Zeta--von Mangoldt bridge for Mertens constants #
This module begins the constant-identification workline. It records the
analytic normalization at s = 1; connecting it to hard prime cutoffs is the
remaining Abelian bridge.
The logarithm of zeta, expressed through the von Mangoldt Dirichlet
series, has the standard normalized O(s - 1) behavior at 1 from the
right.
The prime Euler-log expansion of the zeta logarithm. This is the analytic prime-side counterpart of the finite product bridge.
Above the line of absolute convergence, the prime Euler-log series is summable.
The prime Dirichlet series is summable in the half-plane Re(s) > 1.
The quadratic-and-higher analytic correction is summable above Re(s)=1.
Algebraic decomposition of the Euler-log summand into its prime Dirichlet
term and its quadratic-and-higher correction. Summability is kept explicit:
establishing it uniformly as s → 1⁺ is part of the Abelian workline.
Unconditional Euler-log decomposition in the half-plane of absolute convergence.
Real specialization of the prime Euler-log expansion. This is the
normalization interface used by the Abelian finite-part argument at s = 1.