, and a pairwise component from cross-matches. The decomposition explains why some integers are more coherent than others.

January 12, 2021 · 17 min
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preprint

Primes and the Major Scale

The primes that organize long division are the same primes that organize musical pitch. In base 30, the alignment deficit lattice produces the just major scale. In base 12, the Pythagorean comma.

October 31, 2020 · 18 min
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alignment

The Three-Tier Theorem

Every positive integer falls into one of three tiers. The mirror bound from the nines complement forces everything with rough part past 7 below the golden line. The classification is unconditional.

October 16, 2020 · 15 min
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alignment

The Alignment Limit for All Primes

Past the digit-partitioning boundary, the alignment splits into lanes. Different smooth factors choose different lanes, and the limit may not exist as a single number. But no prime past 3 reaches the golden threshold.

July 7, 2020 · 16 min
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alignment

Digit-Partitioning Primes and the Alignment Formula

In base 10, exactly three primes produce total digit separation: 3, 7, and 11. Three different mechanisms, one shared condition, one universal formula.

April 3, 2020 · 15 min
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alignment

Three and the Golden Ratio

A cubic equation has a root in (0,1) for every prime. The golden ratio's minimal polynomial divides it at exactly one. The remainder names the prime 3.

January 19, 2020 · 10 min
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About

This site is the public record of a research program I have been developing since 2009. It starts with one observation about long division. The floor quotient $\lfloor br/p \rfloor$ that produces repeating decimals also produces, through its collision table, exact $L$-function special values at $s =

January 1, 2020 · 12 min
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Alexander S. Petty  |  ©2009-2026