Error in Landau-Lifshitz Vol 2, equation (2), page 277

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Discussion Overview

The discussion revolves around a potential misprint in equation (2) on page 277 of Landau & Lifshitz Vol 2, specifically regarding the term Dα. Participants are examining the equation's correctness and referencing different editions of the book, which leads to confusion about the actual content of the equation.

Discussion Character

  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants suggest that Dα in equation (2) is a misprint, while others question the existence of this equation in their editions.
  • One participant notes that their copy of the book does not contain equation (2) as described and requests a scan of the equation.
  • Another participant clarifies that they are referencing the fourth edition of the book, which has different equation numbering and page references.
  • One participant believes they derived the equation for Dα correctly and does not see any misprint or error.
  • Participants discuss the chapter and section where the relevant equations can be found, with one providing specific details about the chapter and section titles.
  • Concerns about copyright prevent one participant from posting a scan of the equation, despite another suggesting that it may fall under fair use for educational purposes.

Areas of Agreement / Disagreement

There is no consensus on whether there is a misprint in the equation, as participants reference different editions of the book and express varying interpretations of the material.

Contextual Notes

Participants are working with different editions of the book, leading to discrepancies in page numbers and equation references. The discussion includes unresolved questions about the specific content of the equation in question.

shin1980
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I go on reading the Landau & Lifshitz Vol 2.
I guess that Dα in the equation (2) on p. 277 is a misprint.

Error?: Dα = Eα/√h + gβ Hαβ ⋅⋅⋅ (2)
Correct: ???

Would you correct a misprint ?
 
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shin1980 said:
I go on reading the Landau & Lifshitz Vol 2.
I guess that D_α in the equation (2) on p. 277 is a misprint.

Error?: D_α = E_α/√h + g^β * H_αβ ⋅⋅⋅ (2)
Correct: ???

Would you correct a misprint ?
Eq. (2) on page 277 of my copy of Landau and Lifshitz Vol. 2 The Classical Theory of Fields, Third Revised English Edition 1971 looks nothing like that. Can you post a scan of the equation from your copy?
 
renormalize said:
Eq. (2) on page 277 of my copy of Landau and Lifshitz Vol. 2 The Classical Theory of Fields, Third Revised English Edition 1971 looks nothing like that. Can you post a scan of the equation from your copy?
I'm reading the book whose version is Fourth Revised English Edition 1980.
 
Instead of the page, you could give the name of the chapter ans section.
 
julian said:
I think this is the fourth edition:
Thanks for the link to the 4th edition of The Classical Theory of Fields (first published in 1975, not 1980). The only equations on pg. 277 in that edition are numbered (95.9) & (95.10). There is no eq. (2).
@shin1980 please post your equation of concern here in proper LaTeX or else post a scan of that equation from the book.
 
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In the 4th edition (1975), the relevant page is 257, not 277.

I believe I was able to derive the equation for ##D_{\alpha}## in (2) by following the suggestions in the problem. I don't see any misprint or error here.
 
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martinbn said:
Instead of the page, you could give the name of the chapter ans section.
I get it.
chapter: CHAPTER 10 PARTICLE IN A GRAVITATIONAL FIELD
section: $90. The equations of electrodynamics in the presence of a gravitational field
 
renormalize said:
Thanks for the link to the 4th edition of The Classical Theory of Fields (first published in 1975, not 1980). The only equations on pg. 277 in that edition are numbered (95.9) & (95.10). There is no eq. (2).
@shin1980 please post your equation of concern here in proper LaTeX or else post a scan of that equation from the book.
All right, but I can't post a scan of that equation from the book for a copyright.
In addition, I can't display the LaTeX code for that equation displayed in the forum by right-clicking under Windows on a computer (The cause of the failure is unknown).

So please excuse me for displaying a non-LaTeX code for that equation.

chapter: CHAPTER 10 PARTICLE IN A GRAVITATIONAL FIELD
section: $90. The equations of electrodynamics in the presence of a gravitational field

PROBLEM
Eα = F0α, Bαβ = Fαβ,
Dα = -√g00F0α, Hαβ = √g00Fαβ (1)

Solution:
F0α = g0lgαmFlm, Fαβ = gαlgβmFlm,

Dα = Eα/√h + gβHαβ,
Bαβ = Hαβ/√h + gβEα - gαEβ. (2)

Bα = -1/2√γeαβγBβγ,
Hα = -1/2⋅√γ eαβγHβγ (3)

D = E/√h + H×g, B = H/√h + g×E. (4)
 
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shin1980 said:
All right, but I can't post a scan of that equation from the book for a copyright.
Physics Forums is hosted in the USA, where copyright law allows limited "fair use" of protected materials for, among other reasons, teaching, scholarship and research. Posting a scan here of the equation and surrounding text from the book almost certainly is allowed by fair use.
 
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  • #11
renormalize said:
Physics Forums is hosted in the USA, where copyright law allows limited "fair use" of protected materials for, among other reasons, teaching, scholarship and research. Posting a scan here of the equation and surrounding text from the book almost certainly is allowed by fair use.
Thank you for your advise. I post a scan of that equation from the book.
IMG_1.webp
IMG_2.webp
 

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