Journal publications

Z. Bujanović and D. Kressner and C. Schröder:
Iterative refinement of Schur decompositions.
Numerical Algorithms, 2022
[preprint, full paper]

Z. Bujanović and D. Kressner:
Norm and trace estimation with random rankone vectors.
SIAM Journal on Matrix Analysis and Applications, Volume 42, Number 1, pp 202223, 2021
[preprint]

P. Benner and Z. Bujanović and P. Kürschner and J. Saak:
A numerical comparison of different solvers for largescale, continuoustime algebraic Riccati equations and LQR Problems.
SIAM Journal on Scientific Computing, Volume 42, Number 2, pp A957–A996, 2020
[preprint]

Z. Bujanović and L. Karlsson and D. Kressner:
A Householderbased algorithm for Hessenbergtriangular reduction.
SIAM Journal on Matrix Analysis and Applications, Volume 39, Number 3, pp 12701294, 2018
[preprint]

N. Bosner and Z. Bujanović and Z. Drmač:
Parallel solver for shifted systems in a hybrid CPUGPU framework.
SIAM Journal on Scientific Computing, Volume 40, Number 4, pp C605C633, 2018
[preprint]

P. Benner and Z. Bujanović and P. Kürschner and J. Saak:
RADI: A lowrank ADItype algorithm for large scale algebraic Riccati equations.
Numerische Mathematik, Volume 138, Issue 2, pp 301330, February 2018

P. Benner and Z. Bujanović:
On the solution of largescale algebraic Riccati equations by using lowdimensional invariant subspaces.
Linear Algebra and Its Applications, Volume 488, pp 430459, January 2016
[preprint]

Z. Bujanović and D. Kressner:
A block algorithm for computing antitriangular factorizations of symmetric matrices.
Numerical Algorithms, Volume 71, pp 4157, January 2016
[preprint]

Z. Bujanović and Z. Drmač:
A new framework for implicit restarting of the KrylovSchur algorithm.
Numerical Linear Algebra with Applications, 2014

Z. Bujanović:
On the permissible arrangements of Ritz values for normal matrices in the complex plane.
Linear Algebra and Its Applications, Volume 438, Issue 12, pp 46064624, June 2013

N. Bosner and Z. Bujanović and Z. Drmač:
Efficient generalized Hessenberg form and applications.
ACM TOMS, Volume 39, Issue 3, Article No. 19, April 2013

Z. Bujanović and Z. Drmač:
A contribution to the theory and practice of the block Kogbetliantz method for computing the SVD.
BIT Numerical Mathematics, Volume 52, Issue 4, pp 827849, December 2012

Z. Bujanović and Z. Drmač:
On the failure of rank revealing QR factorization software – A case study.
ACM TOMS, Volume 35, Issue 2, pp 12:112:28, July 2008
Conferences and Schools

ENUMATH2023 (Lisabon, Portugal, 2023):
Iterative refinement of Schur decompositions (coauthors: D. Kressner, C. Schröder)

SIAM LA21 (virtual, 2021),
XXI Householder Symposium on Numerical Linear Algebra (Selva di Fasano, Italy, 2022),
SIAM CSE23 (Amsterdam, Netherlands, 2023):
Norm and trace estimation with random rankone vectors (coauthor: D. Kressner)

ICIAM2019 (Valencia, Spain, 2019):
Parallel solver for shifted systems in a hybrid CPUGPU framework (coauthors: N. Bosner, Z. Drmač)

NASCA 2018 (Kalamata, Greece, 2018),
ApplMath18 (Šibenik, Croatia, 2018):
A Householderbased algorithm for Hessenbergtriangular reduction (coauthors: L. Karlsson, D. Kressner)

SciCADE 2017 (Bath, UK, 2017):
A lowrank ADItype algorithm for large scale algebraic Riccati equations (coauthors: P. Benner, P. Kürschner, J. Saak)

6th Croatian Mathematical Congress (Zagreb, Croatia, 2016):
A hybrid algorithm for solving shifted linear systems (coauthors: N. Bosner, Z. Drmač)

Workshop on Matrix Equations and Tensor Techniques (Bologna, Italy, 2015),
GAMM ANLA Workshop (Magdeburg, Germany, 2015):
A LowRank Quadratic ADI Algorithm for Algebraic Riccati Equations (coauthors: P. Benner, P. Kürschner, J. Saak)

GAMM Annual Meeting (Erlangen, Germany, 2014),
IWASEP 10 (Dubrovnik, Croatia, 2014):
On the invariant subspace approach to solving the Riccati equation (coauthor: P. Benner)

IWASEP 9 (Napa Valley, USA, 2012),
ApplMath11 (Trogir, Croatia, 2011):
On the Ritz Values of Normal Matrices

PMAA'10 (Basel, Switzerland, 2010):
A hybrid mHessenberg Reduction Algorithm (coauthor: Z. Drmač)

Gene Golub SIAM Summer School 2010 (Selva di Fasano, Italy, 2010)
 International Summer School on Numerical Linear Algebra

IWASEP 7 (Dubrovnik, Croatia, 2008):
On the Convergence of Block Kogbetliantz Methods for Calculating the SVD (coauthor: Z. Drmač)
 SIAG/LASIMUMAT (Castro Urdiales, Spain, 2008)
 International Summer School on Numerical Linear Algebra

ApplMath07 (Brijuni, Croatia, 2007):
On the Failure of Rank Revealing QR Factorization Software" (coauthor: Z. Drmač)

IWASEP 5 (Hagen, Germany, 2004):
Implementation of the New Jacobi SVD Algorithm for Complex Matrices (poster section)