List of unsolved problems in mathematics This article reiterates the Millennium Prize list of unsolved problems in mathematics as of October 2014, and lists further unsolved problems in algebra, additive and algebraic number theories, analys...
 A New Hope for a Perplexing Mathematical Proof Three years ago, a solitary mathematician released an impenetrable proof of the famous abc conjecture. At a recent conference dedicated to the work, optimism mixed with bafflement.
 The Biggest Mystery In Mathematics: Shinichi Mochizuki And The Impenetrable Proof A Japanese mathematician claims to have solved one of the most important problems in his field. The trouble is, hardly anyone can work out whether he's right. Sometime on the morning of 30 August 201...
 Hilbert's ninth problem - Slideshow
 Wall–Sun–Sun prime - Slideshow
 Hilbert's twenty-first problem - Slideshow
 Deligne conjecture - Slideshow
 Computational problem In theoretical computer science, a computational problem is a mathematical object representing a collection of questions that computers might be able to solve. For example, the problem of factoringis... Computational problem - Wikipedia
 Named probability problems Named probability problems - Wikipedia
 Packing problem Packing problems are a class of optimization problems in mathematics that involve attempting to pack objects together into containers. The goal is to either pack a single container as densely as possi... Packing problem - Wikipedia
 Unsolved problems in mathematics This article reiterates the Millennium Prize list of unsolved problems in mathematics as of October 2014, and lists further unsolved problems in algebra, additive and algebraic number theories, analys...
 A New Hope for a Perplexing Mathematical Proof Three years ago, a solitary mathematician released an impenetrable proof of the famous abc conjecture. At a recent conference dedicated to the work, optimism mixed with bafflement.
 The Biggest Mystery In Mathematics: Shinichi Mochizuki And The Impenetrable Proof A Japanese mathematician claims to have solved one of the most important problems in his field. The trouble is, hardly anyone can work out whether he's right. Sometime on the morning of 30 August 201...
 Circle packing in a square Circle packing in a square is a packing problem in recreational mathematics, where the aim is to pack n unit circles into the smallest possible square; or, equivalently, to arrange n points in a unit ...
 Circle packing In geometry, circle packing is the study of the arrangement of circles (of equal or varying sizes) on a given surface such that no overlapping occurs and so that all circles touch another. The associa... Circle packing - Wikipedia
 Blattner's conjecture In mathematics, Blattner's conjecture or Blattner's formula is a description of the discrete series representations of a general semisimple group G in terms of their restricted representations to a ma...
 N!-conjecture In mathematics, the n! conjecture is the conjecture that the dimension of a certain bi-graded module of diagonal harmonics is n!. It was made by A. M. Garsia and M. Haiman and later proved by M. Haima... N!-conjecture - Wikipedia
 Hurwitz problem
 Znám's problem In number theory, Znám's problem asks which sets of k integers have the property that each integer in the set is a proper divisor of the product of the other integers in the set, plus 1. Znám's proble... Znám's problem - Wikipedia
 Maximum flow problem In optimization theory, maximum flow problems involve finding a feasible flow through a single-source, single-sink flow network that is maximum.The maximum flow problem can be seen as a special case o... Maximum flow problem - Wikipedia
 Millennium Prize Problems The Millennium Prize Problems are seven problems in mathematics that were stated by the Clay Mathematics Institute in 2000. As of October 2014, six of the problems remain unsolved. A correct solution ...
 Knight's tour A knight's tour is a sequence of moves of a knight on a chessboard such that the knight visits every square only once. If the knight ends on a square that is one knight's move from the beginning squar... Knight's tour - Wikipedia
 Hamburger moment problem In mathematics, the Hamburger moment problem, named after Hans Ludwig Hamburger, is formulated as follows: given a sequence { mn : n = 1, 2, 3, ... }, does... Hamburger moment problem - Wikipedia
 Schoenflies problem In mathematics, the Schoenflies problem or Schoenflies theorem, of geometric topology is a sharpening of the Jordan curve theorem by Arthur Schoenflies. For Jordan curves in the plane it is often ref...
 Moment problem In mathematics, a moment problem arises as the result of trying to invert the mapping that takes a measure μ to the sequences of momentsMore generally, one may considerfor an arbitrary sequence o...
 Boundary value problem In mathematics, in the field of differential equations, a boundary value problem is a differential equation together with a set of additional constraints, called the boundary conditions. A solution to... Boundary value problem - Wikipedia
 Postage stamp problem The postage stamp problem is a mathematical riddle that asks what is the smallest postage value which cannot be placed on an envelope, if the latter can hold only a limited number of stamps, and these...
 Squaring the circle Squaring the circle is a problem proposed by ancient geometers. It is the challenge of constructing a square with the same area as a given circle by using only a finite number of steps with compass an... Squaring the circle - Wikipedia
 Initial value problem In mathematics, in the field of differential equations, an initial value problem (also called the Cauchy problem by some authors) is an ordinary differential equation together with a specified value, ...