منابع مشابه
ON SURFACES OF CLASS Kx
The purpose of this note is to make a comment bearing upon the remarkable results of Radó on the semi-continuity of double integrals in parametric form. The essence of the situation, without at first attempting precision, is this. A continuous surface is of class K\ if and only if it has a representation for which the classical double integral area formula has meaning. (It is understood that th...
متن کاملOn Fundamental Groups of Class VII Surfaces
The purpose of this note is to obtain a restriction on the fundamental groups of nonelliptic compact complex surfaces of class VII in Kodaira’s classification [9]. We recall that these are the compact complex surfaces with first Betti number one and no nonconstant meromorphic functions. This seems to be the class of compact complex surfaces whose structure is least understood. The first and sim...
متن کاملSelf-assembly of class II hydrophobins on polar surfaces.
Hydrophobins are structural proteins produced by filamentous fungi that are amphiphilic and function through self-assembling into structures such as membranes. They have diverse roles in the growth and development of fungi, for example in adhesion to substrates, for reducing surface tension to allow aerial growth, in forming protective coatings on spores and other structures. Hydrophobin membra...
متن کاملSelf-assembly of class II hydrophobins on highly polar surfaces
Hydrophobins, adhesive proteins produced by filamentous fungi, have been described as the most surface active proteins known and show extraordinary properties regarding formation of surfaces. Hydrophobins have roles in the growth and development of the fungi including function in adhesion to surfaces, reducing surface tension for aerial growth and spore hydrophobicity and to aid spreading of ae...
متن کاملComplex Algebraic Surfaces Class 14
Useful proposition. Consider the blow-up of P at n general points, giving exceptional divisors E1, : : : , En. Then the intersection ring on P is given by Z[H;E1; : : : ; En]=H 2 = 1; HEi = 0; Ei Ej = 0; E 2 i = 1: We can understand divisors and sections of divisors in terms of divisors on P with certain multiplicities at the Ej . More precisely: the vector space of sections of aH b1E1 bnEn is ...
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ژورنال
عنوان ژورنال: Bulletin of the American Mathematical Society
سال: 1945
ISSN: 0002-9904
DOI: 10.1090/s0002-9904-1945-08414-6