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Author Question: Let 1, 2, be m-forms, be a k-form, and be an l-form on Rn. Which of the following properties of ... (Read 55 times)

Starlight

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Question 1

Let  φ= 2dx+ 5dy, ψ = - dx+ 7dy  and θ = -3 dx + c dy be 1 -forms on R2. Find the real number  c  such that  φ∧ψ = φ∧θ.
◦ 2
◦ -3
◦ 0
◦ 12
◦ 17

Question 2

Let φ1, φ2, φ  be m-forms,  ψ  be a k-form, and σ be an l-form on Rn. Which of the following  properties of the wedge product is not always true?
◦ (a φ)∧ψ = a (φ∧ψ)  for a ∈ R
◦ (φ1 + φ2)∧ψ = φ1∧ψ +  φ2∧ψ
◦ φ∧ψ = - ψ∧φ
◦ (φ∧ψ)∧σ  = φ∧(ψ∧σ)
◦ for every k ≥  1, there exists a zero k -form  such that ψ + 0 = ψ, and 0∧σ = 0.


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Marked as best answer by Starlight on May 27, 2021

jasonq

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Starlight

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Reply 2 on: May 27, 2021
:D TYSM


aliotak

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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