Parcourir les contenus (550 total)

Mots-clés: 1969, ABEL, ALAOGLU, BIRKHOFF, BISHOP, BOREL, CHOQUET, CONGRES ET CONFERENCES, DIXMIER, DOBRUSHIN, EN, EUCLIDE, GIBBS, GINIBRE, HAMILTON, HILBERT, KUBO, LEEUW, MARTIN, MECANIQUE STATISTIQUE, NEUMANN, POWERS, PREPUBLICATION, REYNOLDS, ROBINSON, RUELLE, SCHWINGER, SINAI, SYMETRIE BRISEE, WIGHTMAN

Mots-clés: 1968, ALAOGLU, BAIRE, BANACH, BOURBAKI, EN, HAMILTON, HILBERT, MECANIQUE STATISTIQUE, PREPUBLICATION, RUELLE, VAN HOVE

Mots-clés: 1967, ASCOLI, BANACH, EN, GAZ, GIBBS, MECANIQUE STATISTIQUE, PREPUBLICATION, RESEAUX, RUELLE, STEINHAUS, VAN HOVE

Mots-clés: 1967, ABEL, BOURBAKI, C*-ALGEBRES, EN, GEL'FAND, GROUPES D'AUTOMORSPHISME, HAAR, JACOBS, NEUMANN, PREPUBLICATION, RUELLE

Mots-clés: 1967, ABEL, BANACH, EN, ENTROPIE, GIBBS, PHYSIQUE STATISTIQUE, PREPUBLICATION, RESEAUX, RUELLE, STONE, SYSTEMES COMPLEXES, WEIERSTRASS

Mots-clés: 1966, CONDENSATION, DOBRUSHIN, EN, GAZ, GINIBRE, GRIFFITHS, GROSSMANN, PHYSIQUE STATISTIQUE, PREPUBLICATION, RESEAUX, RUELLE, SYSTEMES COMPLEXES

Mots-clés: 1966, ABEL, BILLINGSLEY, EN, ENTROPIE, EUCLIDE, GEL'FAND, JACOBS, KOLMOGOROV, LEBESGUE, MACMILLAN, NIANI, PHYSIQUE STATISTIQUE, PREPUBLICATION, RESEAUX, ROBINSON, ROKHLIN, RUELLE, SYSTEMES COMPLEXES

Mots-clés: 1966, ABEL, ALAOGLU, ALGEBRES, BIRKHOFF, CHOQUET, EN, GEL'FAND, GROUPES D'AUTOMORPHISMES, INVARIANTS, LANFORD, NAGY, NEUMANN, PREPUBLICATION, RIESZ, RUELLE, SEGAL, STONE, WEIERSTRASS

Mots-clés: 1966, ABEL, EN, FOCK, GEL'FAND, GIBBS, HILBERT, LEBESGUE, MECANIQUE STATISTIQUE, PREPUBLICATION, RUELLE, SEGAL

Mots-clés: 1966, C*-ALGEBRES, EN, EUCLIDE, FOURIER, GELFAND, INVARIANTS, NAIMARK, PREPUBLICATION, ROBINSON, RUELLE, SEGAL, SYMETRIE

Mots-clés: 1965, BOLTZMANN, BOSE, COULOMB, DIRAC, DOBRUSHIN, EINSTEIN, EN, FERMI, FISHER, FOURIER, HAMILTON, HERMITE, HILBERT, PHYSIQUE, PREPUBLICATION, RUELLE, STABILITE, THEORIE QUANTIQUE, YUKAWA

Mots-clés: 'T HOOFT, 2002, ATIYAH, BOTT, CALABI, CARTAN, CHAMPS DE JAUGE, CHAN, DIRAC, DUISTERMAAT, EN, EURLER, HAMILTON, HECKMAN, HIGGS, HILBERT, INVARIANTS DE SEIBERG-WITTEN, LIE, LORENTZ, MATTAI, NAKAJIMA, NEKRASOV, PATON, PREPUBLICATION, QUILLEN, SCHWINGER, SIEBERG, SINGER, THEORIE DES CHAMPS, THOM, TODA, UHLENBECK, VERLINDE, WILSON, WITTEN, YAU, YOUNG

