Journal of Fundamental Mathematics and Applications (JFMA)

Journal Information
ISSN / EISSN : 26216019 / 26216035
Current Publisher: Diponegoro University (10.14710)
Total articles ≅ 29
Filter:

Latest articles in this journal

Ari Dwi Hartanto, Sutjijana Sutjijana
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2, pp 81-92; doi:10.14710/jfma.v2i2.41

Abstract:
A Secret sharing scheme is a method for dividing a secret into several partialinformation. The secret can be reconstructed if a certain number of partial information is collected. One of the known secret sharing schemes is the Shamir’s secret sharing scheme. It uses Lagrange interpolation (with one indeterminate) for reconstructing the secret. In this paper, we present a secret sharing scheme using multivariate polynomials with the secret reconstruction process using the multivariate interpolation formula derived by Saniee (2007). The resulted scheme can be considered as a generalization of the Shamir’s secret sharing scheme.
Solikhin Solikhin, Susilo Hariyanto, Y.D. Sumanto, Abdul Aziz
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2, pp 93-100; doi:10.14710/jfma.v2i2.42

The publisher has not yet granted permission to display this abstract.
Abdul Aziz, Y.D. Sumanto, Solikhin Solikhin, Robertus Heri Soelistyo Utomo
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2, pp 76-80; doi:10.14710/jfma.v2i2.37

Abstract:
In this paper, we discuss that in the approachable functions set can be defined a complete norm. Furthermore, we obtained that all of approachable functions set is a Banach Space.
Michael Inuhan, Ch. Rini Indrati
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2, pp 64-69; doi:10.14710/jfma.v2i2.33

Abstract:
In this paper, it will be discussed some fixed point theorems in ultrametric spaces. By using spherically complete properties, it can be shown that there exists a unique fixed point of strictly contractive function. At the end, it will be shown there exists fixed point of strictly contracting on orbits function.
Titi Udjiani Srrm, Titi Udjiani
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2, pp 58-63; doi:10.14710/jfma.v2i2.34

Abstract:
The definition of symmetric element in a ring with unity and equipped with involution can be generalized to generalized symmetric elements. But the properties of symmetric element not automatically can be generalized to generalized symmetric elements. In this paper, we discuss the property of symmetric element which can or cannot be generalized to generalized symmetric elements. Because of at least there is an element of symmetric and generalized symmetric elements which have the generalized Moore Penrose inverse, so method in this paper is by establishing a relationship between symmetric element, generalized symmetric element and generalized Moore Penrose inverse of element.
Rianti Siswi Utami, Danardono Danardono
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2, pp 47-57; doi:10.14710/jfma.v2i2.36

Abstract:
Multiple imputation is one of estimation method used to impute missing observations. This method imputes missing observation several times then it is more possible to get the right estimate than just one time imputation. In this research, the method will be applied to estimate missing observations in covariates of recurrent event data. Some multiple imputation methods will be considered including combination of the event indicator, the event times, the logarithm of event times, and the cumulative baseline hazard. To compare these methods, Monte Carlo simulation will be used based on relative bias and Mean Squared Error (MSE). The recurrent events will be modelled using Cox proportional hazard model. Furthermore, real data application will be presented.
Rizky Muhammad Bagas, Titi Udjiani Srrm, Harjito Harjito, Titi Udjiani
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2, pp 70-75; doi:10.14710/jfma.v2i2.35

The publisher has not yet granted permission to display this abstract.
Rina Reorita, Renny Renny
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2; doi:10.14710/jfma.v2i1.24

The publisher has not yet granted permission to display this abstract.
Panca Putra Pemungkas, Sutrisno Sutrisno, Sunarsih Sunarsih
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2; doi:10.14710/jfma.v2i1.26

The publisher has not yet granted permission to display this abstract.
Noviana Pratiwi, Catur Iswahyudi
Journal of Fundamental Mathematics and Applications (JFMA), Volume 2; doi:10.14710/jfma.v2i1.22

The publisher has not yet granted permission to display this abstract.
Back to Top Top