><span class="n">transpose</span><span class="p">(</span><span class="n">A_i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">))</span> <span class="o">+</span> <span class="n">lam</span> <span class="o">*</span> <span class="n">torch</span><span class="o">.</span><span class="n">eye</span><span class="p">(</span><span class="n">A_i</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">0</sp