New posts in Open Problems

Foundational results dependent on/equivalent to the continuum hypothesis or its negation?

Conjectures and open problems in representation theory

Is there a known Turing machine which halts if and only if the Collatz conjecture has a counterexample?

PhD dissertations that solve an established open problem

Undecidable easy arithmetical statement

On statistical bases in Banach spaces

Equilaterally triangulated surfaces with prescribed boundary

Current state of the Komlos conjecture on vector balancing

Random N-body problem

Is the fundamental group of any compact hyperbolic 3-manifold embeddable into a p-adic group?