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<p>Greetings to Quantum ESPRESSO professionals,</p>
<p>I am interested in output of plotbands.x command in the case of
lsym=.true. while bands.x is executed. It is told in some
tutorials that</p>
<p><font size="-2"><span style="left: 28.1312px; top: 464.245px;
font-size: 19.7172px; font-family: sans-serif; transform:
scaleX(0.799195);"></span><span style="left: 28.1312px; top:
464.245px; font-size: 19.7172px; transform: scaleX(0.799195);">`if
symmetry analysis was performed in the previous step
[bands.x], the output is written to</span><span style="left:
28.1312px; top: 487.898px; font-size: 19.7172px; transform:
scaleX(0.788375);"> several plottable files </span><span
style="left: 211.233px; top: 489.534px; font-size: 19.7172px;
transform: scaleX(0.862626);">prefixbands.plot.</span><span
style="left: 345.801px; top: 489.534px; font-size: 19.7172px;
transform: scaleX(0.862626);">N.M</span><span style="left:
376.856px; top: 487.898px; font-size: 19.7172px; transform:
scaleX(0.778279);">, where</span><span style="left: 446.436px;
top: 487.898px; font-size: 19.7172px;"> N </span><span
style="left: 472.517px; top: 487.898px; font-size: 19.7172px;
transform: scaleX(0.789354);">labels the high-symmetry lines,
</span><span style="left: 28.1312px; top: 511.551px; font-size:
19.7172px;">M </span><span style="left: 55.9819px; top:
511.551px; font-size: 19.7172px; transform: scaleX(0.810164);">labels
irreducible representations'.</span></font></p>
<p><font size="-2"><span style="left: 55.9819px; top: 511.551px;
font-size: 19.7172px; transform: scaleX(0.810164);">Could you
please explain as precisely as possible what does it actually
mean? I know some band theory elements, but not those
concerning group representations and such, so I will be glad
to be pointed at a good text maybe, after reading which I can
deduce the answer myself.<br>
</span></font></p>
<p><font size="-2"><span style="left: 55.9819px; top: 511.551px;
font-size: 19.7172px; transform: scaleX(0.810164);">Thanks in
advance.<br>
</span></font></p>
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