On Nonlanding Dynamic Rays of Exponential Maps

نویسنده

  • LASSE REMPE
چکیده

We consider the case of an exponential map Eκ : z 7→ exp(z) + κ for which the singular value κ is accessible from the set of escaping points of Eκ. We show that there are dynamic rays of Eκ which do not land. In particular, there is no analog of Douady’s “pinched disk model” for exponential maps whose singular value belongs to the Julia set. We also prove that the boundary of a Siegel disk U for which the singular value is accessible both from the set of escaping points and from U contains uncountably many indecomposable continua.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Topological Dynamics of Exponential Maps on Their Escaping Sets

For the family of exponential maps Eκ(z) = exp(z)+κ, we prove an analog of Böttcher’s theorem by showing that any two exponential maps Eκ1 and Eκ2 are conjugate on suitable subsets of their escaping sets, and this conjugacy is quasiconformal. Furthermore, we prove that any two attracting and parabolic exponential maps are conjugate on their sets of escaping points; in fact, we construct an anal...

متن کامل

Combinatorics of Bifurcations in Exponential Parameter Space

We give a complete combinatorial description of the bifurcation structure in the space of exponential maps z 7→ exp(z) + κ. This combinatorial structure is the basis for a number of important results about exponential parameter space. These include the fact that every hyperbolic component has connected boundary [RS], a classification of escaping parameters [FRS], and the fact that all dynamic a...

متن کامل

A Landing Theorem for Periodic Rays of Exponential Maps

For the family of exponential maps z 7→ exp(z) + κ, we show the following analog of a theorem of Douady and Hubbard concerning polynomials. Suppose that g is a periodic external ray of an exponential map with nonescaping singular value. Then g lands at a repelling or parabolic periodic point. We also show that there are periodic external rays landing at all periodic points of such an exponentia...

متن کامل

Repelling periodic points and landing of rays for post-singularly bounded exponential maps

We show that repelling periodic points are landing points of periodic rays for exponential maps whose singular value has bounded orbit. For polynomials with connected Julia sets, this is a celebrated theorem by Douady, for which we present a new proof. In both cases we also show that points in hyperbolic sets are accessible by at least one and at most finitely many rays. For exponentials this a...

متن کامل

Escaping Points and Symbolic Dynamics 4 3 Tails of Dynamic Rays 8 4 Dynamic Rays 14 5 Eventually Horizontal Escape 17 6 Classification of Escaping Points 21 7

We study the dynamics of iterated cosine maps E: z 7→ aez + be−z, with a, b ∈ C \ {0}. We show that the points which converge to ∞ under iteration are organized in the form of rays and, as in the exponential family, every escaping point is either on one of these rays or the landing point of a unique ray. Thus we get a complete classification of the escaping points of the cosine family, confirmi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005