A5061300059- Geometric Analysis and Curvature Flows
- Geometry and complex manifolds
- Enhanced Oil Recovery Techniques
- Hydrocarbon exploration and reservoir analysis
- Seismic Imaging and Inversion Techniques
- Advanced Differential Geometry Research
- Topological and Geometric Data Analysis
- Geometric and Algebraic Topology
- Geological Modeling and Analysis
- CO2 Sequestration and Geologic Interactions
- Hydraulic Fracturing and Reservoir Analysis
- Solidification and crystal growth phenomena
- Medical Imaging Techniques and Applications
- Algebraic Geometry and Number Theory
- Industrial Gas Emission Control
- Catalysis and Hydrodesulfurization Studies
- Black Holes and Theoretical Physics
- Chemical Looping and Thermochemical Processes
- Catalytic Processes in Materials Science
- Advanced Mathematical Modeling in Engineering
- Drilling and Well Engineering
- Metallurgical Processes and Thermodynamics
- Advanced Machining and Optimization Techniques
- Digital Image Processing Techniques
- Seismic Waves and Analysis
Jan Evangelista Purkyně University in Ústí nad Labem
2022-2024
Sobolev Institute of Mathematics
2008-2022
Czech Academy of Sciences, Institute of Mathematics
2017-2022
Institute of Mathematics and Informatics
2017-2022
Siberian Branch of the Russian Academy of Sciences
2008-2022
Institute of Petroleum Geology and Geophysics
2019-2021
University of Hradec Králové
2016-2021
Novosibirsk State University
2011-2021
Russian Academy of Sciences
2013-2020
Novosibirsk Tuberculosis Research Institute
1996
Abstract In order to study the effect of micro‐CT scan resolution and size on accuracy upscaled digital rock property estimation core samples Bentheimer sandstone images with varying from 0.9 μm 24 are used. We statistically show that correlation length pore‐to‐matrix distribution can be reliably determined for finer than 9 voxels per representative volume this is about 15 3 length. Similar values also valid total porosity, specific surface area, mean curvature, topology pore space. Only...
Chaotic foliations generalize Devaney’s concept of chaos for dynamical systems. The property a foliation to be chaotic is transversal, i.e, depends on the structure leaf space foliation. transversal Cartan modeled manifold. problem investigating reduced corresponding their holonomy pseudogroups local automorphisms manifolds. For wide class, this its global group, which countable discrete subgroup Lie automorphism group an associated simply connected Several types that cannot are indicated....
We discuss the study of topological characteristics random fields that are used for numerical simulation oil and gas reservoirs algorithms (see arXiv:1302.3669), computing such characteristics, which we demonstrate results their applications.
Following Losik's approach to Gelfand's formal geometry, certain characteristic classes for codimension-one foliations coming from the Gelfand-Fuchs cohomology are considered. Sufficient conditions non-triviality in terms of dynamical properties generators holonomy groups found. The Reeb is shown; this contrast with some classical theorems on Godbillon-Vey class, e.g, Mizutani-Morita-Tsuboi Theorem about triviality class almost without not true under consideration. It shown that considered...
We completely explore the system of ODE's which is equivalent to existence a parallel Spin(7)-structure on cone over 7-dimensional 3-Sasakian manifold.The one-dimensional family solutions this constructed.The correspond metrics with holonomy SU (4) generalize Calabi metrics.