Constantin Popa

29 papers Journal 29
YearRankTypeTitle / Venue / Authors
2021 J jnl
Extensions of the Augmented Block Cimmino Method to the Solution of Full Rank Rectangular Systems.
SIAM J. Sci. Comput.
Andrei Dumitrasc, Philippe Leleux, Constantin Popa, Ulrich Rüde, Daniel Ruiz
2019 J jnl
Correction to: convergence rates for Kaczmarz-type algorithms.
Numer. Algorithms
Constantin Popa
2019 J jnl
On numerical solution of full rank linear systems.
CoRR
Andrei Dumitrasc, Philippe Leleux, Constantin Popa, Daniel Ruiz, Ulrich Rüde
2019 J jnl
The permutation entropy and its applications on fire tests data.
CoRR
Flavia-Corina Mitroi-Symeonidis, Ion Anghel, Octavian Lalu, Constantin Popa
2018 J jnl
Convergence rates for Kaczmarz-type algorithms.
Numer. Algorithms
Constantin Popa
2018 J jnl
Splitting methods for the numerical solution of multi-component mass transfer problems.
Math. Comput. Simul.
Gheorghe Juncu, Aurelian Nicola, Constantin Popa
2017 J jnl
Erratum to: Single projection Kaczmarz extended algorithms.
Numer. Algorithms
Stefania Petra, Constantin Popa
2016 J jnl
Single projection Kaczmarz extended algorithms.
Numer. Algorithms
Stefania Petra, Constantin Popa
2015 J jnl
Regularized solution of LCP problems with application to rigid body dynamics.
Numer. Algorithms
Constantin Popa, Tobias Preclik, Ulrich Rüde
2015 J jnl
Single Projection Kaczmarz Extended Algorithms.
CoRR
Stefania Petra, Constantin Popa
2014 J jnl
Family constraining of iterative algorithms.
Numer. Algorithms
Yair Censor, Ioana Pantelimon, Constantin Popa
2014 J jnl
Han-type algorithms for inconsistent systems of linear inequalities - A unified approach.
Appl. Math. Comput.
Constantin Popa, Cristina Serban
2014 J jnl
Numerical solutions to singular ϕ-Laplacianwith Dirichlet boundary conditions.
Numer. Algorithms
Petru Jebelean, Constantin Popa
2014 J jnl
Supplementary projections for the acceleration of Kaczmarz algorithm.
Appl. Math. Comput.
I. Pomparau, Constantin Popa
2012 J jnl
A general extending and constraining procedure for linear iterative methods.
Int. J. Comput. Math.
Aurelian Nicola, Stefania Petra, Constantin Popa, Christoph Schnörr
2010 J jnl
A hybrid Kaczmarz-Conjugate Gradient algorithm for image reconstruction.
Math. Comput. Simul.
Constantin Popa
2010 J jnl
Iterative solvers for Tikhonov regularization of dense inverse problems.
Int. J. Comput. Math.
Constantin Popa
2008 J jnl
Numerical solution of symmetric least-squares problems with an inversion-free Kovarik-type algorithm.
Int. J. Comput. Math.
Marcus Mohr, Constantin Popa
2008 J jnl
On numerical solution of arbitrary symmetric linear systems by approximate orthogonalization.
Math. Comput. Simul.
Constantin Popa
2005 J jnl
A new version of Kovarik's approximate orthogonalization algorithm without matrix inversion.
Int. J. Comput. Math.
Dana Petcu, Constantin Popa
2004 J jnl
An iterative algorithm for approximate orthogonalisation of symmetric matrices.
Int. J. Comput. Math.
Marcus Mohr, Constantin Popa, Ulrich Rüde
2004 J jnl
Kaczmarz extended algorithm for tomographic image reconstruction from limited-data.
Math. Comput. Simul.
Constantin Popa, Rafal Zdunek
2003 J jnl
Modified Kovarik Algorithm for Approximate Orthogonalization of Arbitrary Matrices.
Int. J. Comput. Math.
Constantin Popa
2002 J jnl
Preconditioning by Gram matrix approximation for diffusion-convection-reaction equations with discontinuous coefficients.
Math. Comput. Simul.
Gheorghe Juncu, Constantin Popa
2001 J jnl
A method for improving orthogonality of rows and columns of matrices.
Int. J. Comput. Math.
Constantin Popa
2000 J jnl
The numerical identification of the mechanical systems with respect to natural frequences.
Comput. Sci. J. Moldova
Constantin Popa, A. Sharaniuk
1998 J jnl
Mesh independence principle for nonlinear equations on hilbert spaces by preconditioning.
Int. J. Comput. Math.
Constantin Popa
1995 J jnl
Least-squares solution of overdetermined inconsistent linear systems using kaczmarz's relaxation.
Int. J. Comput. Math.
Constantin Popa
1995 J jnl
Preconditioning conjugate gradient method for nonsymmetric systems.
Int. J. Comput. Math.
Constantin Popa