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INDONESIA
MATEMATIKA
Published by Universitas Diponegoro
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Mathematics
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Articles 300 Documents
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PERLUASAN HARNACK DAN SIFAT CAUCHY INTEGRAL HENSTOCK-DUNFORD PADA RUANG EUCLIDE ., Solikhin
MATEMATIKA Vol 16, No 1 (2013): Jurnal Matematika
Publisher : MATEMATIKA

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Abstract

In this paper we study Henstock-Dunford integral on the Euclidean space . We discuss some properties of the integrable. We prove  the Harnack Extension theorems and the Cauchy extension theorems for Henstock-Dunford integral on the Euclidean space .
MODEL DINAMIK PERTUMBUHAN BIOMASSA UDANG WINDU DENGAN FAKTOR MORTALITAS BERGANTUNG WAKTU sulanjari, Sulanjari; sutimin, sutimin
MATEMATIKA Vol 11, No 3 (2008): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

In this paper will be discussed the growth model of shrimp biomass. Biomass is total weight from population. The growth model of shrimp biomass is influenced by the growth model of weight and of population. The growth model of weight, here will be governed and based on Von Bertalanffy’s model. The growth model of number population based on the exponential model and it has been constructed by mortality formula. From the growth model of shrimp biomass will be predicted when accurate harvest time to know the optimal harvest product.  
PROGRAM NONLINEAR FUZZY Khairudin, Khairudin
MATEMATIKA Vol 7, No 1 (2004): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

Nonlinear programming problems have not been developed yet and still to be attention for research just recently. In this paper will be introduced simple fuzzy nonlinear programming problem with any membership nonlinear function, like proposed by Wang and Tang in their paper at 1995 to 1997(Gen and Cheng, 2000). Via defuzzyfication process by Belmann and Zadeh (1970) so that will be improved that fuzzy nonlinear programming problem can be transformed into conventional nonlinear problems.
SIFAT-SIFAT LANJUT NEUTROSOFIK MODUL ., Suryoto; Irawanto, Bambang; Puspita, Nikken Prima
MATEMATIKA Vol 19, No 2 (2016): Jurnal Matematika
Publisher : MATEMATIKA

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Abstract

Neutrosophic module over the ring with unity is an algebraic structure formed by a neutrosophic abelian group by providing actions scalar multiplication on the structure. The elementary properties of neutrosophic module have been looked at, that are intersection dan summand among neutrosophic submodules are neutrosophic submodule again, but it not true for union of neutrosophic submodules. In this article discussed the advanced properties of the neutrosophic module and the algebraic aspects respect to this structure, including neutrosophic quotient module and neutrosophic homomorphism module and can be shown that most of the properties of the classical module still true to the neutrosophic structure, especially with regard to the properties of neutrosophic homomorphism module and the fundamental theorem of neutrosophic homomorphism module.
EKUIVALENSI INTEGRAL BOCHNER DENGAN INTEGRAL MCSHANE KUAT UNTUK FUNGSI DENGAN NILAI DI DALAM RUANG BANACH Sumanto, Y.D
MATEMATIKA Vol 4, No 3 (2001): Jurnal Matematika
Publisher : MATEMATIKA

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Abstract

Integral  McShane  fungsi-fungsi  bernilai  real  ekuivalen  dengan  Integral  Lebesque,  namun  untuk  fungsi  bernilai  vektor  tidak  selalu  demikian.  Dapat  ditunjukkan  bahwa  Integral  Bochner  (Integral  Lebesque  untuk  fungsi  bernilai  vektor)  ekuivalen  dengan  Integral  McShane  kuat.
ANALISIS KESTABILAN MODEL PENYEBARAN VIRUS EBOLA Muntoyimah, Nok; Widowati, Widowati; Sumanto, YD
MATEMATIKA Vol 20, No 2 (2017): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

