Constantin Popa

Publication Activity (10 Years)

Years Active: 1995-2021
Publications (10 Years): 8

Top Topics

Spline Interpolation

Numerical Solution

Convergence Rate

Linear Inequalities

Top Venues

Numer. Algorithms

Appl. Math. Comput.

Math. Comput. Simul.

Publications

Andrei Dumitrasc, Philippe Leleux, Constantin Popa, Ulrich Rüde, Daniel Ruiz
Extensions of the Augmented Block Cimmino Method to the Solution of Full Rank Rectangular Systems. SIAM J. Sci. Comput. 43 (5) (2021)
Flavia-Corina Mitroi-Symeonidis, Ion Anghel, Octavian Lalu, Constantin Popa
The permutation entropy and its applications on fire tests data. CoRR (2019)
Andrei Dumitrasc, Philippe Leleux, Constantin Popa, Daniel Ruiz, Ulrich Rüde
On numerical solution of full rank linear systems. CoRR (2019)
Constantin Popa
Correction to: convergence rates for Kaczmarz-type algorithms. Numer. Algorithms 82 (3) (2019)
Constantin Popa
Convergence rates for Kaczmarz-type algorithms. Numer. Algorithms 79 (1) (2018)
Gheorghe Juncu, Aurelian Nicola, Constantin Popa
Splitting methods for the numerical solution of multi-component mass transfer problems. Math. Comput. Simul. 152 (2018)
Stefania Petra, Constantin Popa
Erratum to: Single projection Kaczmarz extended algorithms. Numer. Algorithms 76 (2) (2017)
Stefania Petra, Constantin Popa
Single projection Kaczmarz extended algorithms. Numer. Algorithms 73 (3) (2016)
Constantin Popa, Tobias Preclik, Ulrich Rüde
Regularized solution of LCP problems with application to rigid body dynamics. Numer. Algorithms 69 (1) (2015)
Stefania Petra, Constantin Popa
Single Projection Kaczmarz Extended Algorithms. CoRR (2015)
I. Pomparau, Constantin Popa
Supplementary projections for the acceleration of Kaczmarz algorithm. Appl. Math. Comput. 232 (2014)
Constantin Popa, Cristina Serban
Han-type algorithms for inconsistent systems of linear inequalities - A unified approach. Appl. Math. Comput. 246 (2014)
Petru Jebelean, Constantin Popa
Numerical solutions to singular ϕ-Laplacianwith Dirichlet boundary conditions. Numer. Algorithms 67 (2) (2014)
Yair Censor, Ioana Pantelimon, Constantin Popa
Family constraining of iterative algorithms. Numer. Algorithms 66 (2) (2014)
Aurelian Nicola, Stefania Petra, Constantin Popa, Christoph Schnörr
A general extending and constraining procedure for linear iterative methods. Int. J. Comput. Math. 89 (2) (2012)
Constantin Popa
Iterative solvers for Tikhonov regularization of dense inverse problems. Int. J. Comput. Math. 87 (14) (2010)
Constantin Popa
A hybrid Kaczmarz-Conjugate Gradient algorithm for image reconstruction. Math. Comput. Simul. 80 (12) (2010)
Constantin Popa
On numerical solution of arbitrary symmetric linear systems by approximate orthogonalization. Math. Comput. Simul. 79 (4) (2008)
Marcus Mohr, Constantin Popa
Numerical solution of symmetric least-squares problems with an inversion-free Kovarik-type algorithm. Int. J. Comput. Math. 85 (2) (2008)
Dana Petcu, Constantin Popa
A new version of Kovarik's approximate orthogonalization algorithm without matrix inversion. Int. J. Comput. Math. 82 (10) (2005)
Constantin Popa, Rafal Zdunek
Kaczmarz extended algorithm for tomographic image reconstruction from limited-data. Math. Comput. Simul. 65 (6) (2004)
Marcus Mohr, Constantin Popa, Ulrich Rüde
An iterative algorithm for approximate orthogonalisation of symmetric matrices. Int. J. Comput. Math. 81 (2) (2004)
Constantin Popa
Modified Kovarik Algorithm for Approximate Orthogonalization of Arbitrary Matrices. Int. J. Comput. Math. 80 (4) (2003)
Gheorghe Juncu, Constantin Popa
Preconditioning by Gram matrix approximation for diffusion-convection-reaction equations with discontinuous coefficients. Math. Comput. Simul. 60 (6) (2002)
Constantin Popa
A method for improving orthogonality of rows and columns of matrices. Int. J. Comput. Math. 77 (3) (2001)
Constantin Popa, A. Sharaniuk
The numerical identification of the mechanical systems with respect to natural frequences. Comput. Sci. J. Moldova 8 (2) (2000)
Constantin Popa
Mesh independence principle for nonlinear equations on hilbert spaces by preconditioning. Int. J. Comput. Math. 69 (3-4) (1998)
Constantin Popa
Least-squares solution of overdetermined inconsistent linear systems using kaczmarz's relaxation. Int. J. Comput. Math. 55 (1-2) (1995)
Constantin Popa
Preconditioning conjugate gradient method for nonsymmetric systems. Int. J. Comput. Math. 58 (1-2) (1995)