D. G. Prakasha, A. Prakash, M. Nagaraja, P. Veeresha
{"title":"On $(epsilon)$ - Lorentzian para-Sasakian Manifolds","authors":"D. G. Prakasha, A. Prakash, M. Nagaraja, P. Veeresha","doi":"10.52547/ijmsi.17.2.243","DOIUrl":"https://doi.org/10.52547/ijmsi.17.2.243","url":null,"abstract":"","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46772492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.46754/jmsi.2022.06.003
Miftahuddin, Ananda Pratama Sitanggang, N. Mohamed, Maharani A. Bakar
In this study, we used the fluctuating air temperature dataset. The change is caused by data fluctuations, trend, seasonality, cyclicity and irregularities. The generalized additive model (GAM) data approach is used to describe these phenomena. The aim of this research is to find out the factors that affect the air temperature in the Indian Ocean, find a suitable model, and obtain the best model from three approximate methods, namely the Linear Model (LM), the Generalized Linear Model (GLM), and the GAM models, which use a dataset of factors that affect the temperature of the Indian Ocean (close to Aceh region). For the air temperature of α = 0.05, the significant effects are precipitation, relative humidity, sea surface temperature, and the wind speed. The LM, GLM and GAM models are quite feasible because they all meet and pass the classical hypothesis tests, namely the normality test, multicollinearity test, the heteroscedasticity test, and the autocorrelation test. The appropriate model is GAM model based on adaptive smoothers. Compared to the LM, GLM and GAM models, GAM model with the adaptive smoothers base gave smallest AIC values of 4552.890 and 2392.396 where modeling was without and with time variable respectively. Therefore, it can be said that the correct model used at air temperature is the GAM model for adaptive smoothers base.
{"title":"MODELLING INDIAN OCEAN AIR TEMPERATURE USING ADDITIVE MODEL","authors":"Miftahuddin, Ananda Pratama Sitanggang, N. Mohamed, Maharani A. Bakar","doi":"10.46754/jmsi.2022.06.003","DOIUrl":"https://doi.org/10.46754/jmsi.2022.06.003","url":null,"abstract":"In this study, we used the fluctuating air temperature dataset. The change is caused by data fluctuations, trend, seasonality, cyclicity and irregularities. The generalized additive model (GAM) data approach is used to describe these phenomena. The aim of this research is to find out the factors that affect the air temperature in the Indian Ocean, find a suitable model, and obtain the best model from three approximate methods, namely the Linear Model (LM), the Generalized Linear Model (GLM), and the GAM models, which use a dataset of factors that affect the temperature of the Indian Ocean (close to Aceh region). For the air temperature of α = 0.05, the significant effects are precipitation, relative humidity, sea surface temperature, and the wind speed. The LM, GLM and GAM models are quite feasible because they all meet and pass the classical hypothesis tests, namely the normality test, multicollinearity test, the heteroscedasticity test, and the autocorrelation test. The appropriate model is GAM model based on adaptive smoothers. Compared to the LM, GLM and GAM models, GAM model with the adaptive smoothers base gave smallest AIC values of 4552.890 and 2392.396 where modeling was without and with time variable respectively. Therefore, it can be said that the correct model used at air temperature is the GAM model for adaptive smoothers base.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"14 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81878563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.46754/jmsi.2022.06.005
R. Hasni, Ibrahim Tarawneh, Mohamad Nazri Husin
With respect to a simple graph G, a vertex labeling ϕ: V(G) > {1,2,...,k) is known as k-labeling. The weight corresponding to an edge xy in G, expressed as wϕ (xy), represents the labels sum of end vertices x and y, given by wϕ (xy) = ϕ(x) + ϕ(y) A vertex k-labeling is expressed as an edge irregular k-labeling with respect to graph G provided that for every two distinct edges e and f, there exists wϕ(e) ≠ wϕ(f) Here, the minimum k where the graph G possesses an edge irregular k-labeling is known as the edge irregularity strength with respect to G, expressed as (G). Here, we examine the edge irregularity strength’s exact value of corona product with respect to two paths Pn and Pm , in which n ≥ 2 and m = 3, 4, 5.