The Ebola virus disease is caused by the Ebola Virus Deceased (EVD), it belongs to the Fioviridae virus family. Ebola virus can be transmitted through direct contact with infected bodily fluids, organ secretions, blood, and surfaces or objects contaminated by the virus. The spread of the Ebola virus is examined in the form  of mathematical models of SEIR-D (Suspectible, Exposed, Infected, Recovery, Death). The value of the basic reproduction number ( ) was calculated to determine the spread of the Ebola virus. Then, look for disease-free equilibrium and endemic equilibrium and stability analysis of equilibrium points. Numerical simulations performed by entering the initial values and parameter values. From the numerical analysis it is known that the basic reproduction number  so that the stability point of disease-free equilibrium model of the Ebola virus is not stable, whereas the stability of endemic equilibirum point of the model ebola virus is locally asymptotically stable, which means it has spread ebola virus.
PENGARUH SUATU DATA OBSERVASI DALAM MENGESTIMASI PARAMETER MODEL REGRESI Utami, Herni; I, Ruri; abdurrakhman, abdurrakhman
MATEMATIKA Vol 5, No 3 (2002): Jurnal Matematika
Publisher : MATEMATIKA

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Abstract

Observasi yang mempengaruhi model regresi sedemikian hingga elipsoid konfidensi untuk estimasi parameter regresinya menjadi kecil apabila observasi tersebut “dihilangkan” adalah observasi penting.  Sehingga observasi penting tersebut bisa merupakan observasi berpengaruh sesungguhnya atau bisa juga sebagai outlier. Salah satu cara menentukan observasi ke-i penting atau tidak, melihat  elipsoid konfidensi parameter model regresi linear dengan “menghilangkan”  observasi tersebut.
PROBLEM ELIMINASI CUT PADA LOGIKA LBB’Ink Surarso, Bayu
MATEMATIKA Vol 10, No 3 (2007): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

In the present paper we study the problem of  the cut elimination in logics LBB’Ink , i.e. logics obtained from LBB’I by adding a rule called (n®k) rule. It is known that  the cut elimination theorem for LBB’I and its standard extensions can be proved using some modifications of the method used by Gentzen in 1935 to prove the cut elimination theorem for Intuitionistic Logic. We extend the modifications to show that LBB’Ink  enjoy the cut elimination theorem when k=1. On the  other side, we give a counter example sequent to show that the cut elimination theorem does not work for  LBB’Ink  when k>1.
K-ALJABAR ISWATI, ISWATI; suryoto, Suryoto
MATEMATIKA Vol 13, No 1 (2010): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

K-algebra is an algebra structure built on a group so that characters of a group will apply also at K-algebra. If at group there is subgroup and homomorfism group, hence at K-algebra there is K-subalgebra and K-homomorfism. By using characters of group, will be proved characters applied at K-algebra.  
KINERJA ARSITEKTUR INTEROPERABILITAS E-GOVERMENT MULTI PLATFORM Widodo, Aris Puji
MATEMATIKA Vol 19, No 1 (2016): Jurnal Matematika
Publisher : MATEMATIKA

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Abstract

The implementation of e-Government (e-Gov)The implementation of e-Government (e-Gov) to produce a form of relationship Government to Government (G2G). The main factor G2G about interoperability between national and local governments that have a development platform heterogeneity of e-Gov. Interoperability happens is done by creating a new architecture that has the function so that the E-Gov existing ones can communicate with each other. E-Gov Indonesia still developed separately between the central (national) and regional (province, district) or between agencies, so interoperability is happening yet fully able to walk properly. This Paper is focused on making application interoperability architecture of the E-Gov Indonesia as case studies in order to model the heterogeneous platform interoperability scheme. Architecture developed using the approach to Services Oriented Architecture (SOA) in the form of services layer to perform interoperability between heterogeneous platforms. Performance measurement is done by measuring the length of time the execution of the services contained on this architecture by using varying amounts of data.

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