広島大学

Basic Information

Academic Degrees

• Hiroshima University
• Kyoto University

Educational Activity

Course in Charge

1. 2021, Liberal Arts Education Program1, 3Term, Seminar in Linear AlgebraII
2. 2021, Undergraduate Education, 1Term, Exercises in Algebra I
3. 2021, Graduate Education (Master's Program) , First Semester, Seminar of Algebra I
4. 2021, Graduate Education (Master's Program) , Second Semester, Seminar of Algebra I
5. 2021, Graduate Education (Master's Program) , Academic Year, Algebra Seminar I
6. 2021, Graduate Education (Master's Program) , Academic Year, Algebra Seminar I

Research Activities

Academic Papers

1. A pro-l version of the congruence subgroup problem for mapping class groups of genus one, J. Algebra, 520, 1-31, 2019
2. The pro-l outer Galois actions associated to modular curves of prime power level, J. Théor. Nombres Bordx, 30(3), 781-799, 2018
3. Difference between l-adic Galois representations and pro-l outer Galois representations associated to hyperbolic curves, MANUSCRIPTA MATHEMATICA, 153(1-2), 129-145, 201712
   Link to Paper Search Results by DOI
4. Galois action on mapping class groups, 45(2), 207-230, 2015

Invited Lecture, Oral Presentation, Poster Presentation

1. On an exact sequence relating the combinatorial anabelian geometry of hyperbolic curves, Yu Iijima, Branched Coverings, Degenerations, and Related Topics 2019, 2019/03/05, With Invitation, English, Hiroshima
2. Galois action on the image of the pro-l universal monodromy representation of the moduli stack of hyperbolic curves, Iijima, Yu, Low dimensional topology and number theory VIII, 2016/03/25, With Invitation, English, Fukuoka
3. Difference between l-adic Galois representations and pro-l outer Galois representations associated to hyperbolic curves, Iijima, Yu, Industrious Number Theory 2015, 2015/11/27, With Invitation, English, Seoul
4. A pro-l version of the congruence subgroup problem for mapping class groups of genus one, Iijima, Yu, Workshop on Multiple Zeta Values, Modular Forms and Elliptic Motives II, 2014/12/04, With Invitation, English, Madrid
5. Galois Action on Mapping Class Groups, Yu iijima, Mini-workshop on Number Theory/Arithmetic Geometry, 2013/01/31, With Invitation, English, Kyoto