نتایج جستجو برای: if bers

تعداد نتایج: 697157  

2008
ALASTAIR FLETCHER

In this article we prove that for any hyperbolic Riemann surface M of infinite analytic type, the little Bers space Q0(M) is isomorphic to c0. As a consequence of this result, if M is such a Riemann surface, then its asymptotic Teichmüller space AT (M) is bi-Lipschitz equivalent to a bounded open subset of the Banach space l∞/c0. Further, if M and N are two such Riemann surfaces, their asymptot...

2000
Z. M. Xiao B. J. Chen H. Fan

A Zener±Stroh crack is formed by coalescing a dislocation pileup and therefore is a net dislocation loaded crack. In this paper, the interaction between a Zener±Stroch crack and surrounding cylindrical ®bers in a ®ber-reinforced composite material has been investigated. The crack is located in the matrix and near a ®ber, while the in ̄uence of other ®bers on the crack is considered through the t...

2001
Anthony J. Lawrance Gan Ohama

The paper explores the calculation of exact bit errror rates (BERs) for some single-user chaotic-shift-keying (CSK) communications systems, in contrast to approximate Gaussian-based approximations in current use. The conventional signal-to-noiseratio approach is shown to give only lower bounds on the BERs. An analytical Gaussian approach based on exact mean and variance of the decoder function ...

Journal: :Michigan Mathematical Journal 1968

2000
Klaus Thomsen

A structural description is given of the separable C algebras that are contractible in KK theory or E theory Subsequently it is shown that two separable C algebras A and B are KK equivalent if and only if there is a bundle of separable C algebras over which is piecewise trivial with no more than six points of non triviality such that the kernel of each ber map is KK contractible all ber maps ar...

2007
David Dumas Richard P. Kent IV

Let M be a compact manifold with boundary. If M is connected, let XC(M) be the SL2(C)–character variety of M. If not, take XC(M) to be the cartesian product of the character varieties of its components. Throughout, S is a closed connected oriented hyperbolic surface, T(S) its Teichmüller space. By the Uniformization Theorem, T(S) is both the space of marked conformal structures on S and the spa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1379

‏‎for the first time nakayama introduced qf-ring. in 1967 carl. faith and elbert a. walker showed that r is qf-ring if and only if each injective right r-module is projective if and only if each injective left r-modules is projective. in 1987 s.k.jain and s.r.lopez-permouth proved that every ring homomorphic images of r has the property that each cyclic s-module is essentialy embeddable in dire...

Journal: :Journal of Mathematical Inequalities 2020

2003
HIDEKI MIYACHI

This paper gives a proof of the conjectural phenomena on the complex boundary one-dimensional slices: Every rational boundary point is cusp shaped. This paper treats this problem for Bers slices, the Earle slices, and the Maskit slice. In proving this, we also obtain the following result: Every Teichmüller modular transformation acting on a Bers slice can be extended as a quasi-conformal mappin...

2000
Toshikazu Tani Takahiro Ushida Jun Kimura

Objective: We studied sequential waveform changes associated with a progressive conduction block to elucidate the relative vulnerability of slow versus fast conducting ®bers to a focal compression. Methods: In 12 healthy men, orthodromic compound sensory nerve action potentials (SNAPs) of the median nerve were recorded unipolarly at 4 sites over the forearm during a 30 min period of constant, l...

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