- Multiple eigenvalues with prespecified multiplicities and pseudospectra SIAM Conference on Applied Linear Algebra, Monterey, CA, USA, October 2009
- Generalized eigenvalue problem for nonsquare pencils 2nd IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham, UK, Sept 2010
- Nearest pencils with specified eigenvalues Householder Symposium, Lake Tahoe, CA, USA, June 2011
- Pseudospectra, nearest matrices with multiple eigenvalues and optimization of symmetric eigenvalues ICIAM, Vancouver, Canada, July 2011
- Numerical optimization of eigenvalues of Hermitian matrix functions MOPNET 6, University of Bath, UK, April 2012
- Optimization of eigenvalues of Hermitian matrix functions and applications IWASEP 9, Napa, California, USA, June 2012
- Matrix Functions with Specified Eigenvalues NLAA 2013, Guwahati, Assam, India, January 2013