148 research outputs found
On a q-difference Painlev\'e III equation: II. Rational solutions
Rational solutions for a -difference analogue of the Painlev\'e III
equation are considered. A Determinant formula of Jacobi-Trudi type for the
solutions is constructed.Comment: Archive version is already official. Published by JNMP at
http://www.sm.luth.se/math/JNMP
ΠΠΎΠ΄Π΅Π»ΠΈ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ ΠΌΠ°ΡΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΎΠ±ΡΡΠ΅Π½ΠΈΡ Π΄Π»Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ Π·Π°Π΄Π°Ρ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ ΠΈ ΠΏΡΠΎΠ³Π½ΠΎΠ·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠ°Π±ΠΎΡΡ ΠΌΠΎΡΡΠΊΠΈΡ ΠΏΠΎΡΡΠΎΠ²
Machine learning techniques have made significant advances and expanded application sphere over the past decade to include problems of port operations. This happened due to the growing amount of data available cargo ports. We review the literature on models and methods of machine learning and their application to optimization of port operations. A special attention is paid to the port planning and development a wide range of topics in port operations, including port planning and development, their safety and security, water and land port operations.ΠΠ° ΠΏΠΎΡΠ»Π΅Π΄Π½Π΅Π΅ Π΄Π΅ΡΡΡΠΈΠ»Π΅ΡΠΈΠ΅ ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎ ΡΠ»ΡΡΡΠΈΠ»ΠΈΡΡ ΠΌΠ΅ΡΠΎΠ΄Ρ ΠΌΠ°ΡΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΎΠ±ΡΡΠ΅Π½ΠΈΡ ΠΈ ΡΠ°ΡΡΠΈΡΠΈΠ»Π°ΡΡ ΡΡΠ΅ΡΠ° ΠΈΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ, ΠΊΠΎΡΠΎΡΠ°Ρ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΠ»Π°ΡΡ ΡΡΠ΄ΠΎΠΌ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
Π·Π°Π΄Π°Ρ, Π²ΠΎΠ·Π½ΠΈΠΊΠ°ΡΡΠΈΡ
Π² Π³ΡΡΠ·ΠΎΠ²ΡΡ
ΠΏΠΎΡΡΠ°Ρ
. ΠΡΠΎ ΡΠ²ΡΠ·Π°Π½ΠΎ Ρ Π½Π°ΠΊΠΎΠΏΠ»Π΅Π½ΠΈΠ΅ΠΌ ΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΈΠΌΠ΅ΡΡΠΈΡ
ΡΡ Π² Π³ΡΡΠ·ΠΎΠ²ΡΡ
ΠΏΠΎΡΡΠ°Ρ
Π±ΠΎΠ»ΡΡΠΈΡ
ΠΎΠ±ΡΠ΅ΠΌΠΎΠ² Π΄Π°Π½Π½ΡΡ
. Π‘ΡΠ°ΡΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π° ΠΎΠ±Π·ΠΎΡΡ Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΡ ΠΏΠΎ ΠΌΠΎΠ΄Π΅Π»ΡΠΌ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌ ΠΌΠ°ΡΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΎΠ±ΡΡΠ΅Π½ΠΈΡ ΠΈ ΠΈΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ ΠΏΠΎΡΡΠΎΠ²ΡΡ
ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ. ΠΡΠ½ΠΎΠ²Π½ΠΎΠ΅ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΡΠ΄Π΅Π»Π΅Π½ΠΎ ΠΏΠ»Π°Π½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΏΠΎΡΡΠΎΠ², ΠΈΡ
Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ ΠΈ ΠΎΡ
ΡΠ°Π½Π΅, Π²ΠΎΠ΄Π½ΡΠΌ ΠΈ ΡΡΡ
ΠΎΠΏΡΡΠ½ΡΠΌ ΠΏΠΎΡΡΠΎΠ²ΡΠΌ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΡΠΌ
Vilna governors (1864-1917): construction of historical myths and reality
The article discusses the mythologization in the Soviet historiography of the image of the pre-revolutionary governor. It is shown that for an objective assessment of this category of officials, it is necessary to reveal their real socio-cultural appearance. A mechanism for such an analysis is proposed using the example of Vilna governors (1864-1917) for key positions (educational level, origin, religion, age, marital status, career).Π ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ ΠΌΠΈΡΠΎΠ»ΠΎΠ³ΠΈΠ·Π°ΡΠΈΡ Π² ΡΠΎΠ²Π΅ΡΡΠΊΠΎΠΉ ΠΈΡΡΠΎΡΠΈΠΎΠ³ΡΠ°ΡΠΈΠΈ ΠΎΠ±ΡΠ°Π·Π° Π΄ΠΎΡΠ΅Π²ΠΎΠ»ΡΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π³ΡΠ±Π΅ΡΠ½Π°ΡΠΎΡΠ°. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π΄Π»Ρ ΠΎΠ±ΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠΉ ΠΎΡΠ΅Π½ΠΊΠΈ ΡΡΠΎΠΉ ΠΊΠ°ΡΠ΅Π³ΠΎΡΠΈΠΈ ΡΠΈΠ½ΠΎΠ²Π½ΠΈΠΊΠΎΠ² Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΡΠ°ΡΠΊΡΡΡΡ ΠΈΡ
ΡΠ΅Π°Π»ΡΠ½ΡΠΉ ΡΠΎΡΠΈΠΎΠΊΡΠ»ΡΡΡΡΠ½ΡΠΉ ΠΎΠ±Π»ΠΈΠΊ. ΠΡΠ΅Π΄Π»Π°Π³Π°Π΅ΡΡΡ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌ ΠΏΠΎΠ΄ΠΎΠ±Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ Π²ΠΈΠ»Π΅Π½ΡΠΊΠΈΡ
Π³ΡΠ±Π΅ΡΠ½Π°ΡΠΎΡΠΎΠ² (1864-1917 Π³Π³.) ΠΏΠΎ ΠΊΠ»ΡΡΠ΅Π²ΡΠΌ ΠΏΠΎΠ·ΠΈΡΠΈΡΠΌ (ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΡΠΉ ΡΡΠΎΠ²Π΅Π½Ρ, ΠΏΡΠΎΠΈΡΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΠ΅, Π²Π΅ΡΠΎΠΈΡΠΏΠΎΠ²Π΅Π΄Π°Π½ΠΈΠ΅, Π²ΠΎΠ·ΡΠ°ΡΡ, ΡΠ΅ΠΌΠ΅ΠΉΠ½ΠΎΠ΅ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅, ΠΊΠ°ΡΡΠ΅ΡΠ°)
Painleve IV and degenerate Gaussian Unitary Ensembles
We consider those Gaussian Unitary Ensembles where the eigenvalues have
prescribed multiplicities, and obtain joint probability density for the
eigenvalues. In the simplest case where there is only one multiple eigenvalue
t, this leads to orthogonal polynomials with the Hermite weight perturbed by a
factor that has a multiple zero at t. We show through a pair of ladder
operators, that the diagonal recurrence coefficients satisfy a particular
Painleve IV equation for any real multiplicity. If the multiplicity is even
they are expressed in terms of the generalized Hermite polynomials, with t as
the independent variable.Comment: 17 page
Determinant Structure of the Rational Solutions for the Painlev\'e IV Equation
Rational solutions for the Painlev\'e IV equation are investigated by Hirota
bilinear formalism. It is shown that the solutions in one hierarchy are
expressed by 3-reduced Schur functions, and those in another two hierarchies by
Casorati determinant of the Hermite polynomials, or by special case of the
Schur polynomials.Comment: 19 pages, Latex, using theorem.st
Rational Solutions of the Painleve' VI Equation
In this paper, we classify all values of the parameters , ,
and of the Painlev\'e VI equation such that there are
rational solutions. We give a formula for them up to the birational canonical
transformations and the symmetries of the Painlev\'e VI equation.Comment: 13 pages, 1 Postscript figure Typos fixe
The Hamiltonian Structure of the Second Painleve Hierarchy
In this paper we study the Hamiltonian structure of the second Painleve
hierarchy, an infinite sequence of nonlinear ordinary differential equations
containing PII as its simplest equation. The n-th element of the hierarchy is a
non linear ODE of order 2n in the independent variable depending on n
parameters denoted by and . We introduce new
canonical coordinates and obtain Hamiltonians for the and
evolutions. We give explicit formulae for these Hamiltonians showing that they
are polynomials in our canonical coordinates
Internal scheme of the body assessment in an experiment with environmental uncertainty
The aim of the work was to analyze the influence of various environmental factors forming environmental uncertainty on the nature of the transformation of the "internal scheme of the body". Materials and methods. For the study, a group of healthy volunteers (n = 90) was selected. The results in this paper are median, 75 and 25 percentiles (Me [UQ / LQ]). The study was conducted in several stages. At the first stage, the criteria for excluding potential participants from the experiment were formed. At the second stage of the study, a video analysis of the main anatomical orientations of the pelvic region in static and dynamic samples was conducted for all participants. Conclusion. In the course of the study, specific patterns of spatial deviations of biomechanical blocks of the pelvic region were established, triggered by changes in the qualitative and quantitative parameters of the external environment. So, in conditions of static equilibrium, coordination is activated with involvement of the anterior and posterior half-rings of the pelvis (frontal biomechanical blocks); in conditions of dynamic equilibrium, diagonal biomechanical blocks of the pelvic region are activated; in conditions of deprivation of visual afferentation, the compensatory reactions of the lateral semirings of the pelvic region (lateral biomechanical blocks) are formed
Adsorption and two-body recombination of atomic hydrogen on He-He mixture films
We present the first systematic measurement of the binding energy of
hydrogen atoms to the surface of saturated He-He mixture films.
is found to decrease almost linearly from 1.14(1) K down to 0.39(1) K, when the
population of the ground surface state of He grows from zero to
cm, yielding the value K cm
for the mean-field parameter of H-He interaction in 2D. The experiments
were carried out with overall He concentrations ranging from 0.1 ppm to 5 %
as well as with commercial and isotopically purified He at temperatures
70...400 mK. Measuring by ESR the rate constants and for
second-order recombination of hydrogen atoms in hyperfine states and we
find the ratio to be independent of the He content and to
grow with temperature.Comment: 4 pages, 4 figures, all zipped in a sigle file. Submitted to Phys.
Rev. Let
Structure and Electron-Transport Properties of Photoresist Implanted by Sb + Ions
Morphology and electron-transport properties in the photoresist-silicon structures implanted by 60 keV antimony in the fluence range 1 Γ 10 15 Γ· 5 Γ 10 16 cm β2 with the ion current density 4 Β΅A/cm 2 have been investigated. Microhardness increases with the increasing fluence. Non-monotonous dependence of microhardness on the depth in the implanted structures was observed. Transition from insulating to the metallic regime of conductivity was not observed
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