Zobrazeno 1 - 10
of 509
pro vyhledávání: '"Stepanov, Sergey"'
Autor:
Utkin, Denis V., Stepanov, Sergey A.
Publikováno v:
Известия Саратовского университета. Новая серия: Серия Химия. Биология. Экология, Vol 23, Iss 2, Pp 236-247 (2023)
The review presents the origins of the study of microbiology at the Saratov State University, the formation and development from the establishment of the Department of Microbiology at Saratov University in 1918 under the leadership of Alexei Ilyich B
Externí odkaz:
https://doaj.org/article/464d32602a914a19ba091d95abe48393
This paper establishes the conditions under which minimal and stable minimal hypersurfaces are characterized as hyperplanes in Euclidean spaces and as totally geodesic submanifolds in Riemannian manifolds.
Externí odkaz:
http://arxiv.org/abs/2409.04426
In present article, we consider a $L^2$-orthogonal decomposition of the second fundamental form of a closed spacelike hypersurface in a Lorentzian spacetime and its applications to the study of some algebraic-differential properties of the general re
Externí odkaz:
http://arxiv.org/abs/2406.04760
In the paper, we study complete almost Ricci solitons using the concepts and methods of geometric dynamics and geometric analysis. In particular, we characterize Einstein manifolds in the class of complete almost Ricci solitons. Then, we examine comp
Externí odkaz:
http://arxiv.org/abs/2304.03584
In this article, we consider an orthogonal decomposition of the traceless part of the Ricci tensor of a compact Riemannian manifold and study its application to the geometry of compact almost Ricci solitons. In addition, we consider an orthogonal exp
Externí odkaz:
http://arxiv.org/abs/2302.02799
Autor:
Stepanov, Sergey, Tsyganok, Irina
In this paper, we prove several Liouville-type theorems on the non-existence of Killing-Yano tensors, Killing tensors, and harmonic symmetric tensors on Hadamard manifolds and, in particular, on Riemannian symmetric spaces of non-compact type. These
Externí odkaz:
http://arxiv.org/abs/2205.00332
Autor:
Catonini, Emiliano, Stepanov, Sergey
A privately-informed sender can commit to any disclosure policy towards a receiver. We show that full disclosure is optimal under a sufficient condition with some desirable properties. First, it speaks directly to the utility functions of the parties
Externí odkaz:
http://arxiv.org/abs/2202.07944
Autor:
Kharisova, Rufina, Babkina, Anastasiia, Zyryanova, Ksenia, Kuzmenko, Natalia, Leonidova, Aleksandra, Valiev, Damir, Stepanov, Sergey, Sgibnev, Yevgeniy, Shelaev, Artem, Baryshev, Alexander
Publikováno v:
In Ceramics International 1 July 2024 50(13) Part B:24618-24625