écrits

pas-soi-art/noyade

Nos Ntités ne sont pas ationales

Extraits de THE CATCHER IN THE RYE, J.D. Salinger, Signet Books,New York, 1961 — by armand wirgin — last modified 2010-02-13 15:08

Holden Caulfield réfléchit sur la permanence et l'évanescence.

Villes [II] — by armand wirgin — last modified 2009-08-05 16:34

Rimbaud, Presses Pocket, 1981

On dit que le mort saisit le vif — by armand wirgin — last modified 2009-06-14 12:51

extrait de Ulysse, James Joyce, Livres de Poche Gallimard, 1948, p. 156

LA FORME OU L’ARITHMETIQUE DU TEMPS de Yves Berchadsky et Jean-Paul Lacharme — by armand wirgin — last modified 2009-02-25 10:18

Dans tous les cas, d’une part la trans-formation d’un-écrit n’agit qu’en re-écriture d’autre-écrit, d’autre part les opérateurs d’écrits, l’écrit et ses auteurs, ne sont pas re-opérés directement par la lecture-re-écriture de leur écrit, enfin l’écrit premier ne peut être formellement transformé que par son « effacement actif » par autodafé, censure, interdiction, qui est donc une autre forme de re-écriture de l’écrit premier : on ne peut lire ou re-lire un écrit-effacé.

Perpetual American vanilla option pricing under single regime change risk. An exhaustive study. — by armand wirgin — last modified 2008-12-05 06:43

Miquel Montero. In this article we have followed a typical financial pathway that easily detects the origin of the reported oddness: the equation that eventually determines the optimal boundary value varies depending on the solution found.

Aucune législation bancaire ne saurait éliminer une crise, Le Capital, Livre III, Cinquième section, Capital Monétaire XVII, Karl Marx, NRF La Pléiade, 1968, p. 1211 — by armand wirgin — last modified 2008-10-26 15:51

Il tombe sous le sens qu’en période de crise il y a pénurie de « moyens de paiement ». La convertibilité des effets de commerce s’est substitue à la métamorphose des marchandises, et cela d’autant plus que, dans ces périodes, il y a davantage de maisons travaillant uniquement à crédit. Une législation bancaire faite d’ignorance et d’absurdité, comme celle de 1844-1845 , peut aggraver cette crise monétaire. Mais aucune législation bancaire ne saurait éliminer une crise.

Mais était-ce moi? — by armand wirgin — last modified 2008-10-19 16:40

Extrait de Ulysse de James Joyce

Courte vue : Dérégulation, avidité, spéculation, bulles…une analyse des dérapages du capitalisme — by armand wirgin — last modified 2008-10-04 14:26

Compte-rendu de Adrien de Tricornot (Le Monde Economie, 30 sept. 2008, p. IV) de la parution du livre de Marie-Paule Virard intitulé La Finance Mène-T-Elle Le Monde ?

Le rôle du crédit dans la production capitaliste Karl Marx, Le Capital, Livre III, Cinquième section, Crédit XVI, sous-section III, NRF 1968 — by armand wirgin — last modified 2008-10-04 12:59

L’institution des sociétés par actions représente, répétons-le, la négation de l’industrie capitaliste privée sur la base même du système capitaliste et détruit l’industrie privée dans la mesure même où elle s’étend et envahit de nouveaux secteurs de la production. Au demeurant, le crédit permet au capitaliste individuel, ou à celui qui passe pour tel, de disposer de manière absolue, dans certaines limites, du capital et de la propriété appartenant à autrui, donc du travail d’autrui. En disposant du capital social qui ne lui appartient pas, il a le pouvoir de disposer du travail social. Le capital lui-même, qu’on possède réellement ou qu’on est censé posséder aux yeux du public, devient finalement une simple base pour l’organisation du crédit.

