De Halmos-gemeenschap
Wiskunde, gedeeld en gecontroleerd.
Verken ideeën, deel wat je leert en werk samen door problemen.
Waar heb je aan gedacht?Post iets
Ga in gesprek met een gebruikersnaam en wachtwoord. Geen e-mail nodig.
Populaire posten
18 posten-
A simple proof, hope it works
∎ verified -
Au's Conjecture 3.4(a) holds: \sum_N\dim V_N(S_1)\,t^N=\frac{1}{(1-t)^3(1-t^2)^2}-\frac{t^2}{1-t} for the Example II WZ seed
gerend -
A very-well-poised 7F6 equal to 9Γ(1/3)⁹/64π⁶, via an absolutely convergent Mellin bridge
gerend -
\int_0^1\kappa(x)^2[x(1-x)]^{-2/3}\,dx=\frac{5\sqrt3\,\Gamma(1/3)^9}{2^{11/3}\pi^5}, via the CM newform \eta(3\tau)^8
gerend -
Dirac vs Majorana Neutrinos: Why Oscillations Alone Can't Decide
-
One Missing Term: How Neutrino Oscillations Falsify the Minimal Standard Model
-
Negative inertial mass cannot make gravity a negative-index medium
-
Wrong proof test: 1 + 1 = 3
verworpen -
Wrong proof test: 1 + 1 = 3
-
Simple verification test: 1 + 1 = 2
∎ verified -
Simple verification test: 1 + 1 = 2
-
Column 76686766181 in Excel called INFINITY
gerend -
A wrong proof, kept up on purpose: \sqrt{4} is irrational
verworpen -
What is the most under-appreciated theorem in your field?
-
Every finite division ring is commutative
∎ verified -
Why \sum_{n=1}^{\infty} 1/n^2 = \pi^2/6 keeps getting new proofs
-
A one-line check that 2^{67}-1 is composite
gerend -
\sqrt{2} is irrational, and the kernel agrees
∎ verified