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• On Optimal Control Problem related to the Infinity Laplacian, Analysis Seminar, Temple University, Philadelphia, April 5, 2021, (Virtual Presentation).

• Numerical Method for the Near Field Refractor Problem, AMS-NAM Joint Special Session on Celebrating the Mathematical Legacy of Dr. James A. Donaldson,  Joint AMS-MAA meetings, January 2021, (Virtual Presentation).

• Optical Properties of Quadrics, Egg Shaped solids and Mathematical Modeling in Geometric Optics, SPIRAL-- REU program, American University, Washington, DC. July 30, 2020. (Virtual Presentation).

• Numerical Approach to the Near Field Refractor Problem, HBCU-UP/CREST PI/PD Meeting, February 5 - 6, 2020, Washington, D.C.

• A constructive approach to the far field Refractor Problem in Anisotropic Media, AMS Fall Western Sectional Meeting (Special Session on Inverse Problems), University of California, Riverside, CA,  November 9 - 10, 2019.

• Mathematical Problems in Geometric Optics, Colloquium, Department of Mathematics, Howard University, Washington, DC. September 13, 2019.

• Optical Properties of Conics and Mathematical Modeling in Geometric Optics, SPIRAL-- REU program, American University, Washington, DC. July 2019.

• On Geometric Optics Problems Involving Refraction, Howard University research week, April 2019, Howard University, Washington, DC.

• On Mathematical Problems in Geometric Optics, NAM Claytor-Woodard Lecture, Joint AMS-MAA meetings, January 2019, Baltimore, MD.

• A constructive approach to the far field Refractor Problem, AMS Spring Eastern Sectional Meeting (Special Session on Harmonic Analysis and Partial Differential Equations), Northeastern University, April 21 - 22, 2018, Boston, MA.

• On the Numerical Solution to an Inverse Problem of Refraction, University of Kentucky, ORAM 8, March 2018.

• On the Numerical Solution to the Far Field Refractor Problem, SIAM PDE 2017, December 2017.

• Existence and Regularity of Solutions to Equations with Convex Gradient Constraint, University of Kentucky, ORAM 6, March 2016.

• On Optimal Control Problem Related to the Infinity Laplacian, Howard University seminar, April 2016.

• On the Regularity of Viscosity Solutions to Partial Differential Equations with Convex Gradient Constraints, University of Tennessee, Knoxville, PDE Seminar, April 2015.

• Discussion on the Refractor Problem, Howard University, Applied Mathematics working group, (3 Lectures), February - March 2015.

• On the Regularity of Solutions to Gradient Constraint Problems, Howard University, Differential Equations and Dynamical Systems Seminar, Nov 2014.

• Regularity Properties of Solutions of a Higher Order Free Boundary Problem, SIAM conference on PDEs 2013, Lake Buena Vista, FL, Dec 2013.

• Regularity Properties of Solutions of a Higher Order Free Boundary Problem, Eastern Sectional Meeting of the AMS (Special Session on Recent Advances in Harmonic Analysis and Partial Differential Equations) Temple University, Philadelphia, PA, October 2013.

• Regularity Properties of Solutions of a Higher Order Free Boundary Problem, Joint Mathematics Meetings, San Diego, CA, January 2013.

• Regularity Properties of Solutions of a Higher Order Free Boundary Problem, Howard University, Mathematics Department Colloquium, March 2013.

• Regularity Properties of Solutions of a Higher Order Free Boundary Problem, Joint Mathematics Meetings, San Digeo, CA, January 2013.

• Regularity Properties of Solutions of a Biharmonic Free Boundary Problem, 2012 Eastern Sectional Meeting of the AMS, George Washington University, Washington , DC, March 2012.

• The Refractor Problem with Loss of Energy, University of California, Berkeley, Student PDE seminar,  April 2011, (organized by Lawrence Craig Evans.)

•  Almansi Expansion Theorem and its application to Non negative Polyharmonic Polynomials, MSRI, Brown bag seminar, (organized by Juan Luis Vazquez.)

• The Refractor Problem with Loss of Energy, Mathematical Sciences Research Institute (MSRI), Postdocs seminar,  April 2011.

• The Refractor Problem with Loss of Energy, Analysis Seminar,  Temple University, April 2010.

• The Refractor Problem with Loss of Energy and Monge-Amp\`{e}re Equation Type Equations, Howard University, Washington DC,  February 2010.

• The Refractor Problem with Loss of Energy, Joint Mathematics Meetings, San Francisco, CA, January 2010.

• The Refractor Problem, Eastern Pennsylvania and Delaware Section of the MAA Fall Meeting, Philadelphia, PA, November 2009.

• Poster presentation on Eichler Cohomology Theorem, First annual Student Research Poster Presentation, Temple University, April 2009.

•  Eichler Cohomology Theorem for Modular Forms with Small Weights, Joint Mathematics Meetings, Washington DC, January 2009.

• Eichler Cohomology Theorem for Automorphic Forms of Weights between 0 and 2. Number Theory Seminar, Temple University, April 2008.