Excerpt from « Abyss », in A Multitude of Sins, Richard Ford, Vintage, 2001 — by armand wirgin — last modified 2008-09-28 18:32

 

Limb preference in the gallop of dogs and the half-bound of pikas on flat ground — by armand wirgin — last modified 2008-09-28 20:16

During fast locomotion — gallop, half bound — of quadruped mammals, the ground contact of the limbs in each pair do not alternate symmetrically. Animals using such asymmetrical gait thus choose whether the left or the right limb will contact the ground first, and this gives rise to limb preference. During fast locomotion — gallop, half bound — of quadruped mammals, the ground contact of the limbs in each pair do not alternate symmetrically. Animals using such asymmetrical gait thus choose whether the left or the right limb will contact the ground first, and this gives rise to limb preference.

Un peu de forme a disparu de ce monde — by armand wirgin — last modified 2008-07-21 17:09

tiré de Kafka sur le Rivage, Hurki Murakami, 10/18, p. 553

Il y a — by armand wirgin — last modified 2008-07-04 13:34

poème de Guillaume Apollinaire

Ricci flow with surgery — by armand wirgin — last modified 2008-06-19 12:45

There is no (complete oriented 3-dimensional) noncompact κ-noncollapsed gradient shrinking soliton with bounded positive sectional curvature (and other theorems by Grisha Perelman)

Converging technologies for improving human performance — by armand wirgin — last modified 2008-06-22 13:43

Les lendemains qui chantent et où nous mène la quête scientifique

Cesium-137 Body Burdens in Alaskan Eskimos during the Summer of 1965 — by armand wirgin — last modified 2008-05-16 05:39

 

Das Prinzip von der Erhaltung der Schwerpunktsbewegung und die Trägheit der Energie — by armand wirgin — last modified 2008-05-14 05:34

 

"Sur l'état de l'éducation en France" de Laurent Lafforgue — by armand wirgin — last modified 2008-05-19 17:24

Le mathématicien s'exprime vertement.

La notion de centre de gravité en mécanique ondulatoire relativiste — by armand wirgin — last modified 2008-05-29 16:19

Un article de mon copain Serge Slansky

Different microhabitat preferences of field and bank voles under manipulated predation risk from an alien predator — by armand wirgin — last modified 2008-06-02 15:52

Around the world, alien predators have typically had a devastating impact on native prey.

Le claquement du fouet — by armand wirgin — last modified 2008-06-03 13:10

science addressing an important issue in the colonies

Jugend ohne Gott — by armand wirgin — last modified 2008-07-05 18:25

Roman de Odon von Horvath

Kurt Schwitters' Merzbau: The Desiring House — by armand wirgin — last modified 2009-05-08 17:03

by Jaleh Mansoor © 2002. From 1919 until a night in early October 1937, when Allied bombing destroyed the Merzbau, Kurt Schwitters continuously composed and manipulated this assemblage. The project, variously categorized as an architectural undertaking, as “Schwitters’ most important collage project,” or as a performatively elaborated sculptural program, entailed the ceaseless manipulation of the artist’s Hanover studio. Stretching vertically and horizontally to adjacent rooms, it eventually resulted in an all-encompassing environment. The internal space was transformed by the aggregation of found materials, objects, and sculptural forms affixed to the architectural structure. Alternately, Schwitters cut into and removed portions of the material pile-up he had amassed, as well as pieces of the architecture to which they were connected. He finally cut through the ceiling and floor to extend his work outside the original armature of the building. The expanse of Merzbau, developing and changing over a period of eight years, never cohered as a unified, architectural space or sculptural object. It came to formation, rather, as the site of Schwitters’ practice of continuous, and non-coded, production and destruction. Merzbau emerged as a function of a practice divested of either productive or deconstructive aims.