Mots-clés: 2002, BATALIN, BAULIEU, DIFFEOMORPHISMES, EN, ESPACE, FADDEEV, FEYNAMN, HAMILTON, HODGE, JACOBI, KONTSEVICH, LAGRANGE, LIE, LOSEV, MOYAL, NEKRASOV, POISSON, POPOV, PREPUBLICATION, RICCI, RIEMANN, SEIBERG, STOKES, SYMETRIE, THEORIE DES CHAMPS, TOPOLOGIE, VILKOVISKY, WESS, WITTEN, ZUMINO

Mots-clés: 2002, ABEL, CHAMPS DE JAUGE, DIRAC, EN, EUCLIDE, FOCK, FREDHOLM, GELFAND, GROTHENDIECK, HEISENBERG, HILBERT, INSTANTONS, JORDAN, KAHLER, MILLS, MORITA, NEKRASOV, NEUMANN, PFAFF, PHYSIQUE, POISSON, PREPUBLICATION, SERRE, SWAN, YANG

Mots-clés: 'T HOOFT, 2002, ATIYAH, BIANCI, BOGOMOLNY, BORN, CHAMPS DE JAUGE, CHAN, CHARLIER, CHERN, DERHAM, DIRAC, DIRICHLET, DOUGLAS, DRINFELD, EN, EUCLIDE, EULER, FOCK, FREDHOLM, GELFAND, GIESEKER, GROJNOWSKI, GROSS, GROTHENDIECK, HEISENBERG, HIGGS, HILBERT, HITCHIN, HODGE, HULL, INFELD, JACOBI, LEIBNITZ, LIE, LOSEV, MANIN, MAXWELL, MILLS, MINKOWSKI, MOORE, MOYAL, NAHM, NAKAJIMA, NEKRASOV, NEUMANN, NEVEU, PATON, PHYSIQUE, POISSON, POLCHINSKI, POLYAKOV, PREPUBLICATION, ROSLY, SCHWARZ, SEIBERG, SELIVANOV, SHATASHVILI, SIMONS, SOLITONS, TODA, WILSON, WITTEN, YANG

Mots-clés: 2002, BOGOLYUBOV, CHAMPS DE JAUGE, CHAN, CONNES, DIRAC, DOLAN, EN, EUCLIDE, HEISENBERG, HILBERT, KAHLER, MILLS, MINKOWSKI, MODELES DES CORDES VIBRANTES, NAPPI, NEKRASOV, PATON, PHYSIQUE, PREPUBLICATION, WEYL, YANG

Mots-clés: 2002, CHAN, EN, EUCLIDE, HILBERT, LAPLACE, LORENTZ, MILNE, MINKOWSKI, NEKRASOV, PATON, POLCHINSKI, PREPUBLICATION, RANKIN, SELBERG, TACHYONS, THEORIE QUANTIQUE DES CHAMPS, VIRASORO

