This work introduces observation contact spectra, revealing new insights into analytic degeneration and scaling implications.
This work introduces observation contact spectra for analytic observation operators near rank-loss loci. Smith exponents classify the local analytic degeneration, determine singular-value and Fisher-information scaling, and support finite-jet recovery, serial composition laws, divisorial arc analysis, and exact Gaussian minimax resolution.
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Hiroyuki Shioiri (2026) studied this question.
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