Includes bibliographical references.

Recent results on ring constructions for errorcorrecting codes ; Algebras determined by their left and right parts ; The work of Roberto MartinezVilla ; A survey on fat points on a smooth quadric ; Bautista and the development of the representation theory of Artin algebras ; A survey on Nichols algebras ; Approximations by modules of imension zero ; Representations of matched pairs of groupoids and applications to weak Hopf algebras ; On symmetries of quasicrystals ; Frattinitype and Fittingtype subgroups ; Representations of the quantum algebra rm su_q(1,1) and duality of rthogonal polynomials ; Internal bialgebroids, entwining structures and corings ; The _2 Ocneanu quantum groupoid ; Skew Armendariz rings and annihilator ideals of skew polynomial rings ; Quantum symmetric algebras as braided Hopf algebras ; Blowup algebras of ideals of vertex covers of bipartite graphs ; Minimal elements in the poset of tilting modules ; Dynamical twists and quantization ; On the combinatorial rank of Hopf algebras ; A tensor product of projective roups ; The minimum degree of a surface that passes through all the points of a 0dimensional scheme but a point ; Primitive ideals and Jacobson radicals in Hopf Galois extensions ; On the algebraic decomposition of a centralizer algebra of the hyperoctahedral group ; Quantum group global symmetries of quantum chains. States for linear chains with left end open and right end closed ; Onesided Hopf algebras ; BTZ black hole and Jacobi inversion for fundamental domains of infinite volume ; Galois correspondence theorem for Hopf algebra actions ; On twopoint differentiation and its generalization Ricardo Alfaro and Andrei Kelarev ; Ibrahim Assem Flavio U Coelho Marcelo Lanzilotta David Smith and Sonia Trepode ; Edward L Green ; Elena Guardo ; Claus Michael Ringel ; Mitsuhiro Takeuchi ; Yuji Yoshino ; Marcelo Aguiar and Nicolas Andruskiewitsch ; Vyacheslav A Artamonov ; M J Asiain ; N M Atakishiyev and A U Klimyk ; Gabriella Bohm ; R Coquereaux ; Wagner Cortes ; Delia Flores de Chela ; Isidoro Gitler Enrique Reyes and Rafael H Villarreal ; Dieter Happel and Luise Unger ; E Karolinsky A Stolin and V Tarasov ; V K Kharchenko and A Andrade Alvarez ; I Lizasoain ; Lucia Marino ; S Montgomery ; Rosa C Orellana ; Suemi RodriguezRomo ; Suemi RodriguezRomo and Earl J Taft ; Floyd L Williams ; Tadashi Yanai ; Alexander G Zavadskij