Citizenship certificate of Isaac Hayman

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Inventory of K.K.S.I. chest, receipted by Alexander Zuntz, with note by Isaac H. Levy

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Call for a meeting of the congregation to elect a trustee in place of Isaac Gomez

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Petition of Isaac Da Silva for money

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Letters to Aaron Levy from Isaac M. Gomez

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Letter from Isaac Seixas to Hayman Levy on proposed marriage of Benjamin Seixas to Zipporah Levy

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Sale of ship "Farmer" to Isaac M. Gomez by Joao Jose da Silva

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Certificate of election of Isaac Moses as trustee

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The local polynomial hull near a degenerate CR singularity: Bishop discs revisited

Let be a smooth real surface in and let be a point at which the tangent plane is a complex line. How does one determine whether or not is locally polynomially convex at such a p-i.e. at a CR singularity? Even when the order of contact of with at p equals 2, no clean characterisation exists; difficulties are posed by parabolic points. Hence, we study non-parabolic CR singularities. We show that the presence or absence of Bishop discs around certain non-parabolic CR singularities is completely determined by a Maslov-type index. This result subsumes all known facts about Bishop discs around order-two, non-parabolic CR singularities. Sufficient conditions for Bishop discs have earlier been investigated at CR singularities having high order of contact with . These results relied upon a subharmonicity condition, which fails in many simple cases. Hence, we look beyond potential theory and refine certain ideas going back to Bishop.

Collecção das Leis do Imperio do Brasil de 1843

Parte 1 - Leis

University of Hull ideal assignment process

An 'ideal' assignment submission process map from the University of Hull .

Family: Cladophora Kutzing 1843. identification key. [ Translation from: Flora Slodkowodna Polski 10, 227-263, 1972.]

A description of the algal genus Cladophora from Vol 10 of the ”Freshwater Flora of Poland”. Illustrations are included.