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researcher

Ippei Nagamachi

7 papers hereh-index 214 citations9 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • sole author5
  • first author2

Across the 7 of 7 papers where every author was matched, so the position is known.

fields
  • math.NT6
  • math.AG1

identity via Semantic Scholar / OpenAlex

activity
20162022
most citedOn homotopy exact sequences for normal schemes

1 citations · 2 across the 7 of their papers we have counts for

collaborators
Showing 2018Show all

2 papers · 1 filter

math.NT2018★ 1 cited

On homotopy exact sequences for normal schemes

Ippei Nagamachi

Consider a morphism between connected locally Noetherian normal schemes. In this paper, we discuss when the sequence of the etale fundamental groups associated to the morphism is e…

math.NT2018

Criteria for good reduction of proper polycurves

Ippei Nagamachi

We give good reduction criteria for hyperbolic polycurves, i.e., successive extensions of families of curves, under mild assumption. These criteria are higher dimensional version o…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.