1.1. J. Davidov, Harmonic almost Hermitian structures, Differential Geometry Day 2018, October 5, 2018, Istanbul Technical University, Turkey
1.2. O. Mushkarov, Partial Integrability of Almost Complex Structures, Differential Geometry Day 2018, October 5, 2018, Istanbul Technical University, Turkey
1.3. O. Mushkarov, Partial Integrability of Almost Complex Structures, Complex Analysis and Mathematical Physics (Armen 70), Steklov Institute of Mathematics, Moscow, 18.03-22.03.2019
1.4. N. Nikolov, Gromov hyperbolicity of the Kobayashi metric on C-convex domains, International Conference „New Trends in the Applications of Differential Equations in Sciences”, June 2018, Sofia (пленарен доклад)
1.5. Н. Николов, Хипотеза на Суита, Национален колоквиум по математика, 27.02.2019 г. (доклад по покана)
1.6. V. Milousheva, G. Ganchev, Surfaces with Parallel Normalized Mean Curvature Vector Field in 4-Spaces, XX Geometrical seminar, Vrnjačka Banja, Serbia, May 20 – 23, 2018
1.7. G. Ganchev, Surfaces of constant mean curvature in R^3_1 isometric to a given one and minimal surfaces in R^4 strongly isometric to a given one, International Colloquium on Differential Geometry and its Related Fields, V. Tarnovo, September 4 – 8, 2018
1.8. V. Milousheva, Meridian Surfaces with Parallel Normalized Mean Curvature Vector Field in Pseudo-Euclidean 4-Space with Neutral Metric, International Colloquium on Differential Geometry and its Related Fields, V. Tarnovo, September 4 – 8, 2018
1.9. V. Milousheva, Y. Aleksieva, Minimal Lorentz Surfaces in Pseudo-Euclidean 4- Space with Neutral Metric, International Colloquium on Differential Geometry and its Related Fields, V. Tarnovo, September 4 – 8, 2018
1.10. V. Bencheva, On the geometry of curves and surfaces in barycentrics (with M. Hristov), International Colloquium on Differential Geometry and its Related Fields, V. Tarnovo, September 4 – 8, 2018
1.11. V. Milousheva, Y. Aleksieva, Natural PDEs describing minimal Lorentz surfaces in pseudo-Euclidean 4-space with neutral metric, Symposium on Differential Models in Geometry, Computer Science and Hydrotechnics, DiMoGeCH, Iasi, Romania, May 22 – 25, 2019
2.1. N. Nikolov, Strong localization of invariant metrics, Seminar on Complex Analysis, meeting 2257, November 4, 2019, Kraków, Poland, http://www2.im.uj.edu.pl/katedry/complex/arch/abstracts/1920/2257.pdf
2.2. N. Nikolov, Quantitative localization and comparison of invariant distances of domains in C^n, INdAM Workshop 2021 “Gromov hyperbolicity and negative curvature in complex analysis”, Palazzone Scuola Normale Superiore, Cortona Italy, 6–10 September 2021, https://www.youtube.com/watch?v=eGhnP3xUgMU
2.3. N. Nikolov, Suita conjecture, New Trends in the Applications of Differential Equations in Sciences (NTADES), 1– 4 July 2019, St. Constantine and Helena, Bulgaria. https://math.bas.bg/event/ntades-2019
2.4. V. Milousheva, Local Theory of Surfaces with Parallel Normalized Mean Curvature Vector Field in Pseudo-Euclidean 4-Space, Differential Geometry and its Applications, Hradec Králové, Czech Republic, September 2 – 6, 2019, http://dga2019.uhk.cz/PROGRAMME_NEW.pdf
2.5. V. Milousheva, Quasi-minimal (marginally trapped) Lorentz surfaces in pseudo-Euclidean 4-space with neutral metric, Seminar Informal de Noutăţi Geometrice (SING), Universitatea “Alexandru Ioan Cuza” din Iaşi, October 23, 2020, Iasi, Romania, https://www.math.uaic.ro/index.php?lb=0&id=717
2.6. V. Milousheva, Marginally trapped (quasi-minimal) surfaces in pseudo-Euclidean 4-spaces, Women in Mathematics in South-Eastern Europe, December 10 – 11, 2020, Sofia, Bulgaria, https://icms.bg/women-in-math-2020/
2.7. V. Milousheva, Minimal Lorentz surfaces in pseudo-Euclidean 4-space with neutral metric and their canonical Weierstrass representation, Geometry and Homological Mirror Symmetry, International Laboratory for Mirror Symmetry and Automorphic Forms, HSE National Research University, Sirius Mathematics Center, Sochi, December 11 – 14, 2021, Sochi, Russia, https://ms.hse.ru/data/2021/12/20/1776728188/Program_016w.pdf
2.8. V. Bencheva, Applications of the barycentric geometry to the elliptic curves, Национален семинар по теория на кодирането „Професор Стефан Додунеков”, 21 – 24 ноември 2019, https://tinyurl.com/4bfhj6h6
2.9. V. Bencheva, General Rotational Surfaces in Pseudo-Euclidean 4-Spaces, Общ семинар на секция „Анализ, геометрия и топология“, юни 2021, https://tinyurl.com/bdbtae6e