Search results for "CONNECTION"

Three-dimensional features in burning plasmas

2019

A next major step in the research toward magnetic fusion energy production is to carry out experimental campaigns exploring regimes with relevant amount of fusion power. So far, the theoretical knowledge of the path toward a fusion burning plasma has been acquired mainly by performing numerical studies in 0 or 1-1.5 dimensions. Due to the marked anisotropy of magnetically confined plasmas, however, three-dimensional effects might play a role. In particular, the drastic change in magnetic topology associated with reconnecting modes on selected rational magnetic surfaces [1] may decrease the thermal electron conductivity parallel to the magnetic field lines, with a consequent impact on the el…

Analytic behavior of the QED polarizability function at finite temperature

2012

We revisit the analytical properties of the static quasi-photon polarizability function for an electron gas at finite temperature, in connection with the existence of Friedel oscillations in the potential created by an impurity. In contrast with the zero temperature case, where the polarizability is an analytical function, except for the two branch cuts which are responsible for Friedel oscillations, at finite temperature the corresponding function is not analytical, in spite of becoming continuous everywhere on the complex plane. This effect produces, as a result, the survival of the oscillatory behavior of the potential. We calculate the potential at large distances, and relate the calcul…

"Lato" Tadeusza Rittnera. "Ostatnie dni starej Europy" i nowoczesny teatr uczuć

2021

This is a reassessment of the work of Tadeusz Rittner, a bilingual Polish/German writer and dramatist from Galicia who won much acclaim in the early decades of the last century. This article examines his narrative and dramatic strategies by focusing on his drama Lato (Summer), published in 1913. It is a story about a timid young man who, after hearing from his doctor that he will not live much longer, turns suddenly into a bold and shameless seducer. This could be the stuff of a conventional, farcical exposure of middle class hypocrisy, yet in Rittner’s drama it becomes a fascinating study, never far from Czekhov and Witkacy, tapping all the resources of realism, irony and grotesque to show…

The Epistemological Interpretation of Transcendental Idealism and Its Unavoidable Slide into Compatibilism

2019

This paper consists in two major parts. In the first part, I explain and defend Kant’s explicit rejection of compatibilist theories of freedom in the Critique of Practical Reason. I do this by a careful analysis of some contemporary compatibilist theories. In the second major part, I explain how the epistemological interpretation of Kant’s transcendental idealism inevitably degenerates into a compatibilist version of freedom. The upshot will be that epistemological interpretations of transcendental idealism are not viable because of their connection with compatibilism, which Kant rejected.

Relations between natural and observable measures

2005

We give a complete description of relations between observable and natural measures in connection with invariance, ergodicity and absolute continuity.

Some remarks on minimal surfaces in riemannian manifolds

1970

Elementary symmetric functions of two solvents of a quadratic matrix equations

2008

Quadratic matrix equations occur in a variety of applications. In this paper we introduce new permutationally invariant functions of two solvents of the n quadratic matrix equation X^2- L1X - L0 = 0, playing the role of the two elementary symmetric functions of the two roots of a quadratic scalar equation. Our results rely on the connection existing between the QME and the theory of linear second order difference equations with noncommutative coefficients. An application of our results to a simple physical problem is briefly discussed.

Total curvatures of compact complex submanifolds in $$C/P^n$$

1995

LetM be a complex submanifold in\(C/P^n\). We define the total curvatures ofM and we get a local interpretation of them. Finally, we give a topological characterization for the total (non-absolute) curvature of complex hypersurfaces in\(C/P^n\).

A Tomographical Characterization of L-convex Polyominoes

2005

Our main purpose is to characterize the class of L-convex polyominoes introduced in [3] by means of their horizontal and vertical projections. The achieved results allow an answer to one of the most relevant questions in tomography i.e. the uniqueness of discrete sets, with respect to their horizontal and vertical projections. In this paper, by giving a characterization of L-convex polyominoes, we investigate the connection between uniqueness property and unimodality of vectors of horizontal and vertical projections. In the last section we consider the continuum environment; we extend the definition of L-convex set, and we obtain some results analogous to those for the discrete case.

Feuilletages Riemanniens singuliers

2006

Abstract We prove that a singular foliation on a compact manifold admitting an adapted Riemannian metric for which all leaves are minimal must be regular. To cite this article: V. Miquel, R.A. Wolak, C. R. Acad. Sci. Paris, Ser. I 342 (2006).