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Displaying 3421 – 3440 of 4762

Rapid Emergence of Co-colonization with Community-acquired and Hospital-Acquired Methicillin-Resistant Staphylococcus aureus Strains in the Hospital Setting

E. M. C. D’Agata, G. F. Webb, J. Pressley (2010)

Mathematical Modelling of Natural Phenomena

Background: Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA), a novel strain of MRSA, has recently emerged and rapidly spread in the community. Invasion into the hospital setting with replacement of the hospital-acquired MRSA (HA-MRSA) has also been documented. Co-colonization with both CA-MRSA and HA-MRSA would have important clinical implications given differences in antimicrobial susceptibility profiles and the potential...

Rate of convergence of conditional entropies for some maps of an interval

Krystyna Ziemian (1989)

Studia Mathematica

Rational invariant tori, phase space tunneling, and spectra for non-selfadjoint operators in dimension $2$

Michael Hitrik, Johannes Sjöstrand (2008)

Annales scientifiques de l'École Normale Supérieure

We study spectral asymptotics and resolvent bounds for non-selfadjoint perturbations of selfadjoint $h$ -pseudodifferential operators in dimension 2, assuming that the classical flow of the unperturbed part is completely integrable. Spectral contributions coming from rational invariant Lagrangian tori are analyzed. Estimating the tunnel effect between strongly irrational (Diophantine) and rational tori, we obtain an accurate description of the spectrum in a suitable complex window, provided that the...

Rational Misiurewicz maps for which the Julia set is not the whole sphere

Magnus Aspenberg (2009)

Fundamenta Mathematicae

We show that Misiurewicz maps for which the Julia set is not the whole sphere are Lebesgue density points of hyperbolic maps.

Rational periodic points for degree two polynomial morphisms on projective space

Benjamin Hutz (2010)

Acta Arithmetica

Rational periodic points for quadratic maps

Jung Kyu Canci (2010)

Annales de l’institut Fourier

Let $K$ be a number field. Let $S$ be a finite set of places of $K$ containing all the archimedean ones. Let $R_{S}$ be the ring of $S$ -integers of $K$ . In the present paper we consider endomorphisms of $ℙ_{1}$ of degree $2$ , defined over $K$ , with good reduction outside $S$ . We prove that there exist only finitely many such endomorphisms, up to conjugation by ${PGL}_{2} (R_{S})$ , admitting a periodic point in $ℙ_{1} (K)$ of order $> 3$ . Also, all but finitely many classes with a periodic point in $ℙ_{1} (K)$ of order $3$ are parametrized by an irreducible curve.

Rational solutions of the H3 and Q1 models in the ABS lattice list.

Shi, Ying, Zhang, Da-Jun (2011)

SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]

Rationally connected foliations on surfaces.

Neumann, Sebastian (2009)

Documenta Mathematica

Ratner's property for special flows over irrational rotations under functions of bounded variation. II

Adam Kanigowski (2014)

Colloquium Mathematicae

We consider special flows over the rotation on the circle by an irrational α under roof functions of bounded variation. The roof functions, in the Lebesgue decomposition, are assumed to have a continuous singular part coming from a quasi-similar Cantor set (including the devil's staircase case). Moreover, a finite number of discontinuities is allowed. Assuming that α has bounded partial quotients, we prove that all such flows are weakly mixing and enjoy the weak Ratner property. Moreover, we provide...

Rauzy tilings and bounded remainder sets on the torus.

Zhuravlev, V.G. (2005)

Journal of Mathematical Sciences (New York)

Razumikhin's method in the qualitative theory of processes with delay.

Myshkis, Anatoly D. (1995)

Journal of Applied Mathematics and Stochastic Analysis

Reading along arithmetic progressions

T. Downarowicz (1999)

Colloquium Mathematicae

Given a 0-1 sequence x in which both letters occur with density 1/2, do there exist arbitrarily long arithmetic progressions along which x reads 010101...? We answer the above negatively by showing that a certain regular triadic Toeplitz sequence does not have this property. On the other hand, we prove that if x is a generalized binary Morse sequence then each block can be read in x along some arithmetic progression.

Real analytic convex surfaces with positive topological entropy and rigid body dynamics.

Gabriel P. Paternain (1993)

Manuscripta mathematica

Real and complex transversely symplectic Anosov flows of dimension five

Yong Fang (2004/2005)

Séminaire de théorie spectrale et géométrie

Nous présentons plusieurs résultats de rigidité concernant les flots d’Anosov admettant transversalement des structures symplectiques réelles ou complexes de dimension $5$ .

Real and imaginary parts of polynomial iterates.

Barnes, Julia A., Curry, Clinton P., Schaubroeck, Lisbeth E. (2010)

The New York Journal of Mathematics [electronic only]

Real $C^{k}$ Koebe principle

Weixiao Shen, Michael Todd (2005)