Journal Numerical Algorithms Issue 4/2015 Table of Contents ( 12 Articles ) 01-04-2015 | Original Paper | Issue 4/2015 Accuracy of one step of the Falk-Langemeyer method Josip Matejaš 01-04-2015 | Original Paper | Issue 4/2015 A new nonmonotone line search technique for unconstrained optimization Shuai Huang, Zhong Wan, Xiaohong Chen 01-04-2015 | Original Paper | Issue 4/2015 A numerical study of the Legendre-Galerkin method for the evaluation of the prolate spheroidal wave functions Sebastian Schmutzhard, Tomasz Hrycak, Hans G. Feichtinger 01-04-2015 | Original Paper | Issue 4/2015 Nonmonotone line search methods with variable sample size Nataša Krejić, Nataša Krklec Jerinkić 01-04-2015 | Original Paper | Issue 4/2015 Numerical solution of Volterra integro-differential equations by superimplicit multistep collocation methods Somayyeh Fazeli, Gholamreza Hojjati 01-04-2015 | Original Paper | Issue 4/2015 Estimation of unknown boundary functionsin an inverse heat conduction problem using a mollified marching scheme M. Garshasbi, H. Dastour 01-04-2015 | Original Paper | Issue 4/2015 Adaptive time-stepping for the strong numerical solution of stochastic differential equations Silvana Ilie, Kenneth R. Jackson, Wayne H. Enright 01-04-2015 | Original Paper | Issue 4/2015 The effect of graph partitioning techniques on parallel Block FSAI preconditioning: a computational study Carlo Janna, Nicola Castelletto, Massimiliano Ferronato 01-04-2015 | Original Paper | Issue 4/2015 Decoupled two level finite element methods for the steady natural convection problem Tong Zhang, Xin Zhao, Pengzhan Huang 01-04-2015 | Original Paper | Issue 4/2015 Design of a discrete algebraic robust differentiation FIR filter using an annihilator of the Z-transform; frequency response analysis and parameter tuning Fabien Courreges 01-04-2015 | Original Paper | Issue 4/2015 A non-convex algorithm framework based on DC programming and DCA for matrix completion Juan Geng, Laisheng Wang, Yanfei Wang 01-04-2015 | Original Paper | Issue 4/2015 A novel compact numerical method for solving the two-dimensional non-linear fractional reaction-subdiffusion equation Bo Yu, Xiaoyun Jiang, Huanying Xu