Seminars and Talks presented:
On certain elliptic modular surfaces, Number Theory Seminar, Queen’s University, October 1999.
“Modularity” of certain two dimensional varieties, the Millennia conference on Number Theory, University of Illinois at Urbana-Champaign, May 2000.
A generalized congruent number problem, the Southwest Number Theory conference, University of California San Diego, December 2000.
Heegner points construction, Group Presentation, Arizona Winter School 2001, University of Arizona, March 2001.
Monodromy Groups and Isogenies, Post Doctor Seminar, Institute for Advanced Study, September 2002.
On a Shioda-Inose structure of a family of K3 surfaces, AMS meeting, special section on arithmetic geometry, University of Wisconsin, Madison, October 2002.
On Shioda-Inose structures of one parameter families of K3 surfaces, Number Theory Seminar, Columbia University, November 2002.
Isogenous elliptic curves, Algebra and Number Theory Seminar, Pennsylvania State University, December 2002.
On Shioda-Inose structures of one parameter families of K3 surfaces, Algebra and Number Theory Seminar, University of California, Santa Cruz, January 2003.
On Shioda-Inose structures of one parameter families of K3 surfaces, Number Theory Seminar, Princeton University, February, 2003.
Modular forms of non-congruence subgroups, Women in Mathematics seminar, Pennsylvania State University, April 2003.
Modular forms of congruence and non-congruence subgroups, Colloquium talk, Iowa State University, August 2003.
On cuspforms of non-congruence subgroups, Workshop on Arithmetic and Geometry of Algebraic Varieties, Fields Institute, November 2003.
Elliptic surface, A _{ − } D _{ − } E Dynkin diagrams and their applications, algebra and combinatorics seminar, Iowa State University, December 2003.
On Atkin-Swinnerton-Dyer congruence relations, number theory seminar, John Hopkins University, February 2004.
Representing natural numbers as sums of integer squares, algebra and combinatorics seminar, Iowa State University, March 2004.
On cuspforms of non-congruence subgroups, number theory seminar, University of Wisconsin-Madison, April 15, 2004.
On Atkin-Swinnerton-Dyer congruence relations, algebra and number theory seminar, Louisiana State University, April 19, 2004.
On cuspforms of non-congruence subgroups, Illinois number theory conference, University of Illinois at Urbana-Champaign, May 21 2004
On Atkin-Swinnerton-Dyer congruence relations, CanadianNumber Theory Conference VIII, University of Toronto, Canada, June 20, 2004.
From congruence to noncongruence modular forms, algebra and combinatorics seminar, Iowa State University, November 29, 2004
Introduction to elliptic curves, Graduate colloquium, Iowa State University, February, 10, 2005
The Picard-Fuchs equations of certain one-parameter families of K3 surfaces, Workshop on Arithmetic and Geometry of Algebraic Varieties, Fields Institute, March 6th, 2005.
Modular forms for noncongruence subgroup of $SL_2(\mathbb Z)$, colloquium talk, University of Iowa, March 30, 2005
A short proof of Milne's formulae for sums of integer squares, ArithmeTexas, University of Texas at A\&M, April 3rd 2005.
Eisenstein series and representing natural numbers as sum of integer squares number theory seminar, University of Illinois at Urbana-Champaign, April 2005
Multi-restricted Stirling numbers Combinatorics/Algebra/Number Theory seminar, Iowa State University, Oct. 24, 2005
Modern approaches to counting problems, Combinatorics/Algebra/Number Theory seminar, Iowa State University, Oct. 30, 2005
Atkin and Swinnerton-Dyer congruence and the modularity for certain noncongruence cuspforms, AMS general meeting, San Antonio, January 15, 2006
$q$-hypergeometric functions and $q$-identities, Algebra/number theory seminar, Iowa State University, February 6, 2006
The modularity of certain elliptic modular surfaces, Weekend workshop on Arithmetic and Geometry of Algebraic Varieties with Special Emphasis on Calabi-Yau Varieties and Mirror Symmetry, Fields Institute, Toronto, Canada, March 2006
Modular Forms for Noncongruence Subgroups, Banff BIRS conference on Modular Forms and String Duality. Banff, Alberta, Canada, June 5, 2006
Finite index subgroups of PSL(2,Z) and their modular functions, Iowa State University Combinatorics/Algebra/Number Theory seminar. Nov. 2006
On the Coefficients of Noncongruence Modular Forms, Canadian Mathematical Society Winter 2006 Meeting, invited talk, Dec. 11, 2006
Continued fractions and their applications, ISU Math Club, January 2007
Finite index subgroups of the modular group and their modular forms, algebra and discrete math seminar, Clemson University, April 13, 2007.