Preconditioning conjugate gradient method for nonsymmetric systems. - Constantin Popa (Int. J. Comput. Math., 1995)

Least-squares solution of overdetermined inconsistent linear systems using kaczmarz's relaxation. - Constantin Popa (Int. J. Comput. Math., 1995)

Mesh independence principle for nonlinear equations on hilbert spaces by preconditioning. - Constantin Popa (Int. J. Comput. Math., 1998)

The numerical identification of the mechanical systems with respect to natural frequences. - Constantin Popa; A. Sharaniuk (Comput. Sci. J. Moldova, 2000)

A method for improving orthogonality of rows and columns of matrices. - Constantin Popa (Int. J. Comput. Math., 2001)

Preconditioning by Gram matrix approximation for diffusion-convection-reaction equations with discontinuous coefficients. - Gheorghe Juncu; Constantin Popa (Math. Comput. Simul., 2002)

Modified Kovarik Algorithm for Approximate Orthogonalization of Arbitrary Matrices. - Constantin Popa (Int. J. Comput. Math., 2003)

An iterative algorithm for approximate orthogonalisation of symmetric matrices. - Marcus Mohr 001; Constantin Popa; Ulrich Rüde (Int. J. Comput. Math., 2004)

Kaczmarz extended algorithm for tomographic image reconstruction from limited-data. - Constantin Popa; Rafal Zdunek (Math. Comput. Simul., 2004)

A new version of Kovarik's approximate orthogonalization algorithm without matrix inversion. - Dana Petcu; Constantin Popa (Int. J. Comput. Math., 2005)

Numerical solution of symmetric least-squares problems with an inversion-free Kovarik-type algorithm. - Marcus Mohr 001; Constantin Popa (Int. J. Comput. Math., 2008)

On numerical solution of arbitrary symmetric linear systems by approximate orthogonalization. - Constantin Popa (Math. Comput. Simul., 2008)

Iterative solvers for Tikhonov regularization of dense inverse problems. - Constantin Popa (Int. J. Comput. Math., 2010)

A hybrid Kaczmarz-Conjugate Gradient algorithm for image reconstruction. - Constantin Popa (Math. Comput. Simul., 2010)

A general extending and constraining procedure for linear iterative methods. - Aurelian Nicola; Stefania Petra; Constantin Popa; Christoph Schnörr (Int. J. Comput. Math., 2012)

Supplementary projections for the acceleration of Kaczmarz algorithm. - I. Pomparau; Constantin Popa (Appl. Math. Comput., 2014)

Han-type algorithms for inconsistent systems of linear inequalities - A unified approach. - Constantin Popa; Cristina Serban (Appl. Math. Comput., 2014)

Family constraining of iterative algorithms. - Yair Censor; Ioana Pantelimon; Constantin Popa (Numer. Algorithms, 2014)

Numerical solutions to singular ϕ-Laplacianwith Dirichlet boundary conditions. - Petru Jebelean; Constantin Popa (Numer. Algorithms, 2014)

Regularized solution of LCP problems with application to rigid body dynamics. - Constantin Popa; Tobias Preclik; Ulrich Rüde (Numer. Algorithms, 2015)

Single projection Kaczmarz extended algorithms. - Stefania Petra; Constantin Popa (Numer. Algorithms, 2016)

Erratum to: Single projection Kaczmarz extended algorithms. - Stefania Petra; Constantin Popa (Numer. Algorithms, 2017)

Splitting methods for the numerical solution of multi-component mass transfer problems. - Gheorghe Juncu; Aurelian Nicola; Constantin Popa (Math. Comput. Simul., 2018)

Convergence rates for Kaczmarz-type algorithms. - Constantin Popa (Numer. Algorithms, 2018)

The permutation entropy and its applications on fire tests data. - Flavia-Corina Mitroi-Symeonidis; Ion Anghel; Octavian Lalu; Constantin Popa (CoRR, 2019)

On numerical solution of full rank linear systems. - Andrei Dumitrasc; Philippe Leleux; Constantin Popa; Daniel Ruiz 002; Ulrich Rüde (CoRR, 2019)

Correction to: convergence rates for Kaczmarz-type algorithms. - Constantin Popa (Numer. Algorithms, 2019)

Extensions of the Augmented Block Cimmino Method to the Solution of Full Rank Rectangular Systems. - Andrei Dumitrasc; Philippe Leleux; Constantin Popa; Ulrich Rüde; Daniel Ruiz 002 (SIAM J. Sci. Comput., 2021)