815 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- I. Oseledets26 · h 51
- A. Bogatyrev13 · h 10
- K. Metlov11 · h 14
- S. Matveev4 profiles10 · h 9
- A. Smirnov4 profiles8 · h 24
- M. Rakhuba2 profiles7 · h 6
- N. Brilliantov2 profiles6 · h 30
- P. Krapivsky2 profiles6 · h 45
- Alexander Osinsky2 profiles5 · h 12
- E. Tyrtyshnikov5 · h 32
- P. Berloff5 · h 33
- S. Budzinskiy5 · h 6
- Russian Academy of SciencesRU62 papers
- Skolkovo Institute of Science and TechnologyRU35 papers
- Lomonosov Moscow State UniversityRU22 papers
- Moscow Institute of Physics and TechnologyRU13 papers
- Donetsk Institute for Physics and Engineering named after O.O. GalkinUA7 papers
- Imperial College LondonGB6 papers
- Boston UniversityUS5 papers
- National Research University Higher School of EconomicsRU5 papers
- University of LeicesterGB5 papers
- University of HoustonUS4 papers
- University of ReadingGB4 papers
- ETH ZurichCH3 papers
100 papers
On circular Kippenhahn curves and the Gau-Wang-Wu conjecture about nilpotent partial isometries
Eric Shen
We study linear operators on a finite-dimensional space whose Kippenhahn curves consist of concentric circles centered at the origin. We say that such operators have Circularity pr…
Accelerated alternating minimization algorithm for low-rank approximations in the Chebyshev norm
Stanislav Morozov, Dmitry Zheltkov, Alexander Osinsky
Nowadays, low-rank approximations of matrices are an important component of many methods in science and engineering. Traditionally, low-rank approximations are considered in unitar…
Adaptive time-stepping for aggregation-shattering kinetics
Sergey A. Matveev, Viktor Zhilin, Alexander P. Smirnov
We propose an experimental study of adaptive time-stepping methods for efficient modeling of the aggregation-fragmentation kinetics. Precise modeling of this phenomena usually requ…
Small-angle neutron scattering signatures of magnetic hopfions
Konstantin L. Metlov, Andreas Michels
Magnetic hopfions are three-dimensional localized magnetic topological solitons which can exist in the bulk of magnetic materials. Based on a Ritz model for magnetic hopfions in a…
Estimates for the quantized tensor train ranks for the power functions
Sergey A. Matveev, Matvey Smirnov
In this work we provide theoretical estimates for the ranks of the power functions , in the quantized tensor train (QTT) format for $k = 1, 2, 3, \ldots, 2^{d}…
Nonnegative tensor train for the multicomponent Smoluchowski equation
Sergey A. Matveev, Ilya Tretyak
We propose an efficient implementation of the numerical tensor-train (TT) based algorithm solving the multicomponent coagulation equation preserving the nonnegativeness of solution…
Gelation in input-driven aggregation
P. L. Krapivsky, Sergey A. Matveev
We investigate irreversible aggregation processes driven by a source of small mass clusters. In the spatially homogeneous situation, a well-mixed system is consists of clusters of…
Hydrodynamic equations for space-inhomogeneous aggregating fluids with first-principle kinetic coefficients
Alexander Osinsky, Nikolay Brilliantov
We derive from the first principles new hydrodynamic equations -- Smoluchowski-Euler equations for aggregation kinetics in space-inhomogeneous fluids with fluxes. Starting from Bol…
Parametric Finite Element Discretization of the Surface Stokes Equations
Hanne Hardering, Simon Praetorius
We study a higher-order surface finite element (SFEM) penalty-based discretization of the tangential surface Stokes problem. Several discrete formulations are investigated which ar…
Finite Size Effects in Addition and Chipping Processes
Roman R. Dyachenko, Sergey A. Matveev, P. L. Krapivsky
We investigate analytically and numerically a system of clusters evolving via collisions with clusters of minimal mass (monomers). Each collision either leads to the addition of th…
Steady oscillations in aggregation-fragmentation processes
N. V. Brilliantov, W. Otieno, S. A. Matveev +3
We report surprising steady oscillations in aggregation-fragmentation processes. Oscillating solutions are observed for the class of aggregation kernels …
Heterogeneity of the Attractor of the Lorenz '96 Model: Lyapunov Analysis, Unstable Periodic Orbits, and Shadowing Properties
Chiara Cecilia Maiocchi, Valerio Lucarini, Andrey Gritsun +1
The predictability of weather and climate is strongly state-dependent: special and extremely relevant atmospheric states like blockings are associated with anomalous instability. I…
Subgrid parameterizations of ocean mesoscale eddies based on Germano decomposition
Pavel Perezhogin, Andrey Glazunov
Ocean models at intermediate resolution (1/4 degree), which partially resolve mesoscale eddies, can be seen as Large eddy simulations (LES) of the primitive equations, in which the…
Fingerprint of vortex-like flux closure in isotropic Nd-Fe-B bulk magnet
Mathias Bersweiler, Yojiro Oba, Evelyn Pratami Sinaga +5
Taking advantage of recent progress in neutron instrumentation and in the understanding of magnetic-field-dependent small-angle neutron scattering, here, we study the three-dimensi…
Topological magnetic memory with multiply-connected planar magnetic nanoelements
Konstantin L. Metlov
A coding scheme is introduced, allowing to store a set of linked bit strings in planar magnetic nanoelements with holes. Analytical expressions for the corresponding magnetization…
Exponential Euler and backward Euler methods for nonlinear heat conduction problems
M. A. Botchev, V. T. Zhukov
In this paper a variant of nonlinear exponential Euler scheme is proposed for solving nonlinear heat conduction problems. The method is based on nonlinear iterations where at each…
Exact solutions of temperature-dependent Smoluchowski equations
Alexander Osinsky, Nikolay Brilliantov
We report a number of exact solutions for temperature-dependent Smoluchowski equations. These equations quantify the ballistic agglomeration, where the evolution of densities of ag…
Completion procedures in measure theory
A. G. Smirnov, M. S. Smirnov
We propose a unified treatment of extensions of group-valued contents (i.e., additive set functions defined on a ring) by means of adding new null sets. Our approach is based on th…
A hyper-parameterization method for comprehensive ocean models: Advection of the image point
Igor Shevchenko, Pavel Berloff
Idealized and comprehensive ocean models at low resolutions cannot reproduce nominally-resolved flow structures similar to those presented in the high-resolution solution. Although…
Low-rank nonnegative tensor approximation via alternating projections and sketching
Azamat Sultonov, Sergey Matveev, Stanislav Budzinskiy
We show how to construct nonnegative low-rank approximations of nonnegative tensors in Tucker and tensor train formats. We use alternating projections between the nonnegative ortha…
Variational Bayesian inference for CP tensor completion with side information
Stanislav Budzinskiy, Nikolai Zamarashkin
We propose a message passing algorithm, based on variational Bayesian inference, for low-rank tensor completion with automatic rank determination in the canonical polyadic format w…
On the solution of a conformal mapping problem by means of Weierstrass functions
Matvey Smirnov
The conformal mapping problem for the section of a channel filled with porous material under a rectangular dam onto the upper half-plane is considered. Similar problems arise in co…
Two types of metastable magnetic hopfions
Konstantin L. Metlov
Localized magnetic topological solitons with Hopf index of 1 in an unbounded bulk magnet are studied theoretically, starting with the classical micromagnetic Hamiltonian. It is sho…
Small-angle neutron scattering by spatially inhomogeneous ferromagnets with a nonzero average uniaxial anisotropy
V. D. Zaporozhets, Y. Oba, A. Michels +1
Micromagnetic small-angle neutron scattering theory is well established for analyzing spin-misalignment scattering data of bulk ferromagnets. Here, this theory is extended to allow…