Browsing İktisat / Economics by Subject "Mathematics"

Now showing items 1-2 of 2

Determination of the efficiency of the world railway companies by method of DEA and comparison of their efficiency by Tobit analysis

Kutlar, Aziz; Kabasakal, Ali (SPRINGER, 2013)

This paper attempts to measure the performance of railway companies that produce passenger and freight services around the world. The data covering 10 years from 2000 to 2009 is analyzed first via the data envelopment ...
ON THE MATRIX NEARNESS PROBLEM FOR (SKEW-)SYMMETRIC MATRICES ASSOCIATED WITH THE MATRIX EQUATIONS (A(1)XB(1),..., A(k)XB(k)) = (C-1,...,C-k)

Şimşek, Salih; Sarduvan, Murat; Özdemir, Halim (UNIV MISKOLC INST MATH, 2016)

Suppose that the matrix equations system (A(1)XB(1), ... , A(k)XB(k)) = (C-1,..., C-k) with unknown matrix X is given, where A(i), B-i, and C-i, i = 1, 2,..., k, are known matrices of suitable sizes. The matrix nearness ...