at) Maximum persistence for the given diagram </span>

<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">try</span><span class="p">:</span>
        <span class="n">lifetimes</span> <span class="o">=</span> <span class="n">Dgm</span><span class="p">[:,</span> <span class="mi">1</span><span class="p">]</span> <span class="o">-</span> <span class="n">Dgm</span><span class="p">[:,</span> <span class="mi">0</span><span class="p">]</span>
        <span class="n">m</span> <span class="o">=</span> 