An effective method for division of rectangular intervals

This paper focuses on the division of intervals in rectangular form. The particular case where the intervals are in the complex plane is considered. For two rectangular complex intervals $Z_{1}$ and $Z_{2}$ finding the smallest rectangle containing the exact set $\left\{ z_{1}\ast z_{2}:z_{1}\in Z_{...

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Main Authors: Edrees M. Nori Mahmood, Gultekin Soylu
Format: Article
Language:English
Published: AIMS Press 2020-08-01
Series:AIMS Mathematics
Subjects:
Online Access:https://www.aimspress.com/article/10.3934/math.2020409/fulltext.html
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author Edrees M. Nori Mahmood
Gultekin Soylu
author_facet Edrees M. Nori Mahmood
Gultekin Soylu
author_sort Edrees M. Nori Mahmood
collection DOAJ
description This paper focuses on the division of intervals in rectangular form. The particular case where the intervals are in the complex plane is considered. For two rectangular complex intervals $Z_{1}$ and $Z_{2}$ finding the smallest rectangle containing the exact set $\left\{ z_{1}\ast z_{2}:z_{1}\in Z_{1},z_{2}\in Z_{2}\right\} $ of the operation $\ast\in\{+,-,\cdot ,\diagup\}$ is the main objective of complex interval arithmetic. For the operations addition, subtraction and multiplication, the optimal solution can be easily found. In the case of division the solution requires rather complicated calculations. This is due to the fact that space of rectangular intervals is not closed under division. The quotient of two rectangular intervals is an irregular shape in general. This work introduces a new method for the determination of the smallest rectangle containing the result in the case of division. The method obtains the optimal solution with less computational cost compared to the algorithms currently available.
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spelling doaj.art-3d565778c90c4906bcc6796b1ddf42a32022-12-22T00:22:35ZengAIMS PressAIMS Mathematics2473-69882020-08-01566355637210.3934/math.2020409.An effective method for division of rectangular intervalsEdrees M. Nori Mahmood0Gultekin Soylu11 Department of Operations Research and Intelligent Techniques, University of Mosul, Iraq2 Department of Mathematics, Akdeniz University, Antalya, 07058, TurkeyThis paper focuses on the division of intervals in rectangular form. The particular case where the intervals are in the complex plane is considered. For two rectangular complex intervals $Z_{1}$ and $Z_{2}$ finding the smallest rectangle containing the exact set $\left\{ z_{1}\ast z_{2}:z_{1}\in Z_{1},z_{2}\in Z_{2}\right\} $ of the operation $\ast\in\{+,-,\cdot ,\diagup\}$ is the main objective of complex interval arithmetic. For the operations addition, subtraction and multiplication, the optimal solution can be easily found. In the case of division the solution requires rather complicated calculations. This is due to the fact that space of rectangular intervals is not closed under division. The quotient of two rectangular intervals is an irregular shape in general. This work introduces a new method for the determination of the smallest rectangle containing the result in the case of division. The method obtains the optimal solution with less computational cost compared to the algorithms currently available.https://www.aimspress.com/article/10.3934/math.2020409/fulltext.htmlinterval arithmeticinterval divisioncomplex intervalrectangular intervalglobal optimization
spellingShingle Edrees M. Nori Mahmood
Gultekin Soylu
An effective method for division of rectangular intervals
AIMS Mathematics
interval arithmetic
interval division
complex interval
rectangular interval
global optimization
title An effective method for division of rectangular intervals
title_full An effective method for division of rectangular intervals
title_fullStr An effective method for division of rectangular intervals
title_full_unstemmed An effective method for division of rectangular intervals
title_short An effective method for division of rectangular intervals
title_sort effective method for division of rectangular intervals
topic interval arithmetic
interval division
complex interval
rectangular interval
global optimization
url https://www.aimspress.com/article/10.3934/math.2020409/fulltext.html
work_keys_str_mv AT edreesmnorimahmood aneffectivemethodfordivisionofrectangularintervals
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AT edreesmnorimahmood effectivemethodfordivisionofrectangularintervals
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