Abstract: In this paper we deal with equivariant normal form coefficient formulas for cubic ℤ 2-equivariant Bogdanov-Takens singularities. Normal form coefficients play a key role for the bifurcation ...
Abstract: A uniform high-frequency description is presented for vertex (tip) diffraction at the tip of a pyramid, for source and observation points at finite distance from the tip. This provides an ...
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