Výsledky vyhledávání - "Victor Alekseev"

Akademický článek

Localizing non-linear $${{\mathcal {N}}}=(2,2)$$ N = ( 2 , 2 ) sigma model on $$S^2$$ S 2

Autor: Victor Alekseev, Guido Festuccia, Victor Mishnyakov, Nicolai Terziev, Maxim Zabzine

Publikováno v: European Physical Journal C: Particles and Fields, Vol 82, Iss 8, Pp 1-25 (2022)

Abstract We present a systematic study of $${{\mathcal {N}}}=(2,2)$$ N = ( 2 , 2 ) supersymmetric non-linear sigma models on $$S^2$$ S 2 with the target being a Kähler manifold. We discuss their reformulation in terms of cohomological field theory.

Externí odkaz: https://doaj.org/article/aafc2787ba824892b801e9bb3fa7e79e

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Akademický článek

Ust-Luga Seaport of Russia: Biological Invasions and Resting Stages Accumulation

Autor: Victor Alekseev, Natalia Sukhikh

Publikováno v: Life, Vol 13, Iss 1, p 117 (2022)

This article describes the results of a three-year study of invasive species of aquatic ecosystems in the vicinity of Ust-Luga, the largest Russian seaport in the Baltic. Taking into account the great importance of the participation of marine vessels

Externí odkaz: https://doaj.org/article/280b452ff00c46359960bb86e6ad3210

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Akademický článek

Life in sympatry: coexistence of native Eurytemora affinis and invasive Eurytemora carolleeae in the Gulf of Finland (Baltic Sea)

Autor: Natalia Sukhikh, Anissa Souissi, Sami Souissi, Anne-Catherine Holl, Nikolaos V. Schizas, Victor Alekseev

Publikováno v: Oceanologia, Vol 61, Iss 2, Pp 227-238 (2019)

Summary: The invasion of exotic species into native ecosystems is becoming a crucial issue in global biology. Over the last ten years, at least 45 invasions of aquatic species have been reported in the eastern part of the Gulf of Finland; the majorit

Externí odkaz: https://doaj.org/article/46bda644e00d4a40b76cfc0d67e9d8e6

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Akademický článek

Multiplicity-free Uq(slN) 6-j symbols: Relations, asymptotics, symmetries

Autor: Victor Alekseev, Andrey Morozov, Alexey Sleptsov

Publikováno v: Nuclear Physics B, Vol 960, Iss , Pp 115164- (2020)

A closed form expression for multiplicity-free quantum 6-j symbols (MFS) was proposed in [1] for symmetric representations of Uq(slN), which are the simplest class of multiplicity-free representations. In this paper we rewrite this expression in term

Externí odkaz: https://doaj.org/article/ef54428b527b4c81b703a27b82c85a66

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Akademický článek

Biological Invasion of Fish Parasite Neoergasilus japonicus (Harada, 1930) (Copepoda: Ergasilidae) in Lake Grand Laoucien, France: A Field Study on Life Cycle Parameters and Reasons for Unusual High Population Density

Autor: Victor Alekseev, Corinne Cuoc, Dominique Jamet, Jean-Louis Jamet, Remi Chappaz

Publikováno v: Life, Vol 11, Iss 10, p 1100 (2021)

The fish parasite, Neoergasilus japonicus (Harada, 1930), native to Eastern Siberia and the Amur River catchment area, invaded European water bodies in the middle of the last century, possibly due to the human-mediated distribution of fish in the Amu

Externí odkaz: https://doaj.org/article/b5b34ca94ba94a41aebe85b575a07f0b

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