- IWASEP 11, June 12-25, 2020, Dubrovnik, Croatia.
- Householder Symposium XXI, June 14-19, 2020, Selva di Fasano, Italy.

- EPFL Lausanne, September 16-20, 2019, Lausanne, Switzerland (research visit to Daniel Kressner).
- Koç University, September 16-22, 2018, Istanbul, Turkey (research visit to Emre Mengi).
- NASCA'18, July 2-6 2018, Kalamata, Greece
- Structured Matrices in Numerical Linear Algebra: Analysis, Algorithms and Applications, September 4-8 2017, Cortona, Italy
- Householder Symposium XX, June 18-23, 2017, Blacksburg, Virginia.
- 8
^{th}Linear Algebra Workshop, June 12-16, 2017, Ljubljana, Slovenia - Workshop on Structured Matrix Computations with Applications, March 14-18, 2016, Sanya, China:
*Roots of bivariate polynomial systems via determinantal representations* - Structured Matrices and Tensors: Analysis, Algorithms and Application, December 8-11, 2014, Taipei, Taiwan:
*Spectral collocation for multiparameter eigenvalue problems arising from separable boundary value problems* - Householder Symposium XIX, June 8-13, 2014, Spa, Belgium:
*Computing all values**l**such that A+**l**B has a double eigenvalue* - Manchester Workshop on Nonlinear Eigenproblems, April 23-25, 2014, Manchester, UK:
*Numerical Methods for Nonlinear Two-Parameter Eigenvalue Problems* - Centre for Analysis, Scientific computing and Applications, TU Eindhoven, March 14-June 16, 2014, Eindhoven, Netherlands (research visit to Michiel Hochstenbach supported by NWO grant).
- Structured Numerical Linear and Multilinear Algebra Problems: Analysis, Algorithms, and Applications, September 10-14, 2012, Leuven, Belgium:
*An Arnoldi type method for the generalized eigenvalue problem with 2 x 2 operator determinants* - 2012 SIAM Conference on Applied Linear Algebra, June 18-22, 2012, Valencia, Spain:
*Computing double eigenvalues via the two-parameter eigenvalue problem* - International Conference on Scientific Computing, October 10-14, 2011, S. Margherita di Pula, Sardinia, Italy:
*Numerical methods for nonlinear two-parameter eigenvalue problems* - 17th ILAS Conference, August 22-28, 2011, Braunschweig, Germany:
*Numerical methods for nonlinear two-parameter eigenvalue problems* - 3rd International Conference on Matrix Methods in Mathematics and Applications, June 22-25, 2011, Moscow, Russia:
*Singular two-parameter eigenvalue problems* - 16th ILAS Conference, June 21-25, 2010, Pisa, Italy:
*Singular two-parameter eigenvalue problems and bivariate polynomial systems* - Mathematical colloquium, April 22, 2010, Osijek, Croatia:
*Singular two-parameter eigenvalue problems* - Structured Linear Algebra Problems: Analysis, Algorithms, and Applications, September 15-19, 2008, Cortona, Italy:
*On singular multiparameter eigenvalue problems* - 15th ILAS Conference, June 16-20, 2008, Cancun, Mexico:
*Numerical methods for two-parameter eigenvalue problems* - Householder Symposium XVII, June 1-6, 2008, Zeuthen, Germany:
*Jacobi–Davidson method for two-parameter eigenvalue problems* - Computational Methods with Applications, August 19-25, 2007, Harrachov, Czech Republic:
*Harmonic Rayleigh-Ritz for the multiparameter eigenvalue problem* - Workshop on Structured Perturbations and Distance Problems in Matrix Computations, March 26-30, 2007, Będlewo, Poland:
*Numerical methods for multiparameter eigenvalue problems* - The 2nd international conference on structured matrices, June 8-11, 2006, Hong Kong, China:
*Numerical methods for multiparameter eigenvalue problems* - GAMM annual meeting 2006, March 27-31, 2006, Berlin, Germany:
*Numerical methods for banded polynomial eigenvalue problems* - Mathematical colloquium, January 26, 2006, Osijek, Croatia.
- International seminar on matrix methods and operator equations, June 20-25, Moscow, Russia:
*A Cholesky LR algorithm for the positive definite symmetric diagonal-plus-semiseparable eigenproblem* - TU Berlin, February 27-March 5, 2005, Berlin, Germany (on invitation of Volker Mehrmann).
- Structured numerical linear algebra problems: Algorithms and Applications, September 19-24, 2004, Cortona, Italy:
*Numerical methods for tridiagonal quadratic eigenvalue problems* - IWASEP V, June 28-July 1, 2004, Hagen, Germany:
*Numerical methods for the tridiagonal quadratic hyperbolic eigenvalue problem* - BIRS Workshop: Theory and Numerics of Matrix Eigenvalue Problems, November 22-27, 2003, Banff, Canada:
*Numerical methods for algebraic two-parameter eigenvalue problems* - SIAM Conference on Applied Linear Algebra, July 15-19, 2003, Williamsburg, Virginia:
*Numerical methods for a tridiagonal hyperbolic quadratic eigenvalue problem* - IWASEP IV, best poster award, June 24-27, 2002, Split, Croatia:
*A Jacobi-Davidson type method for a right definite two-parameter eigenvalue problem*(joint work with Michiel E. Hochstenbach) - Householder Symposium XV, June 17-21, 2002, Peebles, Scotland:
*A Jacobi-Davidson type method for a right definite two-parameter eigenvalue problem*(joint work with Michiel E. Hochstenbach) - SOR' 01 (6
^{th}International Symposium on Operations Research in Slovenia '01), September 26-28, 2001, Preddvor, Slovenia:*Optimal arrangements of n points on a sphere and in a circle*(joint work with Vladimir Batagelj) - 7th SIAM Conference on Applied Linear Algebra, October 23-26, 2000, Raleigh, North Carolina:
*A continuation method for a weakly elliptic two-parameter eigenvalue problem*.

- Householder prize honorable mention on Householder Symposium XV (June 2001)