- Mnemonic for Integration by Parts formula? - Mathematics Stack Exchange
The Integration by Parts formula may be stated as: $$\\int uv' = uv - \\int u'v $$ I wonder if anyone has a clever mnemonic for the above formula What I often do is to derive it from the Product R
- Calculate the cohomology group of $U(n)$ by spectral sequence.
We have Ep,q2 ≅ Λ[c1,c3] E 2 p, q ≅ Λ [c 1, c 3] By lacunary reasons, this spectral sequence collapses on the second page, and so we deduce H∗(U(2)) ≅ Λ[c1,c3] H ∗ (U (2)) ≅ Λ [c 1, c 3] In general, the spectral sequence for the fiber bundle U(n − 1) → U(n) → S2n−1 U (n 1) → U (n) → S 2 n 1 always collapses on the second page, and you can use induction to prove
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Q A for people studying math at any level and professionals in related fields
- Difference between ≈, ≃, and ≅ - Mathematics Stack Exchange
In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators B
- $\\operatorname{Aut}(\\mathbb Z_n)$ is isomorphic to $U_n$.
This endomorphism ring is simply Zn, since the endomorphism is completely determined by its action on a generator, and a generator can go to any element of Zn Therefore, the automorphism group Aut(Zn) is the group of units in Zn, which is Un = U(Zn)
- Equation of a rectangle - Mathematics Stack Exchange
I need to graph a rectangle on the Cartesian coordinate system Is there an equation for a rectangle? I can't find it anywhere
- The sequence of integers - Mathematics Stack Exchange
Prove that the sequence $\\{1, 11, 111, 1111, \\ldots\\}$ will contain two numbers whose difference is a multiple of $2017$ I have been computing some of the immediate multiples of $2017$ to see how
- How many possible combinations in 8 character password?
I need to calculate the possible combinations for 8 characters password The password must contain at least one of the following: (lower case letters, upper case letters, digits, punctuations, spec
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