Topological dynamics and compact transformation groups

1971 ◽  
pp. 44-53
Author(s):  
Hsin Chu
Keyword(s):  
Topological Dynamics ◽  
Transformation Groups

R-isomorphisms of Transformation Groups and Prolongations

1973 ◽  
Vol 25 (2) ◽  
pp. 338-344
Author(s):  
Larry King
Keyword(s):  
Transformation Group ◽  
Topological Dynamics ◽  
Transformation Groups ◽  
Almost Periodicity ◽  
Group Isomorphism ◽  
Classification Tool

In [8] the notion of a reparameterizing isomorphism of transformation groups, henceforth called an R-isomorphism, is introduced generalizing Ura's type-2 isomorphism (see [13]). We have shown [8] that an R-isomorphism is weaker than a transformation group isomorphism. For example, although R-isomorphisms preserve pointwise almost periodicity and minimality they do not preserve the existence of slices [7] or almost periodicity. This suggests that R-isomorphisms might be a useful classification tool in topological dynamics.

Almost periodicity and B-equicontinuity in topological dynamics

1969 ◽  
Vol 65 (1) ◽  
pp. 27-32
Author(s):  
Jeong Sheng Yang
Keyword(s):  
Partial Solution ◽  
Topological Dynamics ◽  
Transformation Groups ◽  
Almost Periodicity ◽  
Almost Periodic ◽  
Topological Transformation ◽  
Transition Group

In the previous paper(8), we considered a property of families of functions we termed. ‘B-equicontinuity’. It was shown that B-equicontinuity is stronger than the usual equicontinuity, and is weaker than the equicontinuity defined by Bartle (3). In this paper we consider the concept of B-equicontinuity on topological transformation groups. The net characterization of equicontinuity obtained in (8) is used in discussion. It is proved in (1) that if (X, T, π) is almost periodic, the transition group {πt|t ∈ T} is equicontinuous. One might wonder whether this conclusion can be strengthened to say that {πt|t ∈ T} is B-equicontinuous; we show here by an example that this is not true and a partial solution to this problem is given. Some relations between almost periodicity and B -equicontinuity are also discussed.

scholarly journals Topological Dynamics and the Space of Continuous Mappings

2020 ◽  
Vol 1591 ◽  
pp. 012066
Author(s):  
Mohammed Nokhas Murad Kaki ◽  
Reyadh. D. Ali
Keyword(s):  
Topological Dynamics ◽  
Continuous Mappings

scholarly journals Category Theory for Autonomous and Networked Dynamical Systems

Entropy ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 302 ◽  
Author(s):  
Jean-Charles Delvenne
Keyword(s):  
Dynamical Systems ◽  
Systems Theory ◽  
Ergodic Theory ◽  
Category Theory ◽  
Open Systems ◽  
Topological Dynamics ◽  
Control Problems ◽  
Natural Conditions ◽  
Discussion Paper ◽  
Open Systems Theory

In this discussion paper we argue that category theory may play a useful role in formulating, and perhaps proving, results in ergodic theory, topogical dynamics and open systems theory (control theory). As examples, we show how to characterize Kolmogorov–Sinai, Shannon entropy and topological entropy as the unique functors to the nonnegative reals satisfying some natural conditions. We also provide a purely categorical proof of the existence of the maximal equicontinuous factor in topological dynamics. We then show how to define open systems (that can interact with their environment), interconnect them, and define control problems for them in a unified way.

scholarly journals F-Expansive transformation groups

1979 ◽  
Vol 10 (1) ◽  
pp. 67-85 ◽  
Author(s):  
H.B. Keynes ◽  
M. Sears
Keyword(s):  
Transformation Groups

IMBEDDING OF TRANSFORMATION GROUPS IN AFFINE ONES AND RENORMALIZATION OF TWO-DIMENSIONAL HOMOGENEOUS σ-MODELS

1993 ◽  
Vol 08 (31) ◽  
pp. 2937-2942
Author(s):  
A. V. BRATCHIKOV
Keyword(s):  
Homogeneous Space ◽  
Transformation Group ◽  
Affine Group ◽  
Coupling Constants ◽  
Transformation Groups ◽  
Two Dimensional

The BLZ method for the analysis of renormalizability of the O(N)/O(N − 1) model is extended to the σ-model built on an arbitrary homogeneous space G/H and in arbitrary coordinates. For deriving Ward-Takahashi (WT) identities an imbedding of the transformation group G in an affine group is used. The structure of the renormalized action is found. All the infinities can be absorbed in a coupling constants renormalization and in a renormalization of auxiliary constants which are related to the imbedding.

scholarly journals The covering homotopy extension problem for compact transformation groups

2012 ◽  
Vol 92 (5-6) ◽  
pp. 737-750 ◽  
Author(s):  
S. M. Ageev ◽  
D. Repovš
Keyword(s):  
Transformation Groups ◽  
Extension Problem

scholarly journals Two folk theorems in topological dynamics

2016 ◽  
Vol 2 (2) ◽  
pp. 539-543
Author(s):  
Joseph Auslander
Keyword(s):  
Topological Dynamics ◽  
Folk Theorems
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