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41.
Ng YF Meillon JC Ryan T Dominey AP Davis AP Sanders JK 《Angewandte Chemie (International ed. in English)》2001,40(9):1757-1760
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Theo de Jong 《Abhandlungen aus dem Mathematischen Seminar der Universit?t Hamburg》1999,69(1):271-281
In this paper we give explicit equations for quasi-determinantal rational surface singularities, extending previous results
for determinantal rational surface singularities. 相似文献
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Hamiache axiomatized the Shapley value as the unique solution verifying the inessential game property, continuity and associated consistency. Driessen extended Hamiache’s axiomatization to the enlarged class of efficient, symmetric, and linear values. In this paper, we introduce the notion of row (resp. column)-coalitional matrix in the framework of cooperative game theory. The Shapley value as well as the associated game are represented algebraically by their coalitional matrices called the Shapley standard matrix MSh and the associated transformation matrix Mλ, respectively. We develop a matrix approach for Hamiache’s axiomatization of the Shapley value. The associated consistency for the Shapley value is formulated as the matrix equality MSh = MSh · Mλ. The diagonalization procedure of Mλ and the inessential property for coalitional matrices are fundamental tools to prove the convergence of the sequence of repeated associated games as well as its limit game to be inessential. In addition, a similar matrix approach is applicable to study Driessen’s axiomatization of a certain class of linear values. In summary, it is illustrated that matrix analysis is a new and powerful technique for research in the field of cooperative game theory. 相似文献
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Theo Grundhofer 《Geometriae Dedicata》1986,21(3):291-298
Compact connected projective planes have been investigated extensively in the last 30 years, mostly by studying their automorphism groups. It is our aim here to remove the connectedness assumption in some general results of Salzmann [31] and Hähl [14] on automorphism groups of compact projective planes. We show that the continuous collineations of every compact projective plane form a locally compact transformation group (Theorem 1), and that the continuous collineations fixing a quadrangle in a compact translation plane form a compact group (Corollary to Theorem 3). Furthermore we construct a metric for the topology of a quasifield belonging to a compact projective translation plane, using the modular function of its additive group (Theorem 2). 相似文献
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We show that the Ree-Tits unitals are neither classical nor isomorphic to the polar unitals found in the Coulter-Matthews
planes. To this end, we determine the full automorphism groups of the finite Ree-Tits unitals. 相似文献