{"title":"A REMARK ON THE EDGE IRREGULARITY STRENGTH OF CORONA PRODUCT OF TWO PATHS","authors":"R. Hasni, Ibrahim Tarawneh, Mohamad Nazri Husin","doi":"10.46754/jmsi.2022.06.005","DOIUrl":"https://doi.org/10.46754/jmsi.2022.06.005","url":null,"abstract":"With respect to a simple graph G, a vertex labeling ϕ: V(G) > {1,2,...,k) is known as k-labeling. The weight corresponding to an edge xy in G, expressed as wϕ (xy), represents the labels sum of end vertices x and y, given by wϕ (xy) = ϕ(x) + ϕ(y) A vertex k-labeling is expressed as an edge irregular k-labeling with respect to graph G provided that for every two distinct edges e and f, there exists wϕ(e) ≠ wϕ(f) Here, the minimum k where the graph G possesses an edge irregular k-labeling is known as the edge irregularity strength with respect to G, expressed as (G). Here, we examine the edge irregularity strength’s exact value of corona product with respect to two paths Pn and Pm , in which n ≥ 2 and m = 3, 4, 5.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"95 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83639258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.46754/jmsi.2022.06.001
Wan Aezwani WAN ABU BAKAR, Che Muhammad Faizul CHE WAIL, M. Man
Wireless estimation bandwidth is used in path selection for a network environment. To access the internet, a typical user shares the same bandwidth that has been provided by the Internet Service Provider (ISP). The scenario worsens when a few of the users access multimedia content on the Internet which requires high bandwidth at the same time. This research could be enhanced in other different network environments, such as wired and mobile phone environments, and represents an analysis of ready bandwidth using a few wireless bandwidth estimation tools, which are WBest, Pathload, IGI MRTG, PRTG and PTR. This paper attempts to design and develop a detection mechanism for wireless estimation bandwidth to estimate an available bandwidththrough several sending of injection traffic packets to the server. In this paper, we measured available bandwidth with WBest. Then we analysed the estimation measurements prior to 2 simulations done on Wireless Mode 11 Mbps 802.11b and Wireless Mode 54 Mbps 802.11g. Three different percentages of packet injection (0%, 25%, 50%) were tested on Wireless Mode 54 Mbps 802.11g. The results accuracy shows that the 50% packet injection performs the least available bandwidth compared to the injection of 0% and 25% of packets.
{"title":"SIMULATION OF WIRELESS ESTIMATION BANDWIDTH FOR NETWORK TECHNOLOGY","authors":"Wan Aezwani WAN ABU BAKAR, Che Muhammad Faizul CHE WAIL, M. Man","doi":"10.46754/jmsi.2022.06.001","DOIUrl":"https://doi.org/10.46754/jmsi.2022.06.001","url":null,"abstract":"Wireless estimation bandwidth is used in path selection for a network environment. To access the internet, a typical user shares the same bandwidth that has been provided by the Internet Service Provider (ISP). The scenario worsens when a few of the users access multimedia content on the Internet which requires high bandwidth at the same time. This research could be enhanced in other different network environments, such as wired and mobile phone environments, and represents an analysis of ready bandwidth using a few wireless bandwidth estimation tools, which are WBest, Pathload, IGI MRTG, PRTG and PTR. This paper attempts to design and develop a detection mechanism for wireless estimation bandwidth to estimate an available bandwidththrough several sending of injection traffic packets to the server. In this paper, we measured available bandwidth with WBest. Then we analysed the estimation measurements prior to 2 simulations done on Wireless Mode 11 Mbps 802.11b and Wireless Mode 54 Mbps 802.11g. Three different percentages of packet injection (0%, 25%, 50%) were tested on Wireless Mode 54 Mbps 802.11g. The results accuracy shows that the 50% packet injection performs the least available bandwidth compared to the injection of 0% and 25% of packets.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"100 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87004465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.46754/jmsi.2022.06.006
S. Najafzadeh, Z. Salleh
The main purpose of this article is to derive the connections between the parabolic starlike and parabolic uniformly convex functions by applying an integral operator on multivalent functions. In addition, a parabolic region in the half-plane is introduced to study the family of parabolic multivalent convex functions of order a and type β.
