List of publications


Most of my preprints are (will be) available from ArXiv.org. Preprints which can be downloaded from this page represent preliminary versions of the manuscript and not the final version published. You are advised to prefer the published articles as they contain most recent information.

L. Grubišić S. Miodragović and N. Truhar
Double angle theorems for definite matrix pairs
(Electronic Transactions on Numerical Analysis, Volume 45, 33-57, 2016)
A preprint is available

S. Giani, L. Grubišić and J.S Ovall
Benchmark results for testing adaptive finite element eigenvalue procedures II
(Applied Numerical Mathematics, Volume 102, 1-16, 2016)
A preprint is available

S. Giani, L. Grubišić, A. Międlar and J.S Ovall
Robust error estimates for approximations of non-self-adjoint eigenvalue problems.
(Numerische Mathematik, Volume 133, Issue 3, pp 471-495, 2016)

L. Grubišić and A. Grbić
Discrete perturbation estimates for eigenpairs of Fredholm operator-valued functions
(Applied Mathematics and Computation, Volume 267, 632-647, 2015.)

L. Grubišić and D. Kressner
On the eigenvalue decay of solutions to operator Lyapunov equations.
(Systems and Control Letters, Volume 73, 42-47, 2014.)
A preprint is available.

L. Grubišić, S. Miodragović and N. Truhar
The rotation of eigenspaces of perturbed matrix pairs II
(Linear and Multilinear Algebra, Volume 62, Issue 8, 1010-1031, 2014.)

S. Giani, L. Grubišić and J.S Ovall
Error control for hp-adaptive approximations of semi-definite eigenvalue problems
(Computing. 95 (S1), 235-257, 2013.)

R. E. Bank, L. Grubišić and J. S. Ovall
A framework for robust eigenvalue and eigenvector error estimation and Ritz value convergence enhancement
(Applied Numerical Mathematics, Volume 66, 1-29, 2013.)
A preprint is available from MPI MSI Leipzig.

L. Grubišić, Vadim Kostrykin, Konstantin A. Makarov and Kresimir Veselić
The TAN 2THETA Theorem for Indefinite Quadratic Forms
(Journal of Spectral Theory, Volume 3, Issue 1, 83-100, 2013.)
A preprint is available from ArXiv.org.

L. Grubišić, Vadim Kostrykin, Konstantin A. Makarov and Kresimir Veselić
Representation Theorems for Indefinite Quadratic Forms Revisited
(Mathematika, Volume 59, Issue 01, pp. 169-189, 2013.)
A preprint is available from ArXiv.org.

L. Grubišić, Ninoslav Truhar and Kresimir Veselić
The Rotation of Eigenspaces of Perturbed Matrix Pairs
(Linear Algebra and Its Applications, Volume 436, 4161-4178, 2012.)
A preprint is available from ArXiv.org.

L. Grubišić and I. Nakić
Error representation formula for eigenvalue approximations for positive definite operators
(Operators and Matrices, Volume 6, Number 4, 2012, 793--808)
NOTE: This manuscript supersedes a previous one titled On Temple--Kato like inequalities and applications

S. Giani, L. Grubišić and J.S. Ovall
Benchmark results for testing adaptive finite element eigenvalue procedures
(Applied Numerical Mathematics, Volume 62, Issue 2, 2012, 121-140.)
A preprint is available from U. of Nottingham's eprint server.

L. Grubišić, Vadim Kostrykin, Konstantin A. Makarov and Kresimir Veselić
2 x 2 matrices, quadratic forms, and representation theorems
(Oberwolfach Reports, Volume 6, Issue 4, 2009, pp. 2988 - 2989. published by European Mathematical Society)
A preprint is avaliable from the MFO webpage.

L. Grubišić
Relative convergence estimates for the spectral asymptotic in the Large Coupling Limit
(Integral Equations and Operator Theory, Volume 65, Number 1, 2009, Pages 51-81.)
A preprint is available from ArXiv.org.

R. E. Bank, L. Grubišić and J. S. Ovall
A robust hierarchical eigenvalue/eigenvector enhancement
(Oberwolfach Reports, Volume 6, Issue 3, 2009, pp. 2053-2055, published by European Mathematical Society)
A preprint is available from the web-page of the MFO Institute.

L. Grubišić and J. S. Ovall
On estimators for eigenvalue/eigenvector approximations
(Mathematics of Computation, Volume 78, Number 266, 2009, Pages 739-770. )
A preprint is available from MPI MSI Leipzig.

L. Grubišić
On relative perturbation theory for eigenvalues and eigenvectors of block operator matrices
(Proceedings of Applied Mathematics and Mechanics, Volume 7, Issue 1, February 2008)

L. Grubišić and K. Veselić
On weakly formulated Sylvester equations and applications
(Integral Equations and Operator Theory, Volume 58, Issue 2, June 2007, Pages 175-204)
A preprint is available from ArXiv.org.

L. Grubišić
On eigenvalue and eigenvector estimates for nonnegative definite operators
(SIAM Journal on Matrix Analysis and Applications, Volume 28, Issue 4, December 2006, Pages 1097-1125)
A preprint is available from ArXiv.org.

L. Grubišić
A posteriori estimates for eigenvalue/vector approximations
(Proceedings of Applied Mathematics and Mechanics, Volume 6, Issue 1, 4 Dec 2006, Pages 59 - 62)

L. Grubišić and K. Veselić
On Ritz Approximations for Positive Definite Operators I (Theory)
(Linear Algebra and its Applications, Volume 417, Issues 2-3 , 1 September 2006, Pages 397-422)
One of earlier versions is available as a preprint.

L. Grubišić, N. Limić and V. Valković
On Simulations of Random Fields on Bounded Domains
(Proceedings of the Conference on Applied mathematics and computation (Dubrovnik, 1999), 233--243, Univ. Zagreb Dep. Math., Zagreb, 2001.)


Thesis

Ritz value estimates and applications in Mathematical Physics published by dissertation.de - Verlag im Internet GmbH; ISBN: 3-89825-998-6.


Unpublished manuscripts

L. Grubišić
Assessing accuracy of finite element eigenvalue/eigenvector approximations
(unpublished manuscript, 2005)



Last modified: November 17, 2010