More than 80 scientific publications, including more than 20 articles in peer-reviewed journals.

• Theoretical and optical-luminescent investigations of the complex halides electronic structure.
• Software development, machine learning, computer vision.

• Algorithms and data structures (121 SE HPC)
• Algorithms and data structures (126 Information systems and technologies)
• Algorithms and data structures (126 Information systems and technologies)
• Computing theory, algorithms and data structures (122 Computer Science)
• Discrete Mathematics (121 Software Engineering, High Performance Computing)
• Discrete Mathematics (122 Computer Science)
• Discrete Mathematics (126 Information Systems and Technologies)

1. Low-temperature luminescence of CdI₂ under synchrotron radiation / I.Karbovnyk, V. Pankratov, S. Velgosh, I. Bolesta, R. Lys, I. Kityk, H. Klym, I. Makarenko, V. Pankratova, A.I. Popov // Low Temperature Physics. – 2020. – V. 46. – P. 1213-1216. https://doi.org/10.1063/10.0002476
2. Furgala Yu. Using Color Histograms for Objects Detection in Resized and Rotated Images / Yu. Furgala, A. Velhosh, S. Velhosh, B. Rusyn // Collected Scientific Papers “Electronics and Information Technologies”. – 2020. – Is. 13. – P. 28-37. http://dx.doi.org/10.30970/eli.13.3
3. Bolesta I. Topology of Plasmonic Silver and Gold Pre-Percolation Films / I. Bolesta, A. Vaskiv, S. Velgosh, O. Kushnir, Ya. Shmygelskyy // Journal of Physical Studies. – 2019. ‑ Vol. 23, № 4. ‑ 4601 (7 pages). https://doi.org/10.30970/jps.23.4601
4. Bolesta I. Topology and Fractal Dimension of Nanocomposite Metal-Dielectric Films / I. Bolesta, I. Karbovnyk, O. Kushnir, S. Velhosh, H. Klym, I. Rovetskii // Proceedings of the 2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON-2019). – 2-6 July, 2019. – Lviv, Ukraine, 2019. ‑ P. 756–761. https://doi.org/10.1109/UKRCON.2019.8879801
5. Bolesta I.M. Morphology and Optical Properties of Nanostructures Formed in Non-Stoichiometric СdI₂ Crystals / I.M.Bolesta, I.N. Rovetskii, S.R. Velgosh, S.V. Rykhlyuk, I.D. Karbovnyk, N.V. Gloskovskaya / Ukr. J. Phys. – 2018. – Vol. 63, No. 9. – P. 816-823. https://doi.org/10.15407/ujpe9.816
6. Karbovnyk I. Long-term Evolution of Luminescent Properties in CdI₂ Crystals / I.Karbovnyk, I. Bolesta, I. Rovetskyi, V. Lesivtsiv, Ya. Shmygelsky and  S. Velgosh // Low Temperature Physics. – 2016. – V. 42. – P. 594-596. https://doi.org/10.1063/1.4959019
7. Bolesta I.M. On the Mechanism of Nanostructure Growth on the Surface of CdI₂ Crystals / I. M. Bolesta, I. N. Rovetskii, Z. M. Yaremko, I. D. Karbovnyk, S. R. Velgosh, M. V. Partyka, N. V. Gloskovskaya, V. M. Lesivtsiv // J. Phys. – 2015. ‑ Vol.60, № 11. – P. 1143-1149. https://doi.org/10.15407/ujpe60.11.1143
8. Bolesta I.M. Time dependence of the luminescence intensity in CdBr₂: AgCl, PbBr₂ crystals under N₂-laser excitation at room temperature / I.M. Bolesta, B.M. Kalivoshka, I.D. Karbovnyk, V.M. Lesivtsiv, I.S. Novosad, S.S. Novosad, I.M. Rovetskyy, S.R. Velgosh // Materials Science-Poland. – 2014. – Vol. 32, Is. 4. – P. 604-609. https://doi.org/10.2478/s13536-014-0232-y
9. Karbovnyk I. Studies of CdI₂–Bi₃ microstructures with optical methods, atomic force microscopy and positron annihilation spectroscopy / I. Karbovnyk, I. Bolesta, I. Rovetskii, S. Velgosh, H. Klym // Materials Science-Poland. – 2014. – Vol. 32, Is. 3. – P. 391-395. https://doi.org/10.2478/s13536-014-0215-z
10. Karbovnyk BiI₃ nanoclusters in melt-grown CdI₂ crystals studied by optical absorption spectroscopy / I. Karbovnyk, V. Lesivtsiv, I. Bolesta, S. Velgosh, I. Rovetsky, V. Pankratov, C. Balasubramanian, A. Popov // Physica B: Condenced  Matter. – 2013. – V. 413. – P.12–14. https://doi.org/10.1016/j.physb.2012.10.044
11. Velgosh S. [et al] First-principles simulations of the electronic density of states for superionic Ag₂CdI₄ crystals / S. Velgosh, B. Andriyevsky, I. Karbovnyk, I. Bolesta, O. Bovgyra, W. Ciepluch-Trojanek, I.V. Kityk, A.I. Popov // Solid State Ionics. – 2011. ‑ Vol. 188. – P. 31-35. https://doi.org/10.1016/j.ssi.2010.11.004
12. Bellucci S. [et al]. Influence of Silver Clusters on the Light Absorption in CdBr₂-Ag Crystals / S. Bellucci, I. Bolesta, I. Karbovnyk, I. Kolych, S. Martyniv, S. Velgosh // Journ of Nanophotonics. – 2010. – Vol. 4. – P. 049503. https://doi.org/10.1117/1.3364061
13. Bellucci S. [et al] Cadmium clusters in CdI₂ layered crystals: the influence on the optical properties / S.Bellucci, I. Bolesta, M. Cestelli Guidi, I. Karbovnyk, V. Lesivtsiv, F. Micciulla, R. Pastore, A.I. Popov, and S. Velgosh // J. Phys.: Cond. Matter. – 2007. – Vol. 19. – 395015 (pp. 1-9). https://doi.org/10.1088/0953-8984/19/39/395015
14. Bolesta I. [et al] Optical, infrared and electron-microscopy studies of metallic clusters (Cd_i)_n in layered CdI₂ crystals / Bolesta, S. Velgosh, Yu. Datsiuk, I. Karbovnyk, V. Lesivtsiv, T. Kulay, A.I. Popov, S. Bellucci, M. Cestelli Guidi, A. Marcelli, and M. Piccinini // Radiation Measurements. – 2007. – Vol. 42. ‑ P. 851-854. https://doi.org/10.1016/j.radmeas.2007.02.047
15. Bolesta I. Band energy structure and optical properties of Ag₂CdI₄ superionic compound / I. Bolesta, V.Savchyn, S. Velgosh // Ferroelectrics. ‑ ‑ Vol. 316. ‑ P.153-156. https://doi.org/10.1080/00150190590963282
16. Bolesta I.M. Thermal, electrical and optical studies of phase transitions in Ag₂CdI₄ solid electrolyte / M. Bolesta, I.D. Karbovnyk, S.R. Velgosh, O.V. Futey // Radiation Effects and Defects in Solids. – 2003. – Vol. 158. – P. 157-161. https://doi.org/10.1080/1042015021000052647
17. Bolesta I. Crystalline and band energy structure of Ag₂CdI₄ / I. Bolesta, O. Futey, S. Velgosh // Ukrainian Journal of Physical Optics. – 2000. ‑ Vol. 1, N 1. ‑ P. 13-15. https://doi.org/10.3116/16091833/1/1/13/2000
18. Bolesta I. Band energy structure and optical spectra of Cs₂CdI₄ crystals / I. Bolesta, Y. Furgala, I. Kityk, S. Velgosh // Ferroelectrics Lett. – 1996. – Vol. 21, Is 5-6. ‑ P. 175–178. https://doi.org/10.1080/07315179608204759
19. Bolesta I. Electronic structure of intrinsic and impurity Mn-centres in A₂BX₄ crystals with b-K₂SO₄ type structure / I. Bolesta, I. Kityk, Y. Furgala, S. Velgosh // Radiation Effects and Defects in Solids. – 1995. – Vol. 134, Is. 1-4. ‑P. 65–68. https://doi.org/10.1080/10420159508227184

• Born on June 5, 1972 in Lviv.
• 1979‑1989. Studied at Lviv Secondary School № 37.
• 1989‑1994. Studied at Faculty of Physics of Ivan Franko State University of Lviv.
• 1994‑1997. PhD Student at Ivan Franko National University of Lviv.
• 1994‑2000. Junior researcher of the Research and Development Department..
• 2000‑2007. Assistant of the Radiophysics Department.
• Since 2007. Associate Professor of the Radiophysics and Computer Technology Department.
• 2003. PhD dissertation “Energy Structure and Optical Spectra of A₂BX₄ Group Crystals: A₂CdI₄(A=Cs, Ag) and C_nH_2n+1NH₃)₂MnCl₄(n=2,3)” (specialty: 01.04.10 ‑ Physics of Semiconductors and Dielectrics).
• 2008. Title of Associate Professor.

• Dean’s deputy of scientific, teaching and educational work of the Faculty of Electronics and Computer Technology.
• Member of the Academic Council of the Faculty of Electronics and Computer Technology.
• Editorial Board Member of the Collected Scientific Papers “Electronics and Information Technologies”.
• Organizing Committee Chairman of the IEEE International Conference on Electronics and Information Technologies (ELIT).

1. Velgosh S.R., Karbovnyk I.D., Kovalchuk M.G. Organization and programs of practices. Methodical recommendations for students of “Radiophysics and Electronics” specialty. ‑ Lviv: Ivan Franko Lviv National University Publishing House. ‑ 2006. ‑ 28 p.
2. Velgosh S.R., Karbovnyk I.D., Kovalchuk M.G. Futey O.V. Execution and design of course, diploma and master’s theses: methodical recommendations [for students of the Faculty of Electronics]. ‑ Lviv: Ivan Franko Lviv National University Publishing House. ‑ 2012. ‑ 77 p.

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