maths.free › Frontiers
Frontiers
The open problems (Riemann, Navier-Stokes, P vs NP) broken into what you need to even read them.
レッスン
Advanced
Navier-Stokes existence and smoothness
Do the equations of fluid flow always have smooth solutions, or can a fluid blow up in finite time?
Advanced
P versus NP
If a solution can be checked quickly, can it always be found quickly?
Advanced
Goldbach's conjecture
Every even number greater than 2 is the sum of two primes.
Core
The Collatz conjecture
Halve it if even, triple-and-add-one if odd: does every start reach 1?
Advanced
The twin prime conjecture
Are there infinitely many primes two apart, 3 and 5, 11 and 13, 101 and 103?
Nobody has solved these. Each page states the problem precisely, translates it into plain language, lists the exact prerequisites from the stages above, breaks it into the parts mathematicians actually work on, and says what is known. The point is not to solve them today; it is to be able to read them.
その他のレッスン
The Millennium Prizes
Open questions in number theory
Solved, and how
これらのレッスンの一部は、オープンな教科書を元にしています: Wikipedia. 各レッスンページに出典とライセンスを記載しています。
ここで使用された記号
どの記号をタップしても、定義、画像、それぞれの文字の意味が表示されます。
よくある質問
Can I actually work on these?
You can understand them, which is the honest first step and what these pages are for. Working on them means the full path through the stages above and then the research literature, but every person who has made progress started by reading the statement.
Why are they unsolved if so many people have tried?
Usually because the existing tools provably cannot work (the barriers in P vs NP), or because the problem mixes two structures mathematics handles separately (additive and multiplicative in Goldbach and Collatz). A solution needs a genuinely new idea.
ソルバーページで入力するか描いてください。すべてのステップと図があり、答えはあなたが求めるまで隠されています。 解く →
その他の分野
+ Arithmetic𝑥 Algebra△ Geometry∿ Trigonometryƒ Precalculusσ Statistics & Probability⊢ Discrete Math & Logic∫ Calculus⊞ Linear Algebraℕ Number Theoryẏ Differential Equations∇ Multivariable Calculusε Real Analysis⋔ Combinatorics & Graph Theory∈ Set Theory & Logic𝔾 Abstract Algebra𝑃 Probability Theory≈ Numerical Methodsℂ Complex Analysis◎ Topologyμ Measure Theory‖·‖ Functional Analysisκ Differential Geometryπ₁ Algebraic Topology→ Category Theory∂ Partial Differential Equations≋ Fluid Dynamics