Your browser do not support script. Here are news slide. Research Staff

Yu, Chia-Fu

photo 
Research Fellow 
Institute of Mathematics,
Academia Sinica 
128 Academia Rd. Sec. 2, Nankang 
Taipei, Taiwan, 115 
E-mail:chiafu@math.sinica.edu.tw 
Phone:+886 2 2785-1211 ext. 415 
Fax: +886 2 2782-7432
 
Publications
  1. C.-F. Yu, On the supersingular locus of Hilbert-Blumenthal 4-folds, Thesis, University of Pennsylvania (1999), 76 pp
  2. C.-F. Yu, Lifting abelian varieties with additional structure. Math. Z. 242 (2002) 427--441.
  3. C.-F. Yu, On the supersingular locus in Hilbert-Blumenthal 4-folds. J. Algebraic Geom. 12 (2003), 653--698.
  4. C.-F. Yu, On reduction of Hilbert-Blumenthal varieties. Annales de l'Institut Fourier (Grenoble) 53 (2003), 2105--2154.
  5. C.-F. Yu, The isomorphism classes of abelian varieties of CM type. J. Pure Appl. Algebra 187 (2004) 305--319.
  6. C.-F. Yu and J. Yu, Mass formula for supersingular Drinfeld modules. C. R. Acad. Sci. Paris S\'er. I Math. 338 (2004) 905--908.
  7. C.-F. Yu, Irreducibility of Siegel moduli spaces with parahoric level structure. Int. Math. Res. Not. 2004, No. 48, 2593--2597.
  8. C.-F. Yu, On the mass formula of supersingular abelian varieties with real multiplications. J. Australian Math. Soc. 78 (2005), 373--392.
  9. C.-F. Yu, On the slope stratification of certain Shimura varieties. Math. Z. 251 (2005), 859 --873.
  10. C.-F. Yu, The supersingular loci and mass formulas on Siegel modular varieties. Doc. Math. 11 (2006), 449 -- 468
  11. C.-F. Yu, Construction of Galois covers of curves with groups of math symbols by mimetex-type., C. R. Acad. Sci. Paris S{\'e}r. I. Math, 345(2007), 77-80.
  12. C.-F. Yu, Leaves on Shimura varieties., Proceedings of the ICCM, II(2007), 630-661.
  13. C.-F. Yu, Irreducibility and math symbols by mimetex-adic monodromies on the Siegel moduli spaces., Adv. Math., 218(2008), 1253-1285.
  14. C.-F. Yu, Irreducibility of the Hilbert-Blumenthal moduli spaces with parahoric level structure. To appear in, J. Reine Angew. Math.(2008).
  15. C.-F. Yu, An exact geometric mass formula., Int. Math. Res. Not., 2008(2008), no. 113, 1-11.
  16. C.-F. Yu, Simple mass formulas on Shimura varieties of PEL-type. To appear in, Forum. Math.(2008).
  17. C.-F. Yu, Kottwitz-Rapoport strata of the Siegel moduli spaces. To appear in, Taiwanese J. Math.(2009).
  18. U. G\"ortz and C.-F. Yu, Supersingular Kottwitz-Rapoport and Deligne-Lusztig varieties. To appear in, J. Inst. Math Jussieu(2009).
Lecture Notes
  1. C.-F. Yu, Notes on Intersection cohomology, math symbols by mimetex-cohomology and math symbols by mimetex-functions of Hilbert-Blumenthal varieties (following the work of Brylinski and Labesse), NCTS Lecture Notes, 2002, 111 pp.
  2. C.-F. Yu, Zeta functions of modular curves. NCTS Lecture Notes, 2003. (In preparation)
  3. C.-L. Chai and C.-F. Yu, Notes on Cartier theory, Barsotti-Tate groups, Hecke orbits and canonical coordinates, lectures presented in the 2004 AS-NCTS joint seminar on Arithmetic and Algebraic Geometry, Number Theory, and Representation Theory, 12/30-31/2004, 1/6-7/2005.
Preprints
  1. C.-F. Yu, Discrete Hecke orbit problems for Hilbert-Blumenthal varieties., NCTS/TPE-Math Technical Report 2006-1, 20 pp, 1-20.
  2. C.-F. Yu, Supersingular locus of the Siegel three-fold with a parahoric level structure, NCTS/TPE-Math Technical Report 2006-18, 13 pp.
  3. C.-F. Yu, Basic points in the moduli spaces of PEL-type., MPIM-preprint 2005-113, 11 pp.
  4. U. G\"ortz and C.-F. Yu, The supersingular locus in Siegel modular varieties with Iwahori level structure. arXiv:math.AG/0807.1229, 27 pp.(2008)
  5. C.-F. Yu and J.-D. Yu, Mass formula for supersingular abelian surfaces. arXiv:0902.0244, 10 pages(2009)
  6. C.-F. Yu, On finiteness of endomorphism rings of abelian varieties. arXiv:0905:0019, 11 pages.(2009)