Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Yudin Ivan"'
Autor:
De Nicola, Antonio, Yudin, Ivan
We introduce the Darboux-Lie derivative for fiber-bundle maps from natural bundles to associated fiber bundles and study its properties.
Comment: 21 pages
Comment: 21 pages
Externí odkaz:
http://arxiv.org/abs/2409.06596
In the present paper we compute the Jacobian group of $\Delta$-graph $\Delta(n; k, l, m).$ The notion of $\Delta$-graph continues the list of families of $I$-, $Y$- and $H$-graphs well-known in the graph theory. In particular, graph $\Delta(n; 1, 1,
Externí odkaz:
http://arxiv.org/abs/2211.12007
Autor:
De Nicola, Antonio, Yudin, Ivan
Publikováno v:
International Mathematics Research Notices, 2024, 2024 (15), 11221--11238
We show that every compact aspherical Sasakian manifold with nilpotent fundamental group is diffeomorphic to a Heisenberg nilmanifold.
Comment: 23 pages, to appear in IMRN
Comment: 23 pages, to appear in IMRN
Externí odkaz:
http://arxiv.org/abs/2207.14233
Publikováno v:
Annals of Global Analysis and Geometry, 61 (2022) 479-497
We study a natural class of LCK manifolds that we call integrable LCK manifolds: those where the anti-Lee form $\eta$ corresponds to an integrable distribution. As an application we obtain a characterization of unimodular integrable LCK Lie algebras
Externí odkaz:
http://arxiv.org/abs/2108.00935
Autor:
Santana, Ana Paula, Yudin, Ivan
It is important for applications of Homological Algebra in Representation Theory to have control over the behaviour of (minimal) projective resolutions under various functors. In this article we describe three broad families of functors that preserve
Externí odkaz:
http://arxiv.org/abs/2107.12241
In our previous work arXiv:1306.1770, we found all Borel-Schur algebra of finite representation type. In the present article, we determine which Borel-Schur algebras of infinite representation type are tame, and which are wild.
Comment: 26 pages
Comment: 26 pages
Externí odkaz:
http://arxiv.org/abs/1912.05387
Publikováno v:
Complex Manifolds 6 (2019), 320-334
We provide a new, self-contained and more conceptual proof of the result that an almost contact metric manifold of dimension greater than 5 is Sasakian if and only if it is nearly Sasakian.
Comment: 17 pages
Comment: 17 pages
Externí odkaz:
http://arxiv.org/abs/1904.01516
Autor:
Kuvshinskii, Mickail, Oreshkin, Sergey, Popov, Sergey, Rudenko, Valentin, Yudin, Ivan, Azarova, Valentina, Blagov, Sergey
Publikováno v:
MDPI Applied Sciences 2019, 9, 230
Experiments were performed with Fabry-Perot optical resonators in vacuum at low temperatures. Mirrors were applied on substrates of various optical materials. The infrared laser with a wavelength of 1.064 microns was used. The pump power at the maxim
Externí odkaz:
http://arxiv.org/abs/1902.03452
Publikováno v:
Israel Journal of Mathematics, 241 (2021) 37-87
We provide models that are as close as possible to being formal for a large class of compact manifolds that admit a transversely Kaehler structure, including Vaisman and quasi-Sasakian manifolds. As an application we are able to classify the correspo
Externí odkaz:
http://arxiv.org/abs/1712.09949
Autor:
Santana, Ana Paula, Yudin, Ivan
Publikováno v:
Journal of Algebra & Its Applications; Dec2024, Vol. 23 Issue 14, p1-16, 16p
