Talk:Bravais lattice

message: I've removed the redirect and started a new article. This needs a bit of more work, please feel free to edit (although I think the mathematical formalism should be kept to a minimum).O. Prytz 22:16, 9 January 2006 (UTC)
thread_title: Deleted redirect

message: The "sub-captions" within the 2D figure are misleading in their use of the ≠ symbol. In 2 and 3 (rect and centred rect) |a1|≠|a2| indicates |a1| is unequal to |a2|. In 1 (oblique) |a1|≠|a2| instead indicates that there is not necessarily equality. 
/toen  — Preceding unsigned comment added by 50.191.182.83 (talk) 19:12, 6 May 2015 (UTC)
thread_title:  Errors in diagrams 

message: This article has one of the most deficient definitions among all mathematics articles.  There are 14 Bravais lattices in what sense?   In other words, what makes two Bravais lattices equivalent?  Without this information,
the article may as well be chicken scratchings.Daqu 15:52, 28 November 2006 (UTC)
replies: text: I believe that wikipedia articles are by definition "works in progress". If you are knowledgeable in this area, perhaps you can pitch in and do the necessary? --Rifleman 82 16:12, 28 November 2006 (UTC)
thread_title: Is anyone planning to DEFINE Bravais lattices???

message: The monoclonic lattices have different symmetry groups depending on whether a and b are equal or not: in the former case the symmetry group contains a reflection permuting the two lattice basis vectors, therefore, there are really six types.  — Preceding unsigned comment added by 83.236.109.227 (talk) 11:37, 16 April 2024 (UTC)
thread_title: Six Bravais types in 2d

message: I've replaced images for Monoclinic lattices from Monoclinic.svg to Monoclinic.png / Monoclinic-base-centered.svg to Monoclinic-base-centered.png. 
Maybe the png version of these are more correct in the description of their angles. -- Anonymous
:I'm an idiot. Images have now been corrected, and will go back to the SVG versions. Thanks for pointing this out. Stannered 14:33, 18 March 2007 (UTC)
thread_title: Monoclinic lattice images

message: `wat are the proceedure to take wen calc the lattice point of an atom .  —Preceding unsigned comment added by 80.78.17.114 (talk) 14:53, 13 April 2009 (UTC)
thread_title:  about calculating lattice point  

message: I know Ashcroft and Mermin use this definition, but really it is not right.    Bravais refers to lattice *types*.   What is defined here is simply a lattice.  —Preceding unsigned comment added by 129.67.66.134 (talk) 20:18, 11 February 2011 (UTC)
thread_title:  incorrect definition 

message: Can someone explain to a physics student, why there are only 14 bravai lattices?
I dont understand what constrains the number of possible lattice types? I have seen pictures that explained to me, why no pentagons or heptagons can fill the 2D space... It must have something to do with that. But then I don't understand why there are face-centered or body-centered lattice types. What is the difference of a sc lattice and a bcc lattice. I could use the sc lattice and 2 atomic basis or not? --85.178.145.181 (talk) 17:33, 11 August 2011 (UTC)
replies: text: Read Ashcroft-Mermin book, it explains this in the Bravais latice chapter. Pentagons are reserved for quasi-crystals. Spiralciric (talk) 13:15, 15 November 2012 (UTC)
thread_title:  why there are only 14 bravais lattices??? 

message: "In zero-dimensional and one-dimensional space, there is only one type of Bravais lattice."
Is it helpful or meaningful to mention zero-dimensional space in this sentence at all? The intended meaning appears to be that the single point is the only possible "lattice" in zero dimensions, but I'm not entirely convinced that that qualifies as a lattice. --SoledadKabocha (talk) 04:12, 24 October 2015 (UTC)
thread_title:  Zero-dimensional space 

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thread_title:  External links modified