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In constructions of analytical solutions to open string field theories puregauge configurations parameterized by wedge states play an essential role.These pure gauge configurations are constructed as perturbation expansions andto guaranty that these configurations are asymptotical solutions to equationsof motions one needs to study convergence of the perturbation expansions. Wedemonstrate that for the large parameter of the perturbation expansion thesepure gauge truncated configurations give divergent contributions to theequation of motion on the subspace of the wedge states. We perform thisdemonstration numerically for the pure gauge configurations related to tachyonsolutions for the bosonic and the NS fermionic SFT. By the numericalcalculations we also show that the perturbation expansions are cured by addingextra terms. These terms are nothing but the terms necessary to make valued theSen conjectures.

Pure Gauge Configurations and Tachyon Solutions to String Field Theories Equations of Motion