Journal of Mathematical Sciences
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The Peano phenomenon for Itô equations
Journal of Mathematical Sciences - Tập 192 - Trang 441-458 - 2013
The weak convergence of the measures generated by the solutions of stochastic
Itô equations with low diffusion is studied, as the diffusion tends to zero. It
is proved that the limiting measure in the presence of the Peano phenomenon for
a relevant ordinary differential equation is concentrated on its extreme
solutions with definite weights. The formulas for their calculation are given.
Convergence of randomly weighted sums of Banach-space-valued random elements under some conditions of uniform integrability
Journal of Mathematical Sciences - Tập 138 - Trang 5450-5459 - 2006
Về Số Lượng Biến Hình Tương Đương Không Tầm Thường Của Các Tập Đa Thức Đóng Dịch bởi AI
Journal of Mathematical Sciences - Tập 223 - Trang 734-738 - 2017
Chúng tôi chỉ ra rằng đối với một tạp Định lượng Riemann kín, thương của nhóm
các biến hình dự án của nó bởi nhóm các đẳng hình chứa ít nhất là hai phần tử,
trừ khi độ đo có chiều cong mặt cắt dương không đổi hoặc mọi biến hình dự án đều
là biến hình đồng tính.
#biến hình dự án #tập đa thức Riemann #độ cong mặt cắt #biến hình đồng tính
Theoretical basis of the method of successive approximations for stationary problems of the mechanics of a viscous fluid with free separation boundaries
Journal of Mathematical Sciences - Tập 28 - Trang 777-782 - 1985
One considers problems with free separation boundaries for flows of a viscous
incompressible fluid, described by a complete system of Navier-Stokes equations.
One presents a scheme for the construction of approximate methods, giving the
possibility to obtain the foundation of energy-type estimates. These schemes are
constructed on the basis of a priori estimates, obtained previously at the proof
o...
Circle Geometries Modeled in Projective Lines over $$ {{\mathbb{R}}^2} $$ -rings
Journal of Mathematical Sciences - Tập 191 - Trang 764-767 - 2013
In this paper, we consider classical circle geometries and connect them with
places of planar Cayley–Klein geometries. There are, in principle, only three
types of $$ {{\mathbb{R}}^2} $$ -ring structures and, thus, only three types of
corresponding circle geometries. Thus, each generalization to non-Euclidean
planes turns out to be just another representation of the classical Euclidean
cases. We b...
On the birational rigidity of some pencils of Del Pezzo surfaces
Journal of Mathematical Sciences - Tập 102 - Trang 3933-3937 - 2000
In this note, we discuss birational properties of some three-dimensional Del
Pezzo fibrations of degree two.
Quasicrystallic Tilings and Projection Method
Journal of Mathematical Sciences - Tập 121 - Trang 2393-2400 - 2004
Basic notions related to quasiperiodic tilings and Delone sets in Eucledean
space are discussed. It is shown how the cut and project method of constructing
them is used to calculate their spectra. Special attention is paid to
self-similar tilings and the way one can obtain one-dimensional substitutional
tilings by the projection scheme. Bibliography: 18 titles.
Modules over integer group rings of locally soluble groups with minimax restriction
Journal of Mathematical Sciences - Tập 187 - Trang 129-137 - 2012
Let ℤ be the ring of integers, and A be a ℤG-module, where A/C A (G) is not a
minimax ℤ-module, C G (A) = 1, and G is a locally soluble group. Let L nm(G) be
the system of all subgroups H ≤ G such that quotient modules A/C A (H) are not
minimax Z-modules. The author studies ℤG-modules A such that L nm(G) satisfies
the minimal condition as an ordered set. It is proved that a locally soluble
group G...
Local limit theorems for functionals in the conditional invariance principle
Journal of Mathematical Sciences - Tập 43 - Trang 2764-2768 - 1988
We prove the strong convergence of distributions of a large class of functionals
of random polygonal paths constructed from independent, identically distributed
variables.
Systems of Functions Orthogonal Over the Domain and Their Application in Boundary-Value Problems of Mathematical Physics
Journal of Mathematical Sciences - - 2018
Tổng số: 12,715
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