Adaptive and Multilevel Mixed Finite Element Methods.- Error Analysis of Randomized Time-Stepping Methods for Non-Autonomous Evolution Equations with Time-Irregular Coefficients.- New Stabilized Discretizations for Poroelasticity Equations.- A Class of Staggered Schemes for the Compressible Euler Equations.- An Effective Guided Fireworks Algorithm for Solving UCAV Path Planning Problem .- Cuckoo Search Algorithm for Parameter Identification of Fermentation Process Model.- Optimization of String Rewriting Operations for 3D Fractal Generation with Genetic Algorithms.- Quantifying the Effectiveness of First-Hop Redundancy Protocols in IP Networks.- Derivation of a Coordinate System of Three Laser Triangulation Sensors in a Plane.- Optimisation Techniques in Wildfire Simulations. Test Case Kresna Fire August 2017.- Subtraction of Two 2D Polygons with Some Matching Vertices.- InterCriteria Analysis of Different Variants of ACO Algorithm for Wireless Sensor Network Positioning.- Description of Dynamics of Ellipsoidal Estimates of Reachable Sets of Nonlinear Control Systems with Bilinear Uncertainty.- Evaluation of Serial and Parallel Shared-Memory Distance-1 Graph Coloring Algorithms.- Solving Function Approximation Problems Using the L2-Norm of the Log Ratio as a Metric.- Application of Parallel and Hybrid Metaheuristics for Graph Partitioning Problem.- Monte Carlo Approach for Modeling and Optimization of One-Dimensional Bimetallic Nanostructures.- Factors for Search Methods Scalability.- The Statistic Analysis of Conjunctive Adverbs Used in the First Bulgarian School Books in Mathematics (from the first half of XIX c.).- Index Matrices as a Decision-Making Tool for Job Appointment .- An Intuitionistic Fuzzy Approach to the Hungarian Algorithm.- Spectral Collocation Solutions to a Class of Pseudo-Parabolic Equations..- The Statistical Property in Finite Element Model of Elastic Contact Problems.- A Second Order Time Accurate SUSHI Method for the Time-Fractional Diffusion Equation.- A High Order Numerical Method for Solving Nonlinear Fractional Differential equation with Non-Uniform Meshes.- Identification of the Right-Hand Side of an Equation with a Fractional Power of an Elliptic Operator.- Definite Quadrature Formulae of Order Three Based on Compound Midpoint Rule.- Finite Difference Schemes and Classical Transcendental Functions.- Bounds for the Extreme Zeros of Laguerre Polynomials.- Discrete Fourier Analysis on Lattice Grids.- A Wigner Potential Decomposition in the Signed-particle Monte Carlo Approach.- Impact of the Trap Attributes on the Gate Leakage Mechanisms in a 2D MS-EMC Nanodevice Simulator.- Sensitivity Analysis of an Air Pollution Model by Using Quasi-Monte Carlo Algorithms for Multidimensional Numerical Integration .- Microscopic KMC Modeling of Oxide RRAMs.- Numerical Simulation of the Stiff System of Equations within the Spintronic Model.- Parallel SFF-SANS Study of Structure of Polydispersed Vesicular Systems.- Molecular Dynamic Modeling of Long-Range Effect in Metals eExposed to Nanoclusters.- Classification Studies in Various Areas of Science.- Mathematical Modeling: Interdisciplinary Similarity Studies.- Model-Based Stabilization of a Fermentation Process Using Output Feedback with Discrete Time Delay.- Some Convergence Results of a Multidimensional Finite Volume Scheme for a Semilinear Parabolic Equation with a Time Delay.- STARDEX and ETCCDI Climate Indices based on E-OBS and CARPATCLIM Part One: General Description.- STARDEX and ETCCDI Climate Indices based on E-OBS and CARPATCLIM Part Two: ClimData in Use.- Global Sensitivity Analysis for a Chronic Myelogenous Leukemia Model.- Numerical Analysis of a Pollution and Environment Interaction Model.- Computer Simulation of Heat Exchange through 3D Fabric Layer.- Statistically Significant Comparative Performance Testing of Julia and Fortran Languages in Case of Runge-Kutta Methods.- A Numerical Model For Random Fibre Networks.- Front Fixing Finite Difference Method for Pricing a Corporate Bond with Credit Rating Migration.- Positivity Preserving Numerical Method for Optimal Portfolio in a Power Utility Two-dimensional Regime-Switching Model.- Effect of Ionic Strength on the Electro-Dipping Force.- Accuracy of Different Machine Learning Type Methodologies for EEG classification by diagnosis.- Alternate Overlapping Schwarz Method for Singularly Perturbed Semilinear Convection-Diffusion Problems.- On the Calculation of Electromagnetic Fields in Closed Waveguides with InhomogeneousFilling.- Analysis of Hierarchical Compression Parallel Solver for .- Application of WRF-CMAQ Model System for Analysis of Sulfur and Nitrogen Deposition over Bulgaria .- Digital Approximations for Pseudo-Differential Equations and Error Estimates.- Some Difference Algorithms for Nonlinear Klein-Gordon Equations.