Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Alexander Baransky"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 4, Pp 1-13 (2022)
Abstract In this manuscript, we construct generalized Ellis–Bronnikov wormholes in the context of f(R) modified theories of gravity. We consider that the matter driving the wormhole satisfies the energy conditions so that it is the effective energy
Externí odkaz:
https://doaj.org/article/2c9fa64accf944838ded488fc2d6590f
Autor:
Oleksii Sokoliuk, Alexander Baransky
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-15 (2021)
Abstract We study Morris–Thorne static traversable wormhole solutions in different modified theories of gravity. We focus our study on the quadratic gravity $$f({\mathscr {R}}) = {\mathscr {R}}+a{\mathscr {R}}^2$$ f ( R ) = R + a R 2 , power-law $$
Externí odkaz:
https://doaj.org/article/8ebd21fc0796488fb98089b6cafb7232
Publikováno v:
Nuclear Physics B, Vol 980, Iss , Pp 115845- (2022)
For the spherically symmetric static traversable wormholes, supported by the Casimir energy in f(R)=R+αR2 Quadratic, f(R)=f0Rn power-law Modified Gravity (MOG) theories we investigate energy conditions and dynamical stability of the wormhole solutio
Externí odkaz:
https://doaj.org/article/d20f5f9c565d4631890441e4ff7f6c44
Publikováno v:
Physics Letters B, Vol 829, Iss , Pp 137048- (2022)
In the current letter, we study isotropic static spherically symmetric gravastars without charge under the framework of braneworld gravity (dimensionally reduced RS-II braneworld with positive brane tension) using the metric potential of Kuchowicz ty
Externí odkaz:
https://doaj.org/article/785f9b075d604b2ebc8c3e4aad7a62df
Publikováno v:
Geo&Bio, Vol 19, Pp 92-103 (2020)
The star gentian (Gentiana cruciata L.) is an herbaceous perennial plant of the Gentianaceae family, is included in either Red Data Books or Red Lists of nine European countries and Lists of regional rare species of two regions of Ukraine. G. criciat
Externí odkaz:
https://doaj.org/article/e5fe7410c7ef4a8ab39d1aece73de2ff
We investigate the exponential $f(Q)$ symmetric teleparallel gravitation, namely $f(Q)=Q+\alpha Q_0(1-e^{-\beta\sqrt{Q/Q_0}})$ using \texttt{ME-GADGET} code to probe the structure formation with box sizes $L_{\mathrm{box}}=10/100$ Mpc$/h$ and middle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fad91c98a89b5a4ca6fac139e5db9519
http://arxiv.org/abs/2303.17341
http://arxiv.org/abs/2303.17341
Publikováno v:
Вісті Біосферного заповідника «Асканія-Нова». :58-63
Викладені результати дослідження сучасного стану рідкісних видів рослин на території національного природного парку "Залісся", виявле
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f996553b1476479a873c90b384962c16
https://doi.org/10.53904/1682-2374/2021-23/8
https://doi.org/10.53904/1682-2374/2021-23/8
Autor:
Victor Melnyk, Alexander Baransky, Sergey Savchuk, Dmitryi Dubovyk, Artem Leostrin, Natalia Melnyczenko
Publikováno v:
Ecological Questions. 33:1-17
Regularities of dynamics of geographical didstribution of Scotch broom (Cytisus scoparius (L.) Link., Fabaceae) in the East European plain (Ukraine, Belorus) over the past 200 years are established. This species absent in floristic reports of XIX cen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9caebf0cbfe2dc61a16770314cfa725
https://doi.org/10.12775/eq.2022.024
https://doi.org/10.12775/eq.2022.024
Autor:
Alexander Baransky
Publikováno v:
Ukrainian Botanical Journal. 79:91-102
Geographical distribution, ecological conditions and the current state of populations of a regionally rare species of the Ukrainian flora, Moneses uniflora (Ericaceae), were studied. In Ukraine, this species is at the southern limit of its range in E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e5ca6f2c25b4036b8b56c81657bed1e
https://doi.org/10.15407/ukrbotj79.02.091
https://doi.org/10.15407/ukrbotj79.02.091
Publikováno v:
The European Physical Journal Plus. 137
In the present paper, authors study the strange stars with the MIT Bag EoS admitting Buchdahl symmetry (non-singular and physically viable metric potential) in the both linear $f(Q)=aQ+b$ and non-linear $f(Q)=Q+aQ^b$ forms of modified symmetric telep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13bde80553f98bab369c12c5db9909fe
https://doi.org/10.1140/epjp/s13360-022-03273-7
https://doi.org/10.1140/epjp/s13360-022-03273-7