| Analysis and modeling of daily air pollutants in the city of Ruse, Bulgaria I Zheleva, E Veleva, M Filipova AIP Conference Proceedings 1895 (1), 2017 | 27 | 2017 |
| Markov chains modelling of particulate matter (PM10) air contamination in the city of Ruse, Bulgaria E Veleva, IR Georgiev, I Zheleva, M Filipova AIP Conference Proceedings 2302 (1), 2020 | 21 | 2020 |
| GARCH models for particulate matter PM10 air pollutant in the city of Ruse, Bulgaria E Veleva, I Zheleva Application of Mathematics in Technical and Natural Sciences 2025, 040016-1-9, 2018 | 16 | 2018 |
| Testing a normal covariance matrix for small samples with monotone missing data E Veleva Applied Mathematical Sciences 3 (54), 2671-2679, 2009 | 14 | 2009 |
| Statistical modeling of particle mater air pollutants in the city of Ruse, Bulgaria E Veleva, I Zheleva MATEC Web of Conferences 145, 01010, 2018 | 13 | 2018 |
| Some marginal densities of the sample correlation coefficients of independent normally distributed random variables EI Veleva Annuaire de l’Universite de Sofia” St. Kliment Ohridski”, Faculte des …, 2006 | 11 | 2006 |
| Comparison of heuristic algorithms for solving a specific model of transportation problem I Georgiev, D Grozev, V Pavlov, E Veleva AIP Conference Proceedings 2302 (1), 060004, 2020 | 10 | 2020 |
| Seasonality of the levels of particulate matter PM10 air pollutant in the city of Ruse, Bulgaria E Veleva, IR Georgiev AIP Conference Proceedings 2302 (1), 2020 | 8 | 2020 |
| Statistical study of particulate matter (PM10) air contamination in the city of Vidin, Bulgaria E Veleva, M Filipova, I Zheleva AIP Conference Proceedings 2522 (1), 2022 | 7 | 2022 |
| Properties of the Bellman gamma distribution E Veleva Pliska Studia Mathematica Bulgarica 20 (1), 221p-232p, 2011 | 6 | 2011 |
| Stochastic representations of the Bellman gamma distribution E Veleva Int. Conf. on Theory and Applications of Mathematics and Informatics, ICTAMI …, 2009 | 6 | 2009 |
| Uniform random positive definite matrix generating E Veleva Math. and Education in Math 35, 315-320, 2006 | 6 | 2006 |
| Decomposition techniques for modelling the levels of particulate matter PM10 air pollutant in the city of silistra, Bulgaria E Veleva, I Zheleva, I Georgiev AIP Conference Proceedings 2302 (1), 2020 | 5 | 2020 |
| Some new properties of Wishart distribution E Veleva Applied Mathematical Sciences 2 (54), 2673-2682, 2008 | 5 | 2008 |
| Distributions of joint sample correlation coefficients of independent normally distributed random variables E Veleva, T Ignatov Advanced Studies in Contemporary Mathematics, 247 – 254, 2006 | 5 | 2006 |
| Positive definite random matrices E Veleva COMPTES RENDUS-ACADEMIE BULGARE DES SCIENCES 59 (4), 353, 2006 | 5 | 2006 |
| Test for Independence of the Variables with Missing Elements in One and the Same Column of the Empirical Correlation Matrix E Veleva Serdica Mathematical Journal 34 (2), 509p-530p, 2008 | 4 | 2008 |
| A representation of the Wishart distribution by functions of independent random variables EI Veleva Annuaire de l’Universite de Sofia St. Kliment Ohridski, Faculte des Sciences …, 2007 | 4 | 2007 |
| Практически курс по Числени методи за инженерни специалности С Караколева, Е Велева Математика и математическо образование, 260-265, 0 | 4 | |
| Some marginal densities of the Wishart distribution E Veleva Union of Bulgarian Mathematicians, 2012 | 3 | 2012 |
Ivanka ZhelevaProf. PhD, DSc at Ruse UniversityBestätigte E-Mail-Adresse bei uni-ruse.bg
