The Many Voices of a Teacher without Teachers

Méthexis ◽  
2021 ◽  
Vol 33 (1) ◽  
pp. 170-196
Author(s):  
Anna Motta
Keyword(s):  
Correct Interpretation ◽  
Self Consistent ◽  
The Many

Abstract The aim of this paper is to show that an introductory step to the Neoplatonic exegesis of the dialogue was to redefine the figure of Socrates and Socratism, so as to offer aspiring Platonists a correct interpretation of Plato and of the Neoplatonic metaphysical system. In the final stages of a long tradition, Socrates became the teacher par excellence not only of Plato but of all Platonists. In particular, by focusing on the Prolegomena to Platonic philosophy I wish to highlight the fact that, when it comes to teaching, there is no Socrates but Plato’s teacher, a teacher whose many voices – universalised according to well-defined criteria – can also be attributed to Plato. If Plato came to be seen as polyphonic and always self-consistent, this is probably because it was possible to show that Socrates’ hallmark was his ability to remain consistent while expressing many different opinions in the dialogues.

Many-body Green functions in nuclear physics

2017 ◽  
Vol 26 (01n02) ◽  
pp. 1740025 ◽  
Author(s):  
J. Speth ◽  
N. Lyutorovich
Keyword(s):  
Nuclear Physics ◽  
Green Functions ◽  
Many Body ◽  
General Applicability ◽  
Pair Correlations ◽  
Self Consistent ◽  
The Many ◽  
The One ◽  
General Relations ◽  
Three Body

Many-body Green functions are a very efficient formulation of the many-body problem. We review the application of this method to nuclear physics problems. The formulas which can be derived are of general applicability, e.g., in self-consistent as well as in nonself-consistent calculations. With the help of the Landau renormalization, one obtains relations without any approximations. This allows to apply conservation laws which lead to important general relations. We investigate the one-body and two-body Green functions as well as the three-body Green function and discuss their connection to nuclear observables. The generalization to systems with pair correlations are also presented. Numerical examples are compared with experimental data.

A MODEL FOR THE MUTUAL INFLUENCE OF CHEMISORPTION AND MULTILAYER SEGREGATION

1996 ◽  
Vol 03 (02) ◽  
pp. 1253-1257 ◽  
Author(s):  
HUI ZHANG ◽  
SHULIN CONG
Keyword(s):  
Green Function ◽  
Function Method ◽  
Surface Segregation ◽  
Mutual Influence ◽  
Potential Approximation ◽  
Green Function Method ◽  
Self Consistent ◽  
The Green Function ◽  
The Many ◽  
Chemisorption Energy

The Green function method and the chemisorption theory of Einstein and Schrieffer are used to calculate the chemisorption energies of O and CO on the multilayer segregated Ni-Cu disordered binary alloy within the many-coupled self-consistent coherent potential approximation. In general cases, the chemisorption-induced surface segregation can change the surface component and the chemisorption property to varying degrees. When the mutual influence of chemisorption and multilayer segregation is considered, the changes appear slightly mild. The chemisorption energy for O/Ni-Cu (CO/Ni-Cu) depends sensitively on O(CO) coverage θ, and decreases with increasing θ.

Self-Consistent Field Approach to the Many-Electron Problem

1959 ◽  
Vol 115 (4) ◽  
pp. 786-790 ◽  
Author(s):  
H. Ehrenreich ◽  
M. H. Cohen
Keyword(s):  
Field Approach ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field ◽  
The Many

scholarly journals A many-particle approach to the gyro-kinetic theory

2007 ◽  
Vol 73 (5) ◽  
pp. 757-772 ◽  
Author(s):  
ALEXEY MISHCHENKO ◽  
AXEL KÖNIES
Keyword(s):  
Kinetic Equation ◽  
Kinetic Theory ◽  
First Principles ◽  
Conventional Approach ◽  
The Self ◽  
Collision Term ◽  
Lie Transform ◽  
Self Consistent ◽  
The Many ◽  
Particle Approach

AbstractA systematic first-principles approach to the many-particle formulation of the gyro-kinetic theory is suggested. The gyro-kinetic many-particle Hamiltonian is derived using the Lie transform technique. The generalized gyro-kinetic equation is obtained following the Born–Bogoliubov–Green–Kirkwood–Yvon approach. The microscopic expression for the self-consistent potential and the polarization density is obtained. It is shown that new terms appear in the gyro-kinetic polarization that can not be derived in the conventional approach. An expression for the collision term is obtained in the Landau approximation.

scholarly journals TO WHAT EXTENT DOES THE SELF-CONSISTENT MEAN-FIELD EXIST?

2006 ◽  
Vol 15 (05) ◽  
pp. 1141-1148 ◽  
Author(s):  
LU GUO ◽  
FUMIHIKO SAKATA ◽  
EN-GUANG ZHAO ◽  
J. A. MARUHN
Keyword(s):  
Mean Field Theory ◽  
Mean Field ◽  
Energy Difference ◽  
The Self ◽  
Fermion System ◽  
Avoided Crossing ◽  
Self Consistent ◽  
The Mean ◽  
The Many ◽  
First Time

A non-convergent difficulty near level-repulsive region is discussed within the self-consistent mean-field theory. It is shown by numerical and analytic studies that the mean-field is not realized in the many-fermion system when quantum fluctuations coming from two-body residual interaction and quadrupole deformation are larger than an energy difference between two avoided crossing orbits. An analytic condition indicating a limitation of the mean-field concept is derived for the first time.

scholarly journals Fully Self-Consistent RPA Description of the Many Level Pairing Model

2002 ◽  
Vol 296 (2) ◽  
pp. 187-213 ◽  
Author(s):  
Jorge G. Hirsch ◽  
Alejandro Mariano ◽  
Jorge Dukelsky ◽  
Peter Schuck
Keyword(s):  
Self Consistent ◽  
Pairing Model ◽  
The Many

Some thoughts on studying the endangered Modern South Arabian Languages

2017 ◽  
Vol 9 (1-2) ◽  
pp. 9-32
Author(s):  
Miranda J. Morris
Keyword(s):  
Technical Expertise ◽  
Correct Interpretation ◽  
Continuous Speech ◽  
History Of ◽  
Arabic Dialects ◽  
The Many

A brief history of the author’s research on the Modern South Arabian languages (MSAL) in Oman and Yemen is given. Using Baṭḥari, the dangers of eliciting speech forms in isolation rather than recording continuous speech are illustrated. The value of comparing material from other languages of the study area, including Arabic dialects, is demonstrated. Lexis impoverishment is illustrated by discussing the many terms that were formerly used for ‘home’ in the MSAL. A discussion of possible social / cultural reasons for the decline of the most endangered MSAL follows, and the question of whether monolingualism was ever a reality for MSAL speakers is addressed. Examples of specialised vocabulary are given, Baṭḥari fishing terms, which illustrate the technical expertise necessary for the correct interpretation of texts, and how quickly this can be lost. A brief look at how MSAL speakers describe those who speak their languages imperfectly concludes the article.

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