Preface



Computability of 1manifolds 
Konrad Burnik and Zvonko Iljazovic



Unsolvability Cores in Classification Problems 
Hermann K.G. Walter and Ulrike Brandt



Representations of measurable sets in computable measure theory 
Klaus Weihrauch and Nazanin TavanaRoshandel



Computable Jordan Decomposition of Linear Continuous Functionals on C[0;1] 
Klaus Weihrauch and Tahereh Jafarikhah



Algorithmic randomness for Doob's martingale convergence theorem in continuous time 
Bjørn KjosHanssen, Paul Kim Long V. Nguyen and Jason Rute



Subcomputable Boundedness Randomness 
Sam Buss, Douglas Cenzer and Jeffrey B. Remmel



Bounded variation and the strength of Helly's selection theorem 
Alexander P. Kreuzer



Effective zerodimensionality for computable metric spaces 
Robert Kenny



Finite choice, convex choice and finding roots 
Stéphane Le Roux and Arno Pauly



Computational Problems in Metric Fixed Point Theory and their Weihrauch Degrees 
Eike Neumann


