Positional schemes set the default spectral algebra of attention heads: previous-token heads are rotational under RoPE and content-like under absolute/ALiBi, as a post-function fingerprint rather than a hard constraint.
From embeddings to dyson series: Transformer mechanics as non-hermitian operator theory, 2026
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Fingerprint, Not Blueprint: How Positional Schemes Set the Default Spectral Algebra of Attention
Positional schemes set the default spectral algebra of attention heads: previous-token heads are rotational under RoPE and content-like under absolute/ALiBi, as a post-function fingerprint rather than a hard constraint.