منابع مشابه
Quinn Tyler Jackson
Although in the realm of artificial language it is possible to construct languages that do not comprise expressions that are at once both ambiguous and semantically legal, some artificial languages, and all natural languages, present ambiguous constructs that are nonetheless semantically legal expressions accepted by the language. We introduce the §-calculus (meta-S), a declarative adaptive par...
متن کاملFlatons and Peccei-quinn Symmetry
We study in detail a supersymmetric Peccei-Quinn model, which has a DFSZ and a KSVZ version. The fields breaking the Peccei-Quinn (PQ) symmetry correspond to flat directions (flaton fields) and have unsuppressed couplings when PQ symmetry is unbroken. The models have interesting particle physics phenomenology. The PQ scale is naturally generated through radiative corrections; also, in the DFSZ ...
متن کاملA Stochastic Jurdjevic--Quinn Theorem
The purpose of this paper is to extend to a ne in the control stochastic di erential systems the well{known result of Jurdjevic{Quinn [2]. This result incorporates a previous result in the stochastic context proved in [1].
متن کاملA Cladist is a systematist who seeks a natural classification: some comments on Quinn (2017)
In response to Quinn (Biol Philos, 2017. 10.1007/s10539-017-9577-z) we identify cladistics to be about natural classifications and their discovery and thereby propose to add an eighth cladistic definition to Quinn's list, namely the systematist who seeks to discover natural classifications, regardless of their affiliation, theoretical or methodological justifications.
متن کاملIs There a Peccei - Quinn Phase Transition ?
The nature of axion cosmology is usually said to depend on whether the Peccei-Quinn (PQ) symmetry breaks before or after inflation. The PQ symmetry itself is believed to be an accident, so there is not necessarily a symmetry during inflation at all. We explore these issues in some simple models, which provide examples of symmetry breaking before and after inflation, or in which there is no symm...
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ژورنال
عنوان ژورنال: The Library
سال: 1898
ISSN: 0024-2160,1744-8581
DOI: 10.1093/library/s1-x.1.91-a