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211.
Bassan Bruno Gossner Olivier Scarsini Marco Zamir Shmuel 《International Journal of Game Theory》2003,32(1):17-31
We exhibit a general class of interactive decision situations in which all the agents benefit from more information. This class includes as a special case the classical comparison of statistical experiments à la Blackwell.
AMS 2000 Subject Classification:Primary 91A35.The work of Bruno Bassan and Marco Scarsini was partially supported by MIUR-COFIN. The authors express their thanks to Sylvain Sorin for enlightening comments. 相似文献
212.
213.
Lina M. Mateus de Oliveira 《Rendiconti del Circolo Matematico di Palermo》2003,52(2):224-240
IfA is a nest algebra andA
s=A ∩ A* , whereA* is the set of the adjoints of the operators lying inA, then the pair (A, A
s) forms a partial Jordan *-triple. Important tools when investigating the structure of a partial Jordan *-triple are its tripotents.
In particular, given an orthogonal family of tripotents of the partial Jordan *-triple (A, A
s), the nest algebraA splits into a direct sum of subspaces known as the Peirce decomposition relative to that family. In this paper, the Peirce
decomposition relative to an orthogonal family of minimal tripotents is used to investigate the structure of the inner ideals
of (A, A
s), whereA is a nest algebra associated with an atomic nest. A property enjoyed by inner ideals of the partial Jordan *-triple (A, A
s) is presented as the main theorem. This result is then applied in the final part of the paper to provide examples of inner
ideals. A characterization of the minimal tripotents as a certain class of rank one operators is also obtained as a means
to deduce the principal theorem. 相似文献
214.
We axiomatize the inner core in a similar way as the one proposed by Aumann (1985) in order to characterize the NTU value.
Received: March 2002/Revised: March 2003 相似文献
215.
We prove that if $f:X \to Y$ is a surjective,
cohomologically (k - 1)-connected and
proper map between locally compact spaces, then for the cohomological descent
spectral sequence one has $E^{pq}_{2} = 0$ provided $q < pk$. 相似文献
216.
Wolfgang R.?BergmannEmail author Roberto?ContiEmail author 《Annali di Matematica Pura ed Applicata》2003,182(3):271-286
Let H be the extended Cuntz algebra over the Hilbert space H. Since its zero grade part H0 is the C*-inductive limit of B(Hr), we look for some family of representations on an inductive limit of Hr as r. When such construction is shaped according to the structure of H0, von Neumanns notion of a reference sequence of unit vectors for Hilbert infinite tensor products emerges; after a further Rieffel induction step, a class IPR[H] of representations of H arises. For any two such representations, we describe explicitly their associated intertwiners. Any two representations in IPR[H] are either disjoint or unitarily equivalent. Actions of the group by translation on sequences of unit vectors are involved, as well as the ideals of . 相似文献
217.
Dominique de Werra 《Graphs and Combinatorics》2003,19(2):263-278
The theorem of Birkhoff – von Neumann concerns bistochastic matrices (i.e., matrices with nonnegative real entries such that
all row sums and all column sums are equal to one). We consider here real matrices with entries unrestricted in sign and we
extend the notion of permutation matrices (integral bistochastic matrices); some generalizations of the theorem are derived
by using elementary properties of graph theory.
Received: October 10, 2000 Final version received: April 11, 2002 相似文献
218.
In this work we show that the energy associated to the linear three-dimensional magneto-elastic system decays polynomially to zero as time goes to infinity, provided the initial data is smooth enough. 相似文献
219.
Marco?A.?BoschettiEmail author Aristide?Mingozzi 《4OR: A Quarterly Journal of Operations Research》2003,1(2):135-147
This paper is the second of a two part series and describes new lower and upper bounds for a more general version of the Two-Dimensional Finite Bin Packing Problem (2BP) than the one considered in Part I (see Boschetti and Mingozzi 2002). With each item is associated an input parameter specifying if it has a fixed orientation or it can be rotated by
. This problem contains as special cases the oriented and non-oriented 2BP. The new lower bound is based on the one described in Part I for the oriented 2BP. The computational results on the test problems derived from the literature show the effectiveness of the new proposed lower and upper bounds. 相似文献
220.
Helga Fetter Berta Gamboa de Buen Jesús García-Falset 《Journal of Mathematical Analysis and Applications》2003,285(2):444-455
We consider a family of spaces wider than r-UNC spaces and we give some fixed point results in the setting of these spaces. 相似文献