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1.
We consider a system of multicolour disordered lattice gas, following closely the (monocolour) introduced by Faggionato and Martinelli(3,4). We study the projection on the monocolour system and we derive an estimate of the closeness between grand canonical and canonical Gibbs measures.
AMS Classification: Primary: 60K35, 82C20, 82C22 相似文献
2.
A one-step synthesis of 5-alkoxypyrrole-3-phosphonates is presented starting from suitable α-cyanomethyl-β-ketophosphonates. The key step in the synthesis involves a one-pot addition and heteroannulation sequence. The zinc perchlorate-catalyzed addition of alcohols to the nitrile carbon of α-cyanomethyl-β-ketophosphonates followed by annulation furnished 5-alkoxypyrrole-3-phosphonates. The addition-annulation process is carried out in the presence of water and 4,5-dihydro-5-oxo-1H-pyrrole-3-phosphonates (pyrrolinones) are obtained in good yields. 相似文献
3.
Chargaff’s second parity rule (CSPR) asserts that the frequencies of short polynucleotide chains are the same as those of
the complementary reversed chains. Up to now, this hypothesis has only been observed empirically and there is currently no
explanation for its presence in DNA strands. Here we argue that CSPR is a probabilistic consequence of the reverse complementarity
between paired strands, because the Gibbs distribution associated with the chemical energy between the bonds satisfies CSPR.
We develop a statistical test to study the validity of CSPR under the Gibbsian assumption and we apply it to a large set of
bacterial genomes taken from the GenBank repository. 相似文献
4.
Journal of Solid State Electrochemistry - A highly selective and stable amperometric biosensor for the determination of the hypoxanthine (Hx) molecule was designed in this study. For this purpose,... 相似文献
5.
6.
Ukrainian Mathematical Journal - In connection with the method of construction of lightlike hypersurfaces along spacelike submanifolds, we present a relation between the second fundamental form of... 相似文献
7.
Pierre Collet Servet Martínez Jaime San Martín 《Probability Theory and Related Fields》2000,116(3):303-316
We study the asymptotic behaviour of the transition density of a Brownian motion in ?, killed at ∂?, where ?
c
is a compact non polar set. Our main result concern dimension d = 2, where we show that the transition density p
?
t
(x, y) behaves, for large t, as
u(x)u(y)(t(log t)2)−1 for x, y∈?, where u is the unique positive harmonic function vanishing on (∂?)
r
, such that u(x) ∼ log ∣x∣.
Received: 29 January 1999 / Revised version: 11 May 1999 相似文献
8.
Servet Kutukcu Adnan Tuna Atakan T. Yakut 《应用数学和力学(英文版)》2007,28(6):799-809
Using the idea of Atanassov, we define the notion of intuitionistic Menger spaces as a netural generalizations of Menger spaces due to Menger. We also obtain a new generalized contraction mapping and utilize this contraction mapping to prove the existance theorems of solutions to differential equations in intuitionistic Menger spaces. 相似文献
9.
Pierre Collet Servet Martinez Jaime San Martin 《Transactions of the American Mathematical Society》2006,358(11):5059-5082
We prove that for horn-shaped domains of parabolic type, the ratio of the heat kernel at different fixed points has a limit when the time tends to infinity. We also give an explicit formula for the limit in terms of the harmonic functions.
10.
Servet Martínez Daniel Remenik Jaime San Martín 《Journal of Theoretical Probability》2007,20(3):561-579
We study an approximation of a Markov process associated to the boundary of an infinite rooted tree. This approximation is
constructed by projecting the infinitesimal generator of the original process (defined on the boundary) onto the spaces associated
to the filtration spanned by the successive levels of the rooted tree.
S. Martínez and J. San Martín acknowledge the support by Nucleus Millenium Information and Randomness P04-069-F.
D. Remenik current address: Center for Applied Mathematics, Cornell University, 657 Rhodes Hall, Ithaca, NY 14853. The author acknowledges the partial
support by Nucleus Millenium Information and Randomness P01-005 for his work in his undergraduate thesis at Universidad de
Chile. 相似文献