Results 31 to 40 of about 391,233 (284)

Fractional View Analysis of Swift–Hohenberg Equations by an Analytical Method and Some Physical Applications

open access: yesFractal and Fractional, 2022
This study investigates the fractional-order Swift–Hohenberg equations using the natural decomposition method with non-singular kernel derivatives. The fractional derivative in the sense of Caputo–Fabrizio is considered.
Salemah A. Almutlak   +4 more
doaj   +1 more source

The natural partial order on an abundant semigroup [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1987
In this paper we will study the properties of a natural partial order which may bedefined on an arbitrary abundant semigroup: in the case of regular semigroups werecapture the order introduced by Nambooripad [24]. For abelian PP rings our order coincides with a relation introduced by Sussman [25], Abian [1, 2] and further studied by Chacron [7 ...
openaire   +1 more source

The natural partial order on a regular semigroup [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1980
It is well-known that on an inverse semigroup S the relation ≦ defined by a ≦ b if and only if aa−1 = ab−1 is a partial order (called the natural partial order) on S and that this relation is closely related to the global structure of S (cf. (1, §7.1), (10)).
openaire   +2 more sources

Lix: An Effective Self-applicable Partial Evaluator for Prolog [PDF]

open access: yes, 2004
This paper presents a self-applicable partial evaluator for a considerable subset of full Prolog. The partial evaluator is shown to achieve non-trivial specialisation and be effectively self-applied.
Stephen-John Craig   +3 more
core   +1 more source

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

THE NATURAL PARTIAL ORDER ON THE SEMIGROUP OF ALL TRANSFORMATIONS OF A SET THAT REFLECT AN EQUIVALENCE RELATION [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2013
AbstractLet ${ \mathcal{T} }_{X} $ be the full transformation semigroup on a set $X$ and $E$ be a nontrivial equivalence relation on $X$. Denote $$\begin{eqnarray*}{T}_{\exists } (X)= \{ f\in { \mathcal{T} }_{X} : \forall x, y\in X, (f(x), f(y))\in E\Rightarrow (x, y)\in E\} ,\end{eqnarray*}$$ so that ${T}_{\exists } (X)$ is a subsemigroup of ...
Sun, Lei, Xin, Xiangjun
openaire   +1 more source

Partial maps with domain and range: extending Schein's representation

open access: yes, 2009
The semigroup of all partial maps on a set under the operation of composition admits a number of operations relating to the domain and range of a partial map. Of particular interest are the operations R and L returning the identity on the domain of a map
Stokes, Tim E., Jackson, Marcel
core   +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  

A survey of partial differential equations in geometric design

open access: yes, 2008
YesComputer aided geometric design is an area where the improvement of surface generation techniques is an everlasting demand since faster and more accurate geometric models are required.
Willis, P.   +3 more
core   +1 more source

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

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