| Investigations in the area of soft computing targeted state of the art report V Angelova Cybernetics and Information Technologies 9 (1), 18-24, 2009 | 26 | 2009 |
| Sensitivity of the matrix equation A_0+∑_{i=1}k \sigma_i A_i^* X^n A_i = 0, \sigma_i = \pm 1 M Konstantinov, P Petkov, I Popchev, V Angelova Appl. Comput. Math 10 (3), 409-427, 2011 | 22 | 2011 |
| Norm-wise, mixed and component-wise condition numbers of matrix equation A0+∑ k i= 1 σiA∗ i Xpi Ai= 0, σi=±1 I Popchev, M Konstantinov, P Petkov, V Angelova Appl. Comput. Math 14, 18-30, 2014 | 18 | 2014 |
| Perturbation Bounds for the Nonlinear Matrix Equation X + A^H X^{-1} A + B^H X^{-1} B = I I Popchev, P Petkov, M Konstantinov, V Angelova International Conference on Large-Scale Scientific Computing, 155-162, 2011 | 13* | 2011 |
| CONDITION NUMBERS FOR THE MATRIX EQUATION X + A (H) X (-1) A + B(H) X(-1) B= I I Popchev, M Konstantinov, P Petkov, V Angelova COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES 64 (12), 1679-1688, 2011 | 11 | 2011 |
| Sensitivity of a complex fractional–affine matrix equation MM Konstantinov, PH Petkov, VA Angelova, IP Popchev Proc. Jub. Sci. Conf. Univ. Arch. Civil Eng. Geod 8, 495-504, 2002 | 11 | 2002 |
| Risk averseness and emotional stability in e-commerce I Popchev, R Ketipov, V Angelova Cybernetics and Information Technologies 21 (3), 73-84, 2021 | 10 | 2021 |
| Approximate solutions to large nonsymmetric differential Riccati problems with applications to transport theory V Angelova, M Hached, K Jbilou Numerical Linear Algebra with Applications 27 (1), e2272, 2020 | 9 | 2020 |
| Perturbation bounds for coupled matrix Riccati equations M Konstantinov, V Angelova, P Petkov, D Gu, V Tsachouridis Linear algebra and its applications 359 (1-3), 197-218, 2003 | 9 | 2003 |
| On the sensitivity of the matrix equations X±A∗ X− 1A= Q I Popchev, V Angelova Cybernetics and Information Technologies 10 (4), 36-61, 2010 | 8 | 2010 |
| Perturbation analysis for the matrix equation X = A_1 + \sigma A_2^H X^{-2}A_2, \sigma = \pm 1 V Angelova Ann. Inst. Arch. Genie Civil Geod., 41 (2000-2001), 2003, fasc. II Math. 41 …, 2003 | 8* | 2003 |
| Sensitivity analysis of the differential matrix Riccati equation based on the associated linear differential system M Konstantinov, V Angelova Advances in Computational Mathematics 7, 295-301, 1997 | 8 | 1997 |
| Norm-wise, mixed and component-wise condition numbers of matrix equation A0+∑ k i= 1 σiA∗ i Xpi Ai= 0, σi= 소 1 I Popchev, M Konstantinov, P Petkov, V Angelova Appl. Comput. Math 14, 18-30, 2014 | 5 | 2014 |
| PERTURBATION BOUNDS FOR THE MATRIX EQUATION X^s +/- A^H X^t A= Q M Konstantinov, P Petkov, I Popchev, V Angelova COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES 63 (9), 1265-1272, 2010 | 5 | 2010 |
| Perturbation analysis of differential and difference matrix quadratic equations: a survey MM Konstantinov, PH Petkov, G Pelova, VA Angelova Proceedings of Bulgarian-Turkish-Ukrainian Scientific Conference …, 2010 | 4 | 2010 |
| PERTURBATION BOUNDS FOR THE MATRIX EQUATION C+∑_{i=1}^r A_i X B_i + D X^* E = 0 M Konstantinov, P Petkov, I Popchev, V Angelova C. R. Acad. Bulgare Sci., Mathématiques, Mathématiques appliqués 61 (9 …, 2008 | 4* | 2008 |
| Sensitivity of the solution to nonsymmetric differential matrix Riccati equation V Angelova, M Hached, K Jbilou Mathematics 9 (8), 855, 2021 | 3 | 2021 |
| CONDITION NUMBERS AND LOCAL PERTURBATION BOUNDS FOR THE MATRIX EQUATION X^s ± A^H X^t A= Q IP Popchev, VA Angelova Comptes rendus de l’Academie bulgare des Sciences 66 (1), 21-28, 2013 | 3 | 2013 |
| Perturbation analysis for the complex linear matrix equation \alpha X + \sigma A^H X A = I, \alpha, \sigma = \pm 1 V Angelova Comptes rendus de l'Académie bulgare des sciences: sciences mathématiques et …, 2003 | 3 | 2003 |
| Comparison of perturbation bounds for the matrix equation X= A_1+ A^H_2 X^{−1} A_2 MM Konstantinov, VA Angelova, PH Petkov, IP Popchev Ann. Inst. Arch. Genie Civil Geod., 41 (2000-2001), 2003, fasc. II Math. 41 …, 2003 | 3 | 2003 |
Ivan PopchevAcademician, Bulgarian Academy of SciencesVerified email at iit.bas.bg
