Some Unexpected Connections Between Analysis and Combinatorics (D. Andrica, E.J. Ionascu).- The Hilali Conjecture for Hyperelliptic Spaces (J.F. de Bobadilla, J. Fresnan, V. Munoz, A. Murillo).- Aveiro Discretization Method in Mathematics: A New Discretization Principle (L.P. Castro, H. Fujiwara, M.M. Rodrigues, S. Saitoh, V.K. Tuan).- Variational Inequality Models Arising in the Study of Viscoelastic Materials (O. Chau, D. Goeleven, R. Oujja).- Lucjan Emil Bottcher and his Mathematical Legacy (S. Domoradzki, M. Stawiska).- Spectral Properties of Toeplitz Operators Acting on Gabor Type Reproducing Kernel Hilbert Spaces (H.G. Feichtinger, K. Nowak, M. Pap).- Which Numbers Simplify Your Problem? (P. Giordano).- Approximation Properties of Phillips Operators (N.K. Govil, V. Gupta).- Geometric Patterns in Uniform Distribution of Zeros of the Riemann Zeta Function (M. Hassani).- Fractional Cauchy Problem in Sense of the Complex Hadamard Operators (R.W. Ibrahim).- Studies on Generalized Fractional Operators in a Complex Domain (R.W. Ibrahim).- On Completely Monotonic and Related Functions (S. Koumandos).- Hyers-Ulam Stability of Set-Valued Mappings (J.R. Lee, C. Park, Th.M. Rassias).- On the Generalized Hyers-Ulam Stability in Multi-Banach Spaces Associated to a Jensen-Type Additive Mapping (F. Moradlou, Th. M. Rassias).- Elliptic Problems with Nonhomogeneous Differential Operators and Multiple Solutions (D. Motreanu, P. Wikert).- Isotone Retractions onto the Positive Cone of the Ordered Euclidean Space (A.B. Nemeth, S.Z. Nemeth).- On the Circle Preserving Property of Mobius Transformations (N.Y. Ozgur).- Extended Crystal PDEs (A. Prastaro).- Multiplicative Arithmetic Functions of Several Variables: A Survey (L. Toth).- Sequential Maximality Principles (M. Turinici).- Univalence Conditions and Properties for Some New Integral Operators (N. Ularu, D. Breaz).- On the Study of Hyperbolic Triangles and Circles by Hyperbolic Barycentric Coordinates in Relativistic Hyperbolic Geometry (A.A. Ungar).- Multidimensional Half-Discrete Hilbert-Type Inequalities and Operator Expressions (B. Yang).- On the Extension Problems of Isometric and Nonexpansive Mappings (X. Yang, X. Zhao).