Mots-clés: 'T HOOF, 2001, ABOU-ZEID, ABOUELSAOOD, AGANAGIC, AHARONY, AKHMEDOV, ALEKSEEV, ALEXANDER, ALTES, ALVAREZ, AMBJORN, ANDREEV, ARDALAN, ARFAEI, ARMONI, ARROYO, ATIYAH, BACHAS, BAEK, BALDES, BARBON, BARS, BASSETTO, BAULIEU, BAYEN, BELLISAI, BELLISSARD, BERGMAN, BERRY, BIANCHI, BIGATTI, BILAL, BOGOMOLNY, BONARA, BONDIA, BORDEMANN, CALLAN, CHEN, CHERN, CHU, CINEMATIQUE, COLEMAN, CONNES, CREMMER, CURTRIGHT, DA SILVA, DARBOUX, DEBOER, DERRICK, DEWILDE, DEWITT, DIJKGRAAF, DOREY, DORN, DOUGLAS, DRINFELD, DURHUUS, EGUCHI, ELITZUR, ELST, EN, ESPACE-TEMPS, EUCLIDE, FAIRLIE, FERRARA, FEYNMAN, FIGUEROA, FILK, FLATO, FOCK, FOURIER, FRADKIN, GANOR, GAROUSI, GAUME, GAUSS, GERHOLD, GHOSH, GINZBURG, GIROTTI, GIRVIN, GOMES, GOMIS, GONZALEZ, GOPAKUMAR, GORDON, GRACIA, GREEN, GRIGUOLO, GRIMSTRUP, GROSS, GROSSE, GUBSER, GUKOV, HALL, HALPERIN, HAMILTON, HARMARK, HARVEY, HASHIMOTO, HE, HEADRICK, HEISENBERG, HEWETT, HIGGS, HITCHIN, HO, HOFMAN, HOLLLOWOOD, HOLLYWOOD, HOPPE, HWANG, INSTANTONS, ISHIBASHI, ISIDRO, ISO, ITZHAKI, JABBARI, JACKSON, JONSSON, JULIA, JURCO, KABAT, KAJIURA, KALLIN, KAMIMURA, KAPUSTA, KARCZMAREK, KAWAI, KHOZE, KIEM, KINAR, KITAZAWA, KLAUDER, KLEIN, KONECHNY, KONTSEVICH, KORTHALS, KOSTELECKY, KRAUS, LANDAU, LANE, LARSEN, LAUGHLIN, LECOMTE, LI, LICHNEROWICZ, LIFSCHYTZ, LIU, LLEDO, LLOSA, LOTT, LUGO, MADORE, MAGUEIJO, MAIN, MAJORANA, MAKEENKO, MALDACENA, MARTIN, MARTINEC, MATHEWS, MATONE, MATSUO, MATUSIS, MAXWELL, MEHEN, MICHELSON, MILLS, MINASIAN, MINKOWSKI, MINWALLA, MODELES DES CORDES VIBRANTES, MOLLER, MOLT, MOORE, MORITA, MOYAL, NAHM, NAKAYAMA, NAPPI, NARDELLI, NEKRASOV, NEST, NEVEU, NICOLAI, NISHIMURA, NOETHER, OKAWA, OOGURI, OZ, PETRIELLO, PIETRONI, PIOLINE, PLANCK, POINCARE, POISSON, POLCHINSKI, POLYAKOV, POLYCHRONAKOS, POPP, POULIOT, PRANGE, PREPUBLICATION, RAAMSDONK, RAMOND, RECKNAGEL, RIEFFEL, RIEMANN, RIVELLES, ROZALI, RUSSO, SADOOGHI, SCHAFFER, SCHERK, SCHHUPP, SCHNABL, SCHOMERUS, SCHRAML, SCHULZ, SCHWARZ, SCHWEDA, SEIBERG, SEMENOFF, SHEIKH, SHENKER, SHURYAK, SIEBERG, SIMONS, SNYDER, SOLITONS, SONDHI, SONNENSCHEIN, SPRADLIN, STERNHEIMER, STROMINGER, SUDARSHAN, SUSSKIND, SZABO, TAKAYANAGI, TAYLOR, THEISEN, THEORIE QUANTIQUE DES CHAMPS, TOMASIELLO, TOUMBAS, TRAVAGLINI, TSENG, TSEYTLIN, TSUCHIYA, UEMATSU, VARILLY, VERLINDE, VIAN, WARD, WESS, WEYL, WILSON, WISE, WITTEN, WU, WULKENHAAR, YANG, YAVARTANOO, YOST, ZACHOS, ZHOU, ZUMINO, ZWICKY

Mots-clés: 1977, BAIRE, DENJOY, ENSEMBLES ORDONNES, FR, JENSEN, MILLER, MOTCHANE, PREPUBLICATION, SOUSLIN, TENNENBAUM, THEORIE DES ENSEMBLES, TOPOLOGIE