Mathematics underlying the 2008 financial crisis, and a possible remedy — by armand wirgin — last modified 2008-12-05 06:31

V.P. Maslov and V.E. Nazaikinskii Abstract. Among the diverse factors contributing to the current financial and economical crisis, there is a purely mathematical law not mentioned by economists. The indistinguishability of identical notes results in a condensation phenomenon (also known in a completely different situation in physics as Bose condensation): if the total amount of money in circulation exceeds a certain threshold (depending on various economic factors), then a collapse occurs. One possible remedy is to introduce several currencies to be used simultaneously; we show that this raises the threshold and thus might help at least to postpone the crisis. If each of the United States were to use its own unique currency along with the dollar, the threshold would be up to seven times higher, and the crisis may not have happened yet. The former abandonment of national currencies in euro countries in favor of one unique European money could also be viewed as an unfavorable factor in the development of the crisis.

The Dead Grandmother/Exam Syndrome and the Potential Downfall Of American Society, by Mike Adams, Biology Department, Eastern Connecticut State University, The Connecticut Review, 1990 — by armand wirgin — last modified 2008-10-27 16:59

A student's grandmother is far more likely to die suddenly just before the student takes an exam, than at any other time of year.

Threshold Model for Triggered Financial Bubbles on Networks by Marcel Ausloos and Filippo Petroni — by armand wirgin — last modified 2008-10-04 06:29

In order to give an alternative to the creation of financial bubbles, a theoretical model for information spreading on a financial network made of agents at nodes is studied. The effect of an external field is considered. The original part contains the implementation that the financial bubble is only triggered when a local variable (a so called activity awareness) reaches and goes above a threshold. The dynamical rules are constrained to be as simple as possible, in order to sort out the basic features; more elaborated variants can be imgined and are proposed to come closer to realistic cases. Several results, using methods from non-equilibrium statistical mechanics, are obtained for a Erdos-Renyi network. They are interpreted through simple analytical laws, scale free or logistic map-like concepts, i.e., for (i) the sizes, durations, and number of activity awareness avalanches, including their respective distributions, (ii) the number of times the external field is applied to one possible node (= agent) before all network nodes are found to be above the threshold, (iii) the number of nodes still below the threshold and (iv) the number of ''hot'' nodes (close to threshold) at each time step. No log-periodic structure is found in the present case, - as expected.

Population extinction in a fluctuating environment — by armand wirgin — last modified 2008-09-28 19:52

Environmental noise can cause an exponential reduction in the mean time to extinction (MTE) of an isolated Environmental noisecan cause an exponential reduction in the mean time to extinction (MTE) of an isolated population. We study this effect on an example of a stochastic birth-death process with rates modulated by a colored Gaussian noise. A path integral formulation yields a transparent way of evaluating the MTE and finding the optimal realization of the environmental noise that determines the most probable path to extinction. The population-size dependence of the MTE changes from exponential in the absence of the environmental noise to a power law for a short-correlated noise and to no dependence for long-correlated noise. We also establish the validity domains of the limits of white noise and adiabatic noise.

L’´ecriture et le réchauffement de la Terre — by armand wirgin — last modified 2008-09-07 15:48

Les ordinateurs chauffent et participent ainsi au changement climatique. Leur dissipation d’énergie est reliée à leur fonction logique, à ce qui est langage dans ce qu’ils font. Serait-il déraisonnable d’essayer de généraliser cette proposition, en affirmant que la pollution trouve son origine dans l’écriture ? Une telle question conduit à s’interroger d’une part sur les fondements logiques des sciences et des techniques, et d’autre part sur les liens entre leur développement et la dégradation de l’environnement. Nous proposons de revisiter la notion de mesure, sur laquelle sont fondées les sciences expérimentales, à la lumière de l’algorithmique. Nous envisagerons la mesure comme un acte créateur du physicien, permettant d’espérer un développement des connaissances compatible avec l’avenir de notre planète.

Can You Hear the Femur Play? Bone Audio Speakers at the Nanoscale — by armand wirgin — last modified 2008-10-02 10:11

Leonardo, Vol. 41, Issue 4 (2008), by Boo Chapple with William Wong ABSTRACT: This paper describes the research process involved in making audio speakers out of cow bone. The paper begins by discussing the conceptual basis of the work. It goes on to explain the piezoelectric nature of the bone matrix and how this makes it possible for bone to operate as an audio speaker. It then chronicles the process of working from a theoretical possibility to a functional speaker. In the concluding section of the paper, the final artifacts and conceptual outcomes of the process are discussed.

