In 2D, when Q is a polygonal domain, the singularities of Type (2) disappear because ψ is the scalar curl of u and is such that its vectorial curl is zero.
Do not confuse Francitan with Franco-Provençal, an obsolescent name for Arpitan (see entry in chapter 2) or with Francique (Moselle Franconian) a variety of German spoken in Lorraine.
By the pathside, there are occasional large boulders that shown black crystals the size of a fingernail; these are pyroxene minerals that had time to crystallise out deep within the chamber of liquid rock – or magma – beneath the volcano.
'Time has slown down.' It was like this woman was getting just as slown down as I was, even though she never touched the stuff.
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