{"title":"GEOMETRIC PROPERTIES OF MULTIVALENT FUNCTIONS ASSOCIATED WITH PARABOLIC REGIONS","authors":"S. Najafzadeh, Z. Salleh","doi":"10.46754/jmsi.2022.06.006","DOIUrl":"https://doi.org/10.46754/jmsi.2022.06.006","url":null,"abstract":"The main purpose of this article is to derive the connections between the parabolic starlike and parabolic uniformly convex functions by applying an integral operator on multivalent functions. In addition, a parabolic region in the half-plane is introduced to study the family of parabolic multivalent convex functions of order a and type β.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"13 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73946089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.46754/jmsi.2022.06.004
Z. K. Eshkuvatov, Ismail Ahmad Al-Qasem Al-Hadi, S. Bahramov
In this note, we consider the product indefinite integral of the form An automatic quadrature scheme (AQS) is constructed for evaluating Cauchy principal singular integrals in two cases. In the first case c∈ [y,z] ⊂ [-1,1] where -1 < y < z < 1, density function h(t) is approximated by the truncated sum of Chebyshev polynomials of the first kind. Direct substitution does not give solutions so we have used the AQS and reduced problems into algebraic equation with unknown parameters bk which can be found in terms of the singular point with some front conditions. In the second case c ∈ [-1,1], the application of the AQS reduced the number of calculations twice and accuracy is increased. As a theoretical result, the convergence theorem of the proposed method is proven in a Hilbert space. Numerical examples with exact solutions and comparisons with other methods are also given, and they are in the line with theoretical findings.
本文考虑了以下形式的积不定积分:为求两种情况下的柯西主奇异积分，构造了一个自动正交格式(AQS)。在第一种情况下，c∈[y,z]∧[-1,1]其中-1 < y < z < 1，密度函数h(t)近似为第一类切比雪夫多项式的截断和。由于直接代换不能给出解，所以我们利用AQS将问题化简为具有未知参数bk的代数方程，该方程可以用具有一定前条件的奇点来求解。在第二种情况c∈[-1,1]中，AQS的应用使计算次数减少了两倍，提高了精度。理论结果证明了该方法在Hilbert空间中的收敛性定理。给出了精确解的数值算例，并与其他方法进行了比较，结果与理论结果一致。
{"title":"AUTOMATIC QUADRATURE SCHEME FOR CAUCHY TYPE SINGULAR INTEGRAL ON THE VARIABLE INTERVAL","authors":"Z. K. Eshkuvatov, Ismail Ahmad Al-Qasem Al-Hadi, S. Bahramov","doi":"10.46754/jmsi.2022.06.004","DOIUrl":"https://doi.org/10.46754/jmsi.2022.06.004","url":null,"abstract":"In this note, we consider the product indefinite integral of the form \u0000 \u0000An automatic quadrature scheme (AQS) is constructed for evaluating Cauchy principal singular integrals in two cases. In the first case c∈ [y,z] ⊂ [-1,1] where -1 < y < z < 1, density function h(t) is approximated by the truncated sum of Chebyshev polynomials of the first kind. Direct substitution does not give solutions so we have used the AQS and reduced problems into algebraic equation with unknown parameters bk which can be found in terms of the singular point with some front conditions. In the second case c ∈ [-1,1], the application of the AQS reduced the number of calculations twice and accuracy is increased. As a theoretical result, the convergence theorem of the proposed method is proven in a Hilbert space. Numerical examples with exact solutions and comparisons with other methods are also given, and they are in the line with theoretical findings.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"23 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78155237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.46754/jmsi.2022.06.002
Jasniza MOHD JAAFAR, Mustafa Man
Sistem pembayaran elektronik merupakan kaedah pembayaran melalui Internet yang semakin digemari oleh masyarakat Malaysia dan dunia amnya. Terdapat pelbagai saluran pembayaran yang memudahkan urusan pembelian antara penjual dengan pembeli iaitu transaksi tanpa tunai. Keyakinan pengguna semakin menyerlah dengan penambahbaikan keselamatan portal e-dagang dan kesungguhan pihak kewangan seperti institusi kewangan. Objektif penulisan makalah ini adalah untuk menerangkan tentang kelebihan dan kekurangan bagi sistem pembayaran secara elektronik. Kesimpulannya, penggunaan sistem pembayaran secara elektonik ini menjadikan satu perkara yang memudahkan serta lebih selamat yang dipercayai pada masa kini. Pelbagai urus niaga di era COVID-19 pandemik ini telah membudayakan kaedah pembayaran secara elektronik ini.