Mots-clés: 1967, CARTAN, CLEBSCH, CONGRES ET CONFERENCES, DALITZ, DE RAFAEL, DENSITE, DONCEL, EN, FR, FRENET, GORDAN, HILBERT, LORENTZ, MATRICES, MICHEL, MINNAERT, PHYSIQUE NUCLEAIRE, POLARISATION, PREPUBLICATION, RENOUARD, THEORIE QUANTIQUE, WIGNER

Mots-clés: 1968, BAZIN, CALAPRICE, COMMINS, DIRAC, DOLSON, DRESS, EN, FITCH, GIBBS, GOSHAW, GURSEY, HILBERT, HILL, HULL, INVARIANTS, LEE, MICHEL, MILLER, NATHAN, OKUN, OVERSETH, PAIS, PARTICULES, PHYSIQUE NUCLEAIRE, POINCARE, PREPUBLICATION, RAMSEY, ROTH, RUBBIA, SCHWARTZ, SUN, SYMETRIE, WICK, WIGNER, WOLFENSTEIN, YANG, ZACHER

Mots-clés: 1969, ABEL, ADLER, ANDERSON, ATOMES, BANACH, BARGMANN, BAUER, BIRKHOFF, BLACKETT, BOHR, BORH, BORN, BOSE, BOURBAKI, BROGLIE, CABBIBO, CARTAN, CASIMIR, CHRISTENSON, COKER, CONGRES ET CONFERENCES, COULOMB, CRONIN, CURIE, DALITZ, DIRAC, ECKART, EDDINGTON, EINSTEIN, EN, EUCLIDE, EYRING, FANO, FERMI, FEYNMAN, FITCH, FRANZINI, FROBENIUS, GALILEE, GELFAND, GELL-MANN, GOURDIN, GRIFFIN, GURSEY, HAAG, HADRONS, HAMILTON, HEISENBERG, HILBERT, HULTEN, HUND, INGLIS, JAHN, JENSEN, JOLIOT, KAOT, KASTLER, KILLING, KIMBALL, KOSTANT, LENZ, LIE, LIPKIN, LONDON, LORENTZ, MAC LANE, MACKEY, MAYER, MENDELEEV, MICHEL, MINKOWSKI, MOLECULES, MOORE, MOTTELSON, NE'EMANN, NEWTON, NISHIJIMA, O'RAFEARTAIGH, OAKES, OCCHIALINI, OKUBO, OPPENHEIMER, PAULI, PHYSIQUE NUCLEAIRE, POINCARE, POISSON, POLISH, PONZANO, PREPUBLICATION, RACAH, RADICATI, REGGE, RENNER, RUNGE, SAKATA, SCHRODINGER, SEGAL, SHALIT, SHELL, SOURIAU, SYMETRIE, TALMI, TELLER, THEORIE DES GROUPES, THEORIE QUANTIQUE, TURLEY, VAN DER WARDEN, VAN HOVE, VON NEUMANN, WALTER, WEISSBERGER, WEIZSAKER, WEYL, WIGNER, YOUNG, YUKAWA, ZEEMAN

Mots-clés: 1969, ABEL, CABBIBO, CARTAN, EN, GELL-MANN, HADRONS, HAMILTON, HILBERT, KILLING, LIE, MICHEL, OAKES, PHYSIQUE, POINCARE, PREPUBLICATION, RADICATI, RENNER, SYMETRIE BRISEE

Mots-clés: 1969, ABEL, ALGEBRE, CABBIBO, CARTAN, CASIMIR, EN, EUCLIDE, GELL-MANN, GEOMETRIE, HILBERT, JACOB, KILLING, LIE, MICHEL, MONTGOMERY, NISHIJIMA, PREPUBLICATION, RADICATI, SCHWARTZ, SYMETRIE BRISEE, THOM, YANG

