h-unbounded-densities">view current version</a>.
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<div id="posteriors-with-unbounded-densities" class="section level2">
<h2 number="20.4"><span class="header-section-number">20.4</span> Posteriors with Unbounded Densities</h2>
<p>In some cases, the posterior density grows without bounds as
parameters approach certain poles or boundaries. In such, there
are no posterior modes and numerical stability issues can arise as
sampled parameters approach constraint boundaries.</p>
<div id="mixture-models-with-