t-align:left;">${\tilde\bold e}_\alpha$</td>
      <td style="text-align:left;"><p><eq><span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mrow><mover accent="true"><mi mathvariant="bold">e</mi><mo>~</mo></mover></mrow><mi>α</mi></msub></mrow><annotation encoding="application/x-tex">{\tilde\bold e}_\alpha</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="strut" style="height:0.6813em;"></span><span class="strut bottom" style="height:0.83