Afrika Matematika
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Về các bất đẳng thức loại Hermite–Hadamard mới cho các hàm s-đối xứng Dịch bởi AI
Afrika Matematika - - 2021
Trong bài báo này, chúng tôi đã thiết lập một số định nghĩa tích phân mới liên quan đến vế trái của bất đẳng thức Hermite–Hadamard. Bằng cách sử dụng định nghĩa này, chúng tôi đã thu được một số giới hạn mới cho các hàm mà đạo hàm của chúng có giá trị tuyệt đối là s-đối xứng.
#bất đẳng thức Hermite–Hadamard #hàm s-đối xứng #định nghĩa tích phân
Soret and Dofour effects on MHD free convection in a micropolar fluid
Afrika Matematika - Tập 25 - Trang 693-705 - 2013
This paper analyzes the flow and heat and mass transfer characteristics of the free convection on a vertical plate with variable wall temperature and concentration in a micropolar fluid in the presence of Soret and Dufour effects. A uniform magnetic field of magnitude
$$B_{0}$$
is applied normal to the plate. The governing nonlinear partial differential equation...... hiện toàn bộ
Fractional Hermite–Hadamard type integral inequalities for functions whose modulus of the mixed derivatives are co-ordinated $$(log,(\alpha ,m))$$ -preinvex
Afrika Matematika - Tập 32 - Trang 925-940 - 2021
In this paper, the concept of co-ordinated (log, (s, m))-preinvex functions is introduced. Some new fractional Hermite–Hadamard type inequalities based on new integral identity are established.
Near-optimality conditions in stochastic control of linear fully coupled FBSDEs
Afrika Matematika - Tập 27 - Trang 327-343 - 2015
In this paper, we deal with near optimality for stochastic control problems where the controlled system is described by a linear fully coupled forward–backward stochastic differential equation. We assume that the forward diffusion coefficient depends explicitly on the control variable and the control domain is not necessarily convex. We establish necessary as well as sufficient conditions for near...... hiện toàn bộ
On existence and asymptotic behavior of the time-dependent solution of the M/G/1 queueing model with optional deterministic server vacations
Afrika Matematika - Tập 31 - Trang 507-537 - 2019
In this paper, we consider the M/G/1 queueing model with optional deterministic server vacations. Firstly, we convert the system into an abstract Cauchy problem, then we prove well-posedenss of the system by using the operator semigroup methods. Next, we investigate asymptotic behavior of its time-dependent solution by studying spectral properties of the corresponding operator. Therefore, we concl...... hiện toàn bộ
Characterization of rough semiring
Afrika Matematika - Tập 28 - Trang 945-956 - 2017
In this paper, we give a characterization of the rough semiring
$$(T,\Delta ,\nabla )$$
. The order of a rough semiring is also derived. We present the idea of rough homomorphism on the set of all rough sets for the given information system togeth...... hiện toàn bộ
On fuzzy subalgebras of BE-algebras
Afrika Matematika - Tập 22 - Trang 115-127 - 2011
In this paper the notion of fuzzy BE-algebras are introduced. We state and prove some theorems in fuzzy BE-algebras and level subalgebras. Some characterizations of fuzzy subalgebras of BE-algebras are given. Using fuzzy subalgebras, characterizations of Artinian and Noetherian BE-algebras are also established. Finally the notion of fuzzy topological BE-algebras is introduced. We state and prove t...... hiện toàn bộ
Extensions of Vandermonde determinant by computing divided differences
Afrika Matematika - Tập 29 - Trang 73-79 - 2017
As extensions of Vandermonde determinant, we establish a general determinant evaluation formula by means of the Laplace expansion formula. Several interesting determinant identities are consequently derived by computing divided differences.
On Geraghty-Wardowski type contractions and an application
Afrika Matematika - Tập 32 Số 7-8 - Trang 1697-1708 - 2021
Tổng số: 799
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