Desperately seeking mathematical truth — by armand wirgin — last modified 2008-09-28 20:02

We mathematicians have a naive belief in truth. We prove theorems. Theorems are deductions from axioms. Each line in a proof is a simple consequence of the previous lines of the proof, or of previously proved theorems. Our conclusions are true, unconditionally and eternally. The Babylonians’ quadratic formula and the Greeks’ proof of the irrationality of p2 are true even in the Large Magellanic Cloud. How do we know that a proof is correct?

Phase Transitions, Chaos and Joint Action in the Life Space Foam — by armand wirgin — last modified 2008-06-22 15:12

This paper extends our recently developed Life Space Foam (LSF) model of motivated cognitive dynamics [1]. LSF uses adaptive path integrals to generate Lewinian force–fields on smooth manifolds, in order to characterize the dynamics of individual goal–directed action. According to explanatory theories growing in acceptance in cognitive neuroscience, one of the key properties of this dynamics, capable of linking it to microscopic-level cortical neurodynamics, is its meta-stability and the resulting phase transitions.

Ne sera pas post-humain qui veut — by armand wirgin — last modified 2008-06-22 13:53

Le mouvement "transhumaniste" et la convergence entre nanotechnologies, biotechnologies, informatique et sciences cognitives. Retenez ce sigle: NBIC

WANTED: Schrödinger's cat dead or alive — by armand wirgin — last modified 2008-04-28 13:15

 

WANTED: Schrödinger's cat dead and alive — by armand wirgin — last modified 2008-04-28 13:52

 

The inverse crime — by armand wirgin — last modified 2008-04-28 15:09

 

A Young photon — by armand wirgin — last modified 2008-04-28 17:52

 

shake, rattle and roll — by armand wirgin — last modified 2008-04-29 12:30

 

Amplification and increased duration of earthquake motion on uneven stress-free ground — by armand wirgin — last modified 2008-05-01 14:15

 

Simulation of seismic response in a city-like environment — by armand wirgin — last modified 2008-05-01 14:16

 

Accelerator Disaster Scenarios, the unabomber, and scientific risks — by armand wirgin — last modified 2008-05-01 14:40

 

mathematician moves from shack to prison — by armand wirgin — last modified 2008-05-01 15:17

 

Midwifery and graffiti — by armand wirgin — last modified 2008-05-03 08:11

 

when are swing options bang bang and how to use it — by armand wirgin — last modified 2008-05-03 13:22

 

Constant proportion portfolio insurance in presence of jumps in asset prices — by armand wirgin — last modified 2008-05-03 13:27

 

A scientific article by G. Perec — by armand wirgin — last modified 2008-05-04 10:14

 

anti-photon — by armand wirgin — last modified 2008-05-13 16:12

 

Variae considerationes circa series hypergeometricas — by armand wirgin — last modified 2008-05-14 17:15

Translation of an article by L. Euler

Leona Marshall's role in the Chicago Pile 1 — by armand wirgin — last modified 2008-05-13 16:32

 

Lisa Fittko rescued many who fled the nazis — by armand wirgin — last modified 2008-05-13 16:37

 

non pathogenic variant virus — by armand wirgin — last modified 2008-05-14 05:25

 

Titi manipulates Newton and Schrödinger — by armand wirgin — last modified 2008-05-16 05:59

 

Germaine Tillion (100 ans) — by armand wirgin — last modified 2008-05-17 07:21

 

Germaine Tillion (100 ans de resistance) — by armand wirgin — last modified 2008-05-17 07:24

 

Earthquake prediction causes havoc — by armand wirgin — last modified 2008-05-17 14:29

 

Photon radiosurgical system — by armand wirgin — last modified 2008-05-19 16:57

Interstitial radiosurgery implies the delivery of ionizing radiation interstitially to the tumor (as in brachytherapy) in a high dose single fraction (as in radiosurgery) and hence the name. In this chapter, we present our experience using a battery-powered, miniature x-ray generator that can be placed stereotactically into intracranial tumors to deliver a single fraction of high dose interstitial irradiation in less than an hour.