Mots-clés: 1970, ABEL, CABBIBO, CURIE, DALITZ, DARZENS, DOBRUSHIN, EN, EUCLIDE, GELFAND, GLIMM, HAAR, HADRONS, HEISENBERG, HILBERT, JAFFE, MATHEMATIQUES, MICHEL, NAIMARK, PEGORARO, POINCARE, PREPUBLICATION, RADICATI, RIEMANN, ROBERTSON, SCHLOSSMANN, SEGAL, STARK, SUBBA RAO, SYMETRIE BRISEE, THOM, WALKER, ZEEMAN

Mots-clés: 1989, ABEL, ALGEBRES NON ASSOCIATIVES, ANALYSE DE COVARIANCE, BIEDENHARN, CARTAN, CONWAY, EN, EULER, GRAMM, HERMITE, HIGGS, HIGMAN, LAGRANGE, LANDAU, LEECH, LIE, MCLAUGHLIN, MICHEL, PREPUBLICATION, RADICATI, RAMANUJAN, REPRESENTATIONS DE GROUPES, SATTINGER, SIMS, SLOANE, TOLEDANO

Mots-clés: 1988, BIEBERBACH, BRAVAIS, CRISTALLOGRAPHIE, EN, EUCLIDE, FR, MATHEMATIQUES, MICHEL, MOZRZYMAS, PREPUBLICATION, WYCKOFF

Mots-clés: 1987, ABEL, BACRY, BLOCH, BORN, BRILLOUIN, CLASSIFICATION, CLOIZEAUX, EN, ENERGIE, EUCLIDE, EVARESTOV, FOURIER, FROBENIUS, GROUPES SPATIAUX, HERMITE, HILBERT, KARMAN, MACKEY, MICHEL, PREPUBLICATION, SEITZ, SMIRNOV, SOLIDES, WIGNER, WYCKOFF, ZAK

Mots-clés: 1986, ABEL, ASTRONOMIE, ATOMES, BACRY, BLOCH, BRAVAIS, BRILLOUIN, CLOIZEAUX, CRISTALLOGRAPHIE, DELONE, DIRICHLET, EN, ENERGIE, ETOILES, EUCLIDE, FEDOROV, FROBENIUS, HAMILTON, HEISENBERG, HILBERT, LORENTZ, MACKEY, MICHEL, MINKOWSKI, MODELISATION, ORBITE, POINCARE, PREPUBLICATION, SEITZ, SOLIDES, SYLOW, VORONOY, WEYL, WIGNER, WYCKOFF, ZAK

Mots-clés: 1985, BLECH, BOHR, BRAVAIS, BRILLOUIN, CAHN, CRISTAUX, DE BROGLIE, DE BRUIGN, DELONE, DIRICHLET, DUNEAU, EN, EULER, FEDOROV, FIBONACCI, FONCTIONS, FOURIER, FRAMER, GRATIAS, HAMMAN, HAU, HESSEL, JANNER, JENSEN, KATZ, KNUTH, KUO, LEVINE, MAC KAY, MATHEMATIQUES, MICHEL, MINKOWSKI, PAVAGE, PENROSE, PREPUBLICATION, ROBINSON, RUELLE, SCHECHTMAN, SCHONFLIES, SETIZ, STEINHART, STENO, VON LAUE, WANG, WEISS, WIGENR

Mots-clés: 1985, ABRAGAM, ANNEES 1950, BARGMANN, BETHE, BLACKETT, BLOCH, BOHR, BORN, BUTLER, DALITZ, DARWIN, DIRAC, DYSON, EN, ENATSU, FEATHER, FERMI, FEYNAMNN, FIERZ, FROHLICH, FUCHS, FURTH, GELFAND, GELL-MANN, GOEPPERT, GOLDSTONE, HAMILTON, HANSEN, HEISENBERG, HEITLER, HOROWITZ, JACOB, JAHN, JENSEN, JORDAN, KALLEN, KLEIN, KOFