Математика и физика. Mathematics & Physics. 2019 12 (5)
Ресурсы коллекции
-
On Accuracy of Approximation for the Resource Constrained Shortest Path Problem
(Сибирский федеральный университет. Siberian Federal University, 2019-10)The paper we considers the Resource Constrained Shortest Path problem (RCSP). This problem is NP- hard extension of a well-known shortest path problem in the directed graph G = (V;E). In the RCSP problem each arc e from ... -
Hardware Architectures of the QR-Decomposition Based on a Givens Rotation Technique
(Сибирский федеральный университет. Siberian Federal University, 2019-10)The fixed-point hardware architecture of the QR decomposition is constrained by a several issues that leads to decrease of a compute accuracy depending on a matrix size. In this article described the hardware architectures ... -
Elastoplastic Bending of the Console with Transverse Force
(Сибирский федеральный университет. Siberian Federal University, 2019-10)In the article an elastoplastic boundary for the console being bent with transverse force when the point of force is not situated in the centroid of transverse section was built with the use of the conservation laws. In ... -
On a Problem of Cross-Diffusion with Nonlocal Boundary Conditions
(Сибирский федеральный университет. Siberian Federal University, 2019-10)Condition of global existence of solution of a non-linear system of cross-diffusion with non-linear boundary conditions is studied in the paper. Critical exponents of Fujita type and critical exponents of global existence ... -
On Distribution of Sums of Random Variables with Invariant Links and their Modeling
(Сибирский федеральный университет. Siberian Federal University, 2019-10)A general form of distribution of a sum of a finite number of absolutely continuous random variables is obtained, examples of constructing and modeling sequences with averaged links (with invariant links) are considered ... -
Classification of Hyperfunctions of Rank 2 with Respect to Membership in the Maximal Partial Ultraclones
(Сибирский федеральный университет. Siberian Federal University, 2019-10)In this paper, we consider the set of hyperfunctions, which is a subset of the full partial ultraclone of rank 2. For hyperfunctions, the problem of their classification with respect to membership in the the maximal ... -
Local Automorphisms of Nil-triangular Subalgebras of Classical Lie Type Chevalley Algebras
(Сибирский федеральный университет. Siberian Federal University, 2019-10)We study the problem of describing local automorphisms of nil-triangular subalgebra of the Chevalley algebra over an associative commutative ring with identity -
Construction and Analysis of Exact Solution of Oberbeck–Boussinesque Equations
(Сибирский федеральный университет. Siberian Federal University, 2019-10)A unidirectional stationary binary mixture motion in a horizontal channel is under study. New exact solution of the Oberbeck–Boussinesque equations is constructed for description of the mentioned flow. The obtained ... -
Modelling of Electrochemically Switchable Ion Transport in Nanoporous Membranes with Conductive Surface
(Сибирский федеральный университет. Siberian Federal University, 2019-10)The impact of potential applied to the conductive surface of nanoporous membrane on the membrane potential at zero current is investigated theoretically on the basis of two–dimensional Space–charge model. The membrane ... -
Distribution of Small Values of Bohr Almost Periodic Functions with Bounded Spectrum
(Сибирский федеральный университет. Siberian Federal University, 2019-10)For f a nonzero Bohr almost periodic function on R with a bounded spectrum we proved there exist Cf > 0 and integer n > 0 such that for every u > 0 the mean measure of the set f x : jf(x)j < u g is less than Cf u1=n: For ... -
Mathematical Discrete-Time Model of the Heterogeneous Integrated System of Corporate Information Management
(Сибирский федеральный университет. Siberian Federal University, 2019-10)The article considers some problems and peculiarities of the modelling and rational design of heteroge- neous traffic servicing integrated systems. The aim of this paper is to develop the apparatus of modelling for ... -
Difference Equations and Generating Functions for some Lattice Path Problems
(Сибирский федеральный университет. Siberian Federal University, 2019-10)An identity for generating functions is proved in this paper. A novel method to compute the number of restricted lattice paths is developed on the basis of this identity. The method employs a difference equation with ... -
Instability of a Two-layer System with Deformable Interfaces under Laser Beam Heating
(Сибирский федеральный университет. Siberian Federal University, 2019-10)New non-standard problem of thermocapillary convection is studied to analyze the flows arising in a two- layer system under action of an intense thermal exposure on the free boundary by a laser beam. Char- acteristics ... -
Strong Bending of a Beam from a Fibrous Composite, Differently Resistant to Tension and Compression
(Сибирский федеральный университет. Siberian Federal University, 2019-10)For the analysis of bending of a thin rod made of fiber composite, the generalized Euler elastic equation is used, taking into account different resistance of the material to tension and compression, the influence of ...