{"title":"SISTEM PEMBAYARAN ELEKTRONIK TANPA TUNAI: SATU KEPERLUAN DI ERA COVID-19 PANDEMIK","authors":"Jasniza MOHD JAAFAR, Mustafa Man","doi":"10.46754/jmsi.2022.06.002","DOIUrl":"https://doi.org/10.46754/jmsi.2022.06.002","url":null,"abstract":"Sistem pembayaran elektronik merupakan kaedah pembayaran melalui Internet yang semakin digemari oleh masyarakat Malaysia dan dunia amnya. Terdapat pelbagai saluran pembayaran yang memudahkan urusan pembelian antara penjual dengan pembeli iaitu transaksi tanpa tunai. Keyakinan pengguna semakin menyerlah dengan penambahbaikan keselamatan portal e-dagang dan kesungguhan pihak kewangan seperti institusi kewangan. Objektif penulisan makalah ini adalah untuk menerangkan tentang kelebihan dan kekurangan bagi sistem pembayaran secara elektronik. Kesimpulannya, penggunaan sistem pembayaran secara elektonik ini menjadikan satu perkara yang memudahkan serta lebih selamat yang dipercayai pada masa kini. Pelbagai urus niaga di era COVID-19 pandemik ini telah membudayakan kaedah pembayaran secara elektronik ini.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"9 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82566372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
. In this paper we study translation surfaces with the non-degenerate third fundamental form in Lorentz- Minkowski space L 3 . As a result, we classify translation surfaces satisfying an equation in terms of the position vector field and the Laplace operator with respect to the third fundamental form III on the surface.
{"title":"Translation Surfaces of the Third Fundamental Form in Lorentz-Minkowski Space","authors":"B. Senoussi, M. Bekkar","doi":"10.52547/ijmsi.17.1.165","DOIUrl":"https://doi.org/10.52547/ijmsi.17.1.165","url":null,"abstract":". In this paper we study translation surfaces with the non-degenerate third fundamental form in Lorentz- Minkowski space L 3 . As a result, we classify translation surfaces satisfying an equation in terms of the position vector field and the Laplace operator with respect to the third fundamental form III on the surface.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43197566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
. We firstly establish an identity for n time differentiable mappings Then, a new inequality for n times differentiable functions is deduced. Finally, some perturbed Ostrowski type inequalities for functions whose n th derivatives are of bounded variation are obtained.
{"title":"Some Perturbed Inequalities of Ostrowski Type for Functions whose n-th Derivatives Are Bounded","authors":"S. Erden","doi":"10.52547/ijmsi.17.1.57","DOIUrl":"https://doi.org/10.52547/ijmsi.17.1.57","url":null,"abstract":". We firstly establish an identity for n time differentiable mappings Then, a new inequality for n times differentiable functions is deduced. Finally, some perturbed Ostrowski type inequalities for functions whose n th derivatives are of bounded variation are obtained.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41945135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
. In this paper we find all solutions of four kinds of the Diophantine equations x 2 ± V t xy − y 2 ± x = 0 and x 2 ± V t xy − y 2 ± y = 0 , for an odd number t , and, x 2 ± V t xy + y 2 − x = 0 and x 2 ± V t xy + y 2 − y = 0 , for an even number t , where V n is a generalized Lucas number. This paper continues and extends a previous work of Bahramian and Daghigh.
在本文中，我们得到了四类丢番图方程x2±V t xy−y 2±x=0和x2±V t xy−y 1±y=0的所有解，对于奇数t，x 2±V t xy+y 2−x=0和x 2±Vt xy+y2−y=0，对于偶数t，其中Vn是广义Lucas数。本文继续并扩展了Bahramian和Daghigh的先前工作。
{"title":"Diophantine Equations Related with Linear Binary Recurrences","authors":"I. Akkus, E. Kılıç, N. Omur","doi":"10.52547/ijmsi.17.1.11","DOIUrl":"https://doi.org/10.52547/ijmsi.17.1.11","url":null,"abstract":". In this paper we find all solutions of four kinds of the Diophantine equations x 2 ± V t xy − y 2 ± x = 0 and x 2 ± V t xy − y 2 ± y = 0 , for an odd number t , and, x 2 ± V t xy + y 2 − x = 0 and x 2 ± V t xy + y 2 − y = 0 , for an even number t , where V n is a generalized Lucas number. This paper continues and extends a previous work of Bahramian and Daghigh.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46438880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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