Results 31 to 40 of about 383,888 (152)

Representation of the Solution of Goursat Problem for Second Order Linear Stochastic Hyperbolic Differential Equations

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2021
The article considers second-order system of linear stochastic partial differential equations of hyperbolic type with Goursat boundary conditions. Earlier, in a number of papers, representations of the solution Goursat problem for linear stochastic ...
K.B. Mansimov, R.O. Mastaliyev
doaj   +1 more source

Congruences of the semigroup IO_N (in Ukrainian) [PDF]

open access: yesМатематичні Студії, 2011
We describe congruences of the semigroup IO_N of all order-preserving partial bijections on the set N with the natural order. In particular, we prove that this semigroup contains only one non-Rees congruence.
V. O. Pyekhtyeryev, K. S. Trеtyak
doaj  

An Improved Finite Difference Type Numerical Method for Structural Dynamic Analysis

open access: yesShock and Vibration, 1994
An improved finite difference type numerical method to solve partial differential equations for one-dimensional (1-D) structure is proposed. This numerical scheme is a kind of a single-step, second-order accurate and implicit method.
Sung-Hoon Kim, Youn-sik Park
doaj   +1 more source

On the monoid of cofinite partial isometries of $\qq{N}^n$ with the usual metric

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2019
In this paper we study the structure of the monoid Iℕn ∞ of  cofinite partial isometries of the n-th power of the set of positive integers ℕ with the usual metric for a positive integer n > 2.
Oleg Gutik, Anatolii Savchuk
doaj   +1 more source

Effects of porosity distribution and piezoelectric layers on natural frequencies and unsteady aerodynamic pressure of smart thick porous plates

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2023
In this paper, the effects of porosity distribution and piezoelectric layers on the natural frequencies and flutter aerodynamic pressure of smart thick porous plates in supersonic airflow are studied.
Reza Bahaadini   +3 more
doaj   +1 more source

Effect of even and odd-order aberrations on the accommodation response [PDF]

open access: yesInternational Journal of Ophthalmology, 2017
AIM: To investigate the potential effect that odd and even-order monochromatic aberrations may have on the accommodation response of the human eye. METHODS: Eight healthy subjects with astigmatism below 1 D, best corrected visual acuity 20/20 or better ...
Aikaterini I. Moulakaki   +3 more
doaj   +1 more source

An Analytical Technique, Based on Natural Transform to Solve Fractional-Order Parabolic Equations

open access: yesEntropy, 2021
This research article is dedicated to solving fractional-order parabolic equations using an innovative analytical technique. The Adomian decomposition method is well supported by natural transform to establish closed form solutions for targeted problems.
Ravi P. Agarwal   +4 more
doaj   +1 more source

The Fujiki class and positive degree maps

open access: yesComplex Manifolds, 2015
We show that a map between complex-analytic manifolds, at least one ofwhich is in the Fujiki class, is a biholomorphism under a natural condition on the second cohomologies.
Bharali Gautam   +2 more
doaj   +1 more source

Hydrate Dissociation Model with Time Fractional Derivative

open access: yesGeofluids, 2022
In this paper, we shall investigate fractional partial differential equations with fractional moving boundary condition to study the dissociation of natural gas hydrate under heat injection.
Xinyu Fang   +5 more
doaj   +1 more source

An Application of the Natural Partial Order Relation on the Generalized Semigroup of Transformation With Invariant Set

open access: yesJournal of Mathematics
Let X be a nonempty set and TX be the full transformation semigroup on X. For ∅≠Y⊆X, the semigroup of all transformations that leave Y invariant in TX is denoted as SX,Y=f∈TX:fY⊆Y.
Meiqing Qin, Chaoxin Wang, Chuanwen Yu
doaj   +1 more source

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