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# Browsing Mathematics by Title

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• (2021-01)
This article discusses the properties of BN1-algebra and the relationship between BN1-algebra and some other algebra. Then, using the properties contained in BN1- algebra and some other algebra, we derive several other ...
• (2013-03-26)
Interval set is a set from an object whose elements consist of intervals. A set of all one-to-one and onto mappings from interval set to the other for all with composition operation which from a semigrup is called interval ...
• (perpustakaan UR, 2021-10)
Hydrazone is a substitution product of stable imine type which has a basic structure (R1-HC=N-NH-R2). The izometine (-HC=N-NH-) group in hydrazones plays a role in their biological activity for the design and development ...
• (perpustakaan UR, 2021-10)
Hydrazone is a class of organic compound with the structure R1R2C=NNH2. Hydrazone have an azomethine group (-NHN=CH-) which is an aldehyde and ketone derivative, in which the oxygen atom is replaced by an =NNH2 group. ...
• (2020-07)
This article discusses the technique of solving ordinary differential equations of second order nonhomogen with right exponential functions in the form of complex exponentials. The solution is obtained through two new ...
• (wahyu sari yeni, 2019-01-14)
This article discusses a new scheme of an iterative method for finding a multiple root of a nonlinear equation with three functions and one first derivative evaluations. Analytically, it is shown that the iterative method ...
• (2016-04-26)
This article discusses a numerical scheme to obtain an estimated solution for a class of nonlinear Fredholm integral equations of the second kind. The process includes discretization, followed by checking the convergence ...
• (perpustakaan UR, 2021-07)
National socio-economic survey in March 2019 showed that the number of poor people in North Sumatra Province was 1,282 million people or 8,83 percent of the total population. The number of poor people and the percentage ...
• (2016-04-27)
This article discusses the numerical method to solve a nonlinear Volterra-Fredholm integral equation using a New Basis function obtained through a set of Block-Pulse functions (BPFs). The Use of the New Basis function ...
• (2016-04-26)
This article discusses solutions of nonlinear Volterra-Fredholm integro-di erential equations using a new representation of triangular functions to transform the original equation into a system of nonlinear equation. The ...
• (Elfitra, 2022-07)
This article discusses the nonnegative integer solution of nonlinear Diophantine equation (8n)x + py = z2 subject to some odd prime number p for n = 1 and n ≥ 2, which is solved by Catalan conjecture, exponential property, ...
• (2016-02-04)
This article studies the necessary and sufficient conditions to determine the solutions of the matrix equation AX=B, which can be either reflexive and anti-reflexive matrix. An n × n complex matrix A is said to be a ...
• (2016-02-04)
This article discusses the solutions of systems of partial differential equations using the homotopy perturbation method and Adomian decomposition method. A numerical example shows that the solution of the partial ...
• (2016-02-04)
This article discusses the solution of system of linear Volterra integral equations in the form of series in Euler polynomials with certain coefficient. The process begins by transforming the system of linear Volterra ...
• (2018-03-07)
This article discusses a solution for the equation 1k + · · · + xk = yn in positive integers x, k, y, n under certain assumptions on x, letting the other variables k, n, y be completely free. This article gives bound for ...
• (2021-05)
This paper discusses an inventory model with deficiencies in triangular fuzzy numbers. The inventory model used is an EOQ model. The optimal solution of the model is achieved using the Kuhn-Tucker conditions. Then, ...
• (2016-02-04)
This article discusses the necessary and sufficient condition for the system of linear equations Ax = b where A is an m × n matrix, with m < n and b is an n × 1 vector to have a solution. The discussion involves determining ...
• (2016-04-27)
An n×n matrix over a commutative ring with identity is clean if it is the sum of an idempotent matrix and unit. This paper discusses necessary and sufficient criteria for 2 × 2 matrix A = [ a b c d ] , where a; b; ...
• (2014-03-25)
This paper discusses the interval estimation of estimator of the shape parameter  of the Pareto distribution in the case where the scale parameter is known. To obtain the estimator of parameter  , some methods can be ...
• (2016-04-26)
This paper is a review of an article proposed by El-Mezouar [4], the methods of moment based method of Cran used to estimate the parameters of the Weibull distribution three parameters where the location parameters is ...