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Vol.28 No.2

Paokanta, Siriluk ; Lee, Jung Rye pp.91-102 https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.2.91
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Abstract

In this paper, we introduce Lie bracket Jordan derivations in Banach Jordan algebras. Using the direct method and the fixed point method, we prove the Hyers-Ulam stability of Lie bracket Jordan derivations in complex Banach Jordan algebras.

Kaplan, Elif ; Kutukcu, Servet pp.103-110 https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.2.103
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Abstract

The aim of this paper is to prove a common fixed point theorem for two w-compatible maps in modular A-metric spaces. The main result is also illustrated by an example to demonstrate the degree of validity of our hypothesis.

Anil, Aravind K. ; Prathima, J. ; Kim, Insuk pp.111-117 https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.2.111
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Abstract

In this paper we aim to establish a new class of six definite double integrals in terms of gamma functions. The results are obtained with the help of some definite integrals obtained recently by Kim and Edward equality. The results established in this paper are simple, interesting, easily established and may be useful potentially.

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Abstract

In this paper, we first introduce a new L<sub>p</sub> analytic Fourier-Feynman transform with respect to subordinate Brownian motion (AFFTSB), which extends the Fourier-Feynman transform in the Wiener space. We next examine several relationships involving the L<sub>p</sub>-AFFTSB, the convolution product, and the gradient operator for several types of functionals.

Dey, Dibakar ; Majhi, Pradip pp.143-153 https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.2.143
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Abstract

In this paper, we study some curvature properties of Sasakian 3-manifolds associated to &#x01B5;-tensor. It is proved that if a Sasakian 3-manifold (M, g) satisfies one of the conditions (1) the &#x01B5;-tensor is of Codazzi type, (2) M is &#x01B5;-semisymmetric, (3) M satisfies Q(&#x01B5;, R) = 0, (4) M is projectively &#x01B5;-semisymmetric, (5) M is &#x01B5;-recurrent, then (M, g) is of constant curvature 1. Several consequences are drawn from these results.

Biswas, Tanmay ; Biswas, Chinmay ; Saha, Biswajit pp.155-185 https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.2.155
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Abstract

Orders and types of entire functions have been actively investigated by many authors. In this paper, we investigate some basic properties in connection with sum and product of generalized relative order (&#x1D6FC;, &#x1D6FD;), generalized relative type (&#x1D6FC;, &#x1D6FD;) and generalized relative weak type (&#x1D6FC;, &#x1D6FD;) of entire functions with respect to another entire function where &#x1D6FC;, &#x1D6FD; are continuous non-negative functions on (-&#x221E;, +&#x221E;).

Husain, Hafiz Syed ; Sultana, Mariam pp.187-198 https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.2.187
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Abstract

This work presents an exposition of both the internal structure of derived category of an abelian category D<sup>*</sup>(&#x1D4D0;) and its contribution in solving problems, particularly in algebraic geometry. Calculation of some morphisms will be presented between objects in D<sup>*</sup>(&#x1D4D0;) as elements in appropriate cohomology groups along with their compositions with the help of Yoneda construction under the assumption that the homological dimension of D<sup>*</sup>(&#x1D4D0;) is greater than or equal to 2. These computational settings will then be considered under sheaf cohomological context with a particular case from projective geometry.

Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics