نتایج جستجو برای: expansive mapping
تعداد نتایج: 203348 فیلتر نتایج به سال:
This paper gives an algebraic characterization of expansive actions of countable abelian groups on compact abelian groups. This naturally extends the classification of expansive algebraic Zd-actions given by Schmidt using complex varieties. Also included is an application to a natural class of examples arising from unit subgroups of integral domains. 2000 Mathematics Subject Classification: 22D...
Suppose S is a nonwandering shift of finite type (SFT), and T is an expansive automorphism of S. We show T cannot be a strictly sofic almost Markov shift. Also included is an example of D. Fiebig, a reducible SFT with an expansive automorphism which is not SFT.
A major problem in automated theorem proving is search control. Fully expanded proofs are generally built from a large number of relatively low-level inference steps, with the result that searching the space of possible proofs at this level is very expensive. Proof planning is a technique by which common proof techniques are encoded as schemas, which we call methods. Proofs built using methods ...
This qualitative study aimed at exploring the causes of writing anxiety from an expansive learning perspec- tive. Given the centrality of writing for both EFL learners and teachers, writing anxiety was explored through a longitudinal study spanning two years with 25 EFL learners and teachers who participated by providing comments, diaries, and documents. The participants were also observe...
Let be an expansive automorphisms of compact connected abelian group X whose dual group ^ X is cyclic w.r.t. (i.e. ^ X is generated by f n : n 2 Zg for some 2 ^ X). Then there exists a canonical group homomorphism from the spacè 1 (Z;Z) of all bounded two-sided sequences of integers onto X such that = , where is the shift on`1 (Z;Z). We prove that there exists a sooc subshift V ` 1 (Z;Z) such t...
Expansive soils are one of the examples of tropical soils. These soils pose problems to civil engineers in general and to geotechnical engineers in particular. They cause damage to structures founded in them because of their potential to react to changes in moisture regime. They undergo severe volume changes corresponding to changes in moisture content. Because of their potential to undergo vol...
The endothelium is an expansive spatially distributed organ.1 Endothelial cells participate in a large number of physiological processes including the control of vasomotor tone, the trafficking of cells and nutrients, the regulation of permeability, and the maintenance of blood fluidity. In addition, the endothelium mediates new blood vessel formation, contributes to the balance of proand antii...
Characterizing the multifaceted contribution of genetic and epigenetic factors to disease phenotypes is a major challenge in human genetics and medicine. We carried out high-resolution genetic, epigenetic, and transcriptomic profiling in three major human immune cell types (CD14+ monocytes, CD16+ neutrophils, and naive CD4+ T cells) from up to 197 individuals. We assess, quantitatively, the rel...
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