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researcher

T. Johnsen

4 papers hereh-index 13498 citations68 works total

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

author position
  • first author2
  • middle author2

Across the 4 of 4 papers where every author was matched, so the position is known.

fields
  • math.AG3
  • alg-geom1

identity via Semantic Scholar / OpenAlex

activity
19972005
most citedSchubert Unions in Grassmann Varieties

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

collaborators
Showing alg-geomShow all

1 paper · 1 filter

alg-geom1997

Isolated rational curves on K3-fibered Calabi-Yau threefolds

Torsten Ekedahl, Trygve Johnsen, Dag Einar Sommervoll

We study each of the 16 types of complete intersection Calabi-Yau threefolds in projective n-space times the projective line, for various n, and prove existence of isolated rationa…

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