New posts in open-problem

Are all $\delta$-hyperbolic groups CAT(0)?

group-theory geometric-group-theory open-problem gromov-hyperbolic-spaces

On progress in mathematics: some long-open problems and long-standing conjectures

reference-request soft-question big-list conjectures open-problem

Minimal counterexamples of the isomorphism problem for integral group rings

reference-request ring-theory finite-groups open-problem group-rings

If $3^x$ and $5^x$ are both integers, is $x$ an integer?

elementary-number-theory open-problem

Fractional oblongs in unit square via the Paulhus packing technique

sequences-and-series combinatorics mathematica packing-problem open-problem

On odd perfect numbers $p^k m^2$ with special prime $p$ satisfying $m^2 - p^k = 2^r t$ - Part II

number-theory inequality conjectures perfect-numbers open-problem

Solving P vs NP with computer

logic computer-science open-problem

Does proving the following statement equate to proving the twin prime conjecture?

prime-numbers open-problem prime-twins

The value of $\sqrt{1-\sqrt{1+\sqrt{1-\sqrt{1+\cdots\sqrt{1-\sqrt{1+1}}}}}}$?

calculus algebra-precalculus problem-solving open-problem

Any book on major (recent) math discovery (results) in an easy understanding way?

reference-request math-history open-problem book-recommendation

Biggest Little Polyhedron

geometry polyhedra open-problem extremal-combinatorics combinatorial-geometry

likely open number theory problem: finite sum of $\zeta(2)$ equal to a square of rationals

number-theory algebraic-number-theory contest-math analytic-number-theory open-problem

Innocent looking open problems in real analysis

calculus real-analysis soft-question big-list open-problem

Are there infinitely many primes of the form $6^{2n}+1$ or only finitely many?

number-theory prime-numbers open-problem

Is $\sum_{r=1}^nrx^{r-1}$ always irreducible (over the integers)? [duplicate]

reference-request polynomials irreducible-polynomials open-problem

Proving that this Game on Polygons Ends

open-problem contest-math

When is $\left\lfloor \frac {7^n}{2^n} \right\rfloor \bmod {2^n} \ne 0\;$?

number-theory diophantine-equations open-problem

Why has the Perfect cuboid problem not been solved yet?

soft-question math-history open-problem

What are possibilities to disprove the Collatz Conjecture?

number-theory open-problem collatz-conjecture

Zhang's theorem and Polignac's conjecture

number-theory prime-numbers conjectures open-problem prime-twins