Liubomir Chiriac

Address: Department of Mathematics and Statistics
University of Massachusetts Amherst
710 N Pleasant St
Amherst, MA 01003
Email: chiriac at math dot umass dot edu



I am currently a postdoc at UMass Amherst. I received my PhD from Caltech working with Dinakar Ramakrishnan. Before that, I was an undergraduate at Princeton University.

My research interests are in number theory, with a focus on automorphic forms and Galois representations.


Papers and Preprints


  •   Comparing Hecke coefficients of automorphic representations
          (joint with Andrei Jorza)
          ( pdf )

  •   On the equality case of the Ramanujan Conjecture for Hilbert modular forms
          Submitted
          ( pdf )

  •   On the number of dominating Fourier coefficients of two newforms
          Proceedings of the American Mathematical Society 146 (2018)
          ( pdf  |  journal )

  •   Comparing Hecke eigenvalues of newforms
          Archiv der Mathematik 109 (2017), no. 3, 223-229.
          ( pdf  |  journal )

  •   Irreducible adjoint representations in prime power dimensions, with an application
          Journal of the Ramanujan Mathematical Society 30 (2015), no. 2, 205-218.
          ( pdf  |  journal )

  •   Central Critical values of twists of CM elliptic curves
          (joint with Farshid Hajir and Paul Gunnells)
          In preparation

Teaching


  • (2018 Spring, UMass) Math 235: Linear Algebra
  • (2017 Fall, UMass) Math 411: Abstract Algebra I (Group theory)
  • (2017 Fall, UMass) Math 491A: Putnam Seminar
  • (2017 Spring, UMass) Math 471: Number Theory
  • (2017 Spring, UMass) Math 131: Calculus II
  • (2016 Fall, UMass) Math 471: Number Theory
  • (2016 Fall, UMass) Math 491A: Putnam Seminar
  • (2016 Spring, UMass) Math 235: Linear Algebra
  • (2015 Fall, UMass) Math 131: Calculus I
  • (2015 Winter, Caltech) Math 1d: Sequences and Series
  • (2014 Fall, Caltech) Math 17: Putnam Seminar
  • (2013 Fall, Caltech) Math 17: Putnam Seminar