Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Mikhailov Andrei"'
Autor:
Mikhailov, Andrei
We give some examples of Ext groups relevant to computations in the AdS supergravity, using the pure spinor formalism. Our main examples are deformations of $AdS_5\times S^5$ transforming in finite-dimensional representations of the superconformal al
Externí odkaz:
http://arxiv.org/abs/2412.14455
Autor:
Mikhailov, Andrei
Linearized solutions of SUGRA equations of motion are described in the pure spinor formalism by vertex operators. Under supersymmetry transformations, they transform covariantly only up to BRST exact terms. We identify the cohomology class which is t
Externí odkaz:
http://arxiv.org/abs/2311.18589
Publikováno v:
SIGMA 20 (2024), 031, 27 pages
We develop a framework for systematic study of symmetry transformations of sigma-model currents in a special situation, when symmetries have a well-defined projection onto the target space. We then apply this formalism to pure spinor sigma-models, an
Externí odkaz:
http://arxiv.org/abs/2303.14181
Autor:
Mikhailov Andrei
Publikováno v:
Baltic Region, Vol 5, Iss 1, Pp 37-46 (2013)
This article offers a comprehensive definition of international, cross-border, and transnational clusters. The author presents a classification of international clusters of the Baltic Sea states, and identifies cross-border and transnational clusters
Externí odkaz:
https://doaj.org/article/356c2dc7756a4ca3b4369418a37f3b5b
Autor:
Mikhailov Andrei
Publikováno v:
Балтийский регион, Vol 1, Pp 53-66 (2013)
This article offers a comprehensive definition of international, cross-border, and transnational clusters. The author presents a classification of international clusters of the Baltic Sea states, and identifies cross-border and transnational clusters
Externí odkaz:
https://doaj.org/article/afc78807139243648b76f447f244d393
Autor:
Mikhailov, Andrei
We develop a general framework for the insertion of vertex operator on the string worldsheet, in BV formalism. Such insertions correspond to deformations of the Master Action which breaks the gauge symmetry to a subgroup, and then restoring the full
Externí odkaz:
http://arxiv.org/abs/2210.06745
Publikováno v:
Journal of Space Weather and Space Climate, Vol 4, p A12 (2014)
This paper investigates possible use of middle latitude daytime COSMIC and CHAMP ionospheric radio occultation (IRO) electron density profiles (EDPs) to retrieve thermospheric parameters, based on the Mikhailov et al. (2012) method. The aim of this i
Externí odkaz:
https://doaj.org/article/f523e1eb4a6a4d5c9d0ed3499bf17de0
Publikováno v:
Journal of Space Weather and Space Climate, Vol 3, p A15 (2013)
A principal possibility to retrieve basic thermospheric parameters (neutral temperature Tex, atomic [O] and molecular [O2] oxygen as well as molecular nitrogen [N2] concentrations) from the observed daytime electron density profiles Ne(h) in the equa
Externí odkaz:
https://doaj.org/article/d86f4cc9d30d45aea90446ce40189cdd
Autor:
Pietrella Marco, Núñez Marlon, Mikhailov Andrei, Kutiev Ivan, Jakowski Norbert, Egorova Tatiana, Delouille Véronique, Cid Consuelo, Bergeot Nicolas, Belehaki Anna, Tsagouri Ioanna, Potapov Alexander, Qahwaji Rami, Tulunay Yurdanur, Velinov Peter, Viljanen Ari
Publikováno v:
Journal of Space Weather and Space Climate, Vol 3, p A17 (2013)
This paper aims at providing an overview of latest advances in space weather modeling in an operational environment in Europe, including both the introduction of new models and improvements to existing codes and algorithms that address the broad rang
Externí odkaz:
https://doaj.org/article/e3b3b28dedf04571a57f6353440f1a5c
Autor:
Parisi Mario, Magdaleno Sergio, Altadill David, Andonov Borislav, Blanch Estefania, Buresova Dalia, Jakowski Norbert, Lastovicka Jan, Mikhailov Andrei, Mukhtarov Plamen, Pancheva Dora, Perrone Loredana, Tsagouri Ioanna, Kutiev Ivan, Miquel Torta Joan
Publikováno v:
Journal of Space Weather and Space Climate, Vol 3, p A06 (2013)
The paper describes results of the studies devoted to the solar activity impact on the Earth’s upper atmosphere and ionosphere, conducted within the frame of COST ES0803 Action. Aim: The aim of the paper is to represent results coming from differen
Externí odkaz:
https://doaj.org/article/79be234d739d4260b453db7cb93f8bd7