Indigestion, gestion, hydrates de méthane — by armand wirgin — last modified 2008-05-17 14:47

 

HaarP and SurA — by armand wirgin — last modified 2008-05-20 08:21

"The hurricanes which have been raging recently off the American coasts were created by Russian military specialists. Using a special electromagnetic generator they have perfected a secret meteorological weapon, capable of striking innocent people from any distance and destroying their homes."

Nomination for nobel prize of Irena Sendlerowa — by armand wirgin — last modified 2008-05-22 16:19

Polish woman, aged 97, who saved thousands of Jews, mostly children, from death in the Warsaw ghetto

photonic sieve — by armand wirgin — last modified 2008-05-22 15:24

 

Relèvement borélien compatible avec une classe d'ensembles négligeables. — by armand wirgin — last modified 2008-05-25 07:19

Application à la désintégration des mesures.

Sur le comportement du champ électromagnétique aux arêtes — by armand wirgin — last modified 2008-06-10 07:26

 

Les grands chantiers culturels — by armand wirgin — last modified 2008-06-10 09:43

La construction du musée du quai Branly, la création de la Cinémathèque française, la rénovation des espaces d'accueil du musée d'Orsay, et la restauration du théâtre de l'Odéon, du Grand Palais et du grand foyer de l'Opéra Garnier comptent parmi les grands chantiers culturels récents. Sur la base de ces six exemples et des autres grands chantiers culturels programmés depuis 1998, la Cour des Comptes évalue l'activité et les investissements du ministère de la culture en la matière. Compte tenu du caractère « politico-administratif » des grands chantiers culturels, la Cour note des écarts substantiels entre le coût des projets au moment de leur programmation et le coût réel, une fois les travaux achevés.

While my mother was giving birth to me, André Weil wrote this from prison — by armand wirgin — last modified 2008-06-16 14:03

For André Weil, a mathematician, “having a disagreement with the French authorities on the subject of [his] military ‘obligations’ was the reason [he] spent February through May [of 1940] in a military prison.” When he was released, he went into the service. Weil wrote this fourteen-page letter to Simone Weil, his sister, a philosopher, from Bonne-Nouvelle Prison in Rouen in March 1940.

Existe-t-il un art qui ne soit pas un “Financial Art”? — by armand wirgin — last modified 2009-02-22 09:23

En art la réussite est-elle toujours la valeur première? Avant que ne s’impose dans le milieu de l’art une "morale de la réussite", comme l’avait noté Jean-Philippe Domecq en 1994 dans le Pari littéraire (Esprit, 1994), regarder les œuvres pour elles-mêmes n’était pas suspect. Puis est venu le temps du "Financial Art" imposant ses critères à lui... Les critères propres au "Financial Art" sont ceux du milieu et de ses réseaux, ils n’ont rien de commun avec les critères esthétiques liés aux œuvres [1]. Ils n'ont rien de commun avec l’histoire de l’art non plus, puisqu'ils se substituent à elle. Car c’est le réseau qui crée la valeur, pas l’artiste. Seul le succès compte.

photon sieve — by armand wirgin — last modified 2009-06-14 16:02

Photon sieves consisting of a large number of pinholes appropriately distributed over the Fresnel zones focus electromagnetic radiation effectively [1] and provide new design options for high-power VUV optics.

Entretien/Gilles Barbier, A Moitié Carré, A Moitié Fou — by armand wirgin — last modified 2009-05-08 16:28

Un jeune plasticien parle de son art. Particules, No. 24, avril/mai 2009