Junecue Suh

Massachusetts Institute of Technology, Cambridge, MA, United States

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Publications (2)2.69 Total impact

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    Junecue Suh
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    ABSTRACT: We construct general type surfaces in mixed characteristic whose geometric genera can be made to jump by an arbitrarily prescribed positive amount under specialization. We then show that this phenomenon of jumping geometric genus presents itself in some compact Shimura surfaces. Finally, we find a set of conditions, met by the latter Shimura surfaces, that forces the higher plurigenera to remain constant in reduction modulo p.
    Compositio Mathematica 08/2008; 144(05):1214 - 1226. · 1.04 Impact Factor
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    James S. Milne, Junecue Suh
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    ABSTRACT: We show that conjugation by an automorphism of the complex numbers (as an abstract field) may change the topological fundamental group of a locally symmetric variety over C. As a consequence, we obtain a large class of algebraic varieties defined over number fields with the property that different embeddings of the number field into C give complex varieties with nonisomorphic fundamental groups.
    American Journal of Mathematics 05/2008; 132(3). · 1.65 Impact Factor

Publication Stats

12 Citations
2.69 Total Impact Points


  • 2008
    • Massachusetts Institute of Technology
      • Department of Mathematics
      Cambridge, MA, United States