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pro vyhledávání: '"Stoyanova M."'
We derive universal lower and upper bounds for max-min and min-max problems (also known as polarization) for the potential of spherical $(k,k)$-designs and provide certain examples, including unit-norm tight frames, that attain these bounds. The univ
Externí odkaz:
http://arxiv.org/abs/2411.00290
We develop a framework for obtaining linear programming bounds for spherical codes whose inner products belong to a prescribed subinterval $[\ell,s]$ of $[-1,1)$. An intricate relationship between Levenshtein-type upper bounds on cardinality of codes
Externí odkaz:
http://arxiv.org/abs/1801.07334
Publikováno v:
In Engineering Science and Technology, an International Journal September 2022 33
Autor:
Kocheva, D., Rainovski, G., Jolie, J., Pietralla, N., Blazhev, A., Astier, A., Braunroth, Th., Cortés, M. L., Dewald, A., Djongolov, M., Fransen, C., Gladnishki, K., Hennig, A., Karayonchev, V., Keatings, J. M., Litzinger, J., Müller-Gatermann, C., Petkov, P., Scheck, M., Spagnoletti, P., Scholz, Ph., Stahl, C., Stegmann, R., Stoyanova, M., Thöle, P., Warr, N., Werner, V., Witt, W., Wölk, D., Zell, K. O., Van Isacker, P., Ponomarev, V. Yu.
The lifetimes of the $2^+_1$, the $2^+_2$ and the $3^-_1$ states of $^{210}$Po have been measured in the $^{208}$Pb($^{12}$C,$^{10}$Be)$^{210}$Po transfer reaction by the Doppler-shift attenuation method. The results for the lifetime of the $2^+_1$ s
Externí odkaz:
http://arxiv.org/abs/1706.04495
Akademický článek
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Akademický článek
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Autor:
Stoyanova M; Department of Organic Chemistry, Faculty of Chemistry, University of Plovdiv, 4000 Plovdiv, Bulgaria., Milusheva M; Department of Organic Chemistry, Faculty of Chemistry, University of Plovdiv, 4000 Plovdiv, Bulgaria.; Department of Bioorganic Chemistry, Faculty of Pharmacy, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria., Gledacheva V; Department of Medical Physics and Biophysics, Faculty of Pharmacy, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria., Stefanova I; Department of Medical Physics and Biophysics, Faculty of Pharmacy, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria., Todorova M; Department of Organic Chemistry, Faculty of Chemistry, University of Plovdiv, 4000 Plovdiv, Bulgaria., Kircheva N; Institute of Optical Materials and Technologies 'Acad. J. Malinowski', Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria., Angelova S; Institute of Optical Materials and Technologies 'Acad. J. Malinowski', Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria.; University of Chemical Technology and Metallurgy, 8 St. Kliment Ohridski Blvd, 1756 Sofia, Bulgaria., Pencheva M; Department of Medical Physics and Biophysics, Faculty of Pharmacy, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria., Stojnova K; Department of General and Inorganic Chemistry with Methodology of Chemistry Education, Faculty of Chemistry, University of Plovdiv, 4000 Plovdiv, Bulgaria., Tsoneva S; Department of Analytical Chemistry and Computer Chemistry, University of Plovdiv, 4000 Plovdiv, Bulgaria., Nikolova S; Department of Organic Chemistry, Faculty of Chemistry, University of Plovdiv, 4000 Plovdiv, Bulgaria.
Publikováno v:
Biomedicines [Biomedicines] 2024 Oct 12; Vol. 12 (10). Date of Electronic Publication: 2024 Oct 12.
Linear programming (polynomial) techniques are used to obtain lower and upper bounds for the potential energy of spherical designs. This approach gives unified bounds that are valid for a large class of potential functions. Our lower bounds are optim
Externí odkaz:
http://arxiv.org/abs/1509.07837
We derive and investigate lower bounds for the potential energy of finite spherical point sets (spherical codes). Our bounds are optimal in the following sense -- they cannot be improved by employing polynomials of the same or lower degrees in the De
Externí odkaz:
http://arxiv.org/abs/1503.07228
Publikováno v:
Acta Medica Bulgarica, Vol 47, Iss 4, Pp 24-30 (2020)
Background: Data on the clinical characteristics of premenstrual syndrome (PMS) with co-morbid major depressive disorder (MDD) are scarce. Although selective serotonin re-uptake inhibitors (SSRIs) are widely used to treat both PMS and MDD there is li
Externí odkaz:
https://doaj.org/article/095ebc5f28aa4dba9c2aa350974659ce