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Comments on Arithmetic Teichmuller Spaces

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  • Joshi's arithmetic holomorphic structures are the same objects as those of Mochizuki's inter-universal Teichmüller theory.

    Overstates. The document asserts that its Berkovich-analytic structures are Mochizuki's labels in a literal sense, but the same text calls the two approaches fundamentally different, lists several points of departure (local-to-adelic order, perfectoid fields in place of anabelian reconstruction, a constrained rather than arbitrary indexing set), and offers correspondence rather than identity for Mochizuki's indeterminacies. Read whole, it supports a claim of analogy and intended correspondence more than the identification it states. Sep 18, 2026

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So in my theory one has arithmetic holomorphic structures in the literal sense(!) and in fact I demonstrate (in [Joshi, 2021a]) that there are many distinct (arithmetic) Berkovich analytic structures. Hence there are also many distinct labels in Mochizuki's sense too.

As quoted

In [Joshi, 2021a], I substantially deepen this idea: in my theory labels correspond to distinct (arithmetic) Berkovich analytic (i.e. holomorphic) structures. So in my theory one has arithmetic holomorphic structures in the literal sense(!) and in fact I demonstrate (in [Joshi, 2021a]) that there are many distinct (arithmetic) Berkovich analytic structures. Hence there are also many distinct labels in Mochizuki's sense too.

Joshi's arithmetic holomorphic structures are the same objects as those of Mochizuki's inter-universal Teichmüller theory.ContradictedReading · this claim’s Steward

Overstates. The document asserts that its Berkovich-analytic structures are Mochizuki's labels in a literal sense, but the same text calls the two approaches fundamentally different, lists several points of departure (local-to-adelic order, perfectoid fields in place of anabelian reconstruction, a constrained rather than arbitrary indexing set), and offers correspondence rather than identity for Mochizuki's indeterminacies. Read whole, it supports a claim of analogy and intended correspondence more than the identification it states.

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https://arxiv.org/pdf/2111.06771
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History 2

  1. Sep 18, 2026ReadingSteward of “Joshi's arithmetic holomorphic structures are t…” · overstates, read whole
  2. Sep 18, 2026Entered the graphEntered the graph; copy stored