1. Edith Adan-Bante and Helena Verrill, Symmetric groups and conjugacy classes, J. Group Theory 11 (2008), no. 3, 371–379.[MR]
  2. Liqun Fang, J. William Hoffman, Benjamin Linowitz, Andrew Rupinski, and Helena Verrill, Modular forms on noncongruence subgroups and Atkin-Swinnerton-Dyer relations, Experiment. Math. 19 (2010), no. 1, 1–27.[arXiv]
  3. Jerome W. Hoffman, Ling Long, and Helena Verrill, On l-adic representations for a space of noncongruence cuspforms, preprint (2010).[arXiv]
  4. Klaus Hulek and Helena Verrill, On modularity of rigid and nonrigid Calabi-Yau varieties associated to the root lattice A4, Nagoya Math. J. 179 (2005), 103–146.[MR]
  5. Klaus Hulek and Helena A. Verrill, On the motive of Kummer varieties associated to Γ1(7)— Supplement to the paper: "The modularity of certain non-rigid Calabi-Yau threefolds" by R. Livné and N. Yui, J. Math. Kyoto Univ. 45 (2005), no. 4, 667–681.[MR/link]
  6. Ian Kiming, Matthias Schuett, and Helena Verrill, Lifts of projective congruence groups, J. London Math. Soc, to appear (2010), 25 pages.[arXiv]
  7. David R. Kohel and Helena A. Verrill, Fundamental domains for Shimura curves, J. Théor. Nombres Bordeaux 15 (2003), no. 1, 205–222.[MR]
  8. William A. Stein and Helena A. Verrill, Cuspidal modular symbols are transportable, LMS J. Comput. Math. 4 (2001), 170–181 (electronic).[MR]
  9. H. A. Verrill, Sums of squares of binomial coefficients, with applications to Picard-Fuchs equations, preprint (2004), 20 pages.[arXiv]
  10. Helena A. Verrill, Transportable modular symbols and the intersection pairing, Algorithmic Number Theory (Sydney, 2002), Lecture Notes in Comput. Sci., vol. 2369, Springer, Berlin, 2002, pp. 219–233.[MR]
  11. Helena Verrill and David Joyner, Computing with toric varieties, J. Symbolic Comput. 42 (2007), no. 5, 511–532.[MR]