Moebius Function

number-theory · 37 views
number-theoryarithmetic

What It Is

Moebius mu(n) in {-1, 0, +1} --- 0 on non-squarefree n (~39.2% by density), (-1)^omega(n) on squarefree n. Generator of multiplicative number theory via the identity sum_{d|n} mu(d) = [n=1]; stationary ternary sequence whose partial sum is Mertens.

Interpretation

Standard analysis sees: bounded / light-tailed; few distinct values; aperiodic / broadband; homoskedastic; monofractal; high-dimensional / space-filling; stationary. The atlas finds no named structure, but the source is distinctively extreme on SL(2,ℝ) (Thurston):parabolic_fraction (+3.4z) — beyond what the standard bank predicts for it.

What standard analysis sees
tail heaviness0.15
asymmetry0.36
occupancy0.09
short-range corr0.23
long-range memory0.30
spectral colour0.79
periodicity0.15
complexity0.62
time-irreversibility0.31
volatility clustering0.06
multifractality0.07
dimensionality0.99
nonstationarity0.12
What the atlas adds
Atlas-extreme metrics the standard bank can’t predict for this source
SL(2,ℝ) (Thurston):parabolic_fraction+3.4zbank-miss 2.7σ
Boltzmann:dominant_lag+3.3zbank-miss 1.6σ
Zariski:algebraic_residual+3.1zbank-miss 3.5σ

Composition

dtypeint8
range[-1, 1]
unique values3 / 16384
mean ± std-0.00397 ± 0.78

Fixed alphabet — only 3 distinct symbols across 16384 samples.

Render Gallery

Atlas Position

Nearest neighborDistance
Phi-Squared β-Shift3.77cross-origin
Free Group F₂ Walk4.25cross-origin
Codon Usage4.31cross-origin

Open in Atlas →

Which Geometries Light Up

CayleyCayley:delta_hyp_normrank 2/3070.2628
Mostow RigidityMostow Rigidity:laplacian_perturbation_stabilityrank 1/3071.0000
Mostow RigidityMostow Rigidity:volume_sum_jitter_stabilityrank 1/3070.9741
ZariskiZariski:algebraic_residualrank 2/3070.0716
ZariskiZariski:residual_sloperank 306/307-5.7252
in algorithmic-bytes
alphabetical
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