Articles; Larissa Sbitneva, Remembering Zbigniew Oziewicz's activities in Mexico; Elise Tang, Sky Sjue, Fesseha Mariam and Zhaowen Tang, Accurate geometrical inferences from proton radiography data using the CpRad forward model; Jerzy Kocik, Cauchy polynomials: Traces, symmetric functions, and a raising operator; Louis H. Kauffman, Topology of vortex reconnection; Hanna Makaruk and Robert Owczarek, Slawianowski's theory and topological invariants of manifolds; Rhea Palak Bakshi, A counterexample to the generalisation of Witten's conjecture; Rhea Palak Bakshi, Dionne Ibarra, Sujoy Mukherjee and Jozef H. Przytycki, A note on the Gram determinant of type Mb; Micah Chrisman and Sujoy Mukherjee, Hyperbolic knots and torsion in Khovanov homology; Mieczyslaw K. Dabkowski and Cheyu Wu, Coefficients of Catalan states of lattice crossing I: $\Theta _{A}$-state expansion; Radmila Sazdanovic and Daniel Scofield, Structure of the chromatic polynomial; Robert Owczarek, Adventures with positivity: From computer science to skein algebras; Valentina Harizanov and Keshav Srinivasan, Effective ultrapowers of graphs and other structures; Jennifer Chubb, Valentina Harizanov and Dario Verta, Complexity of properties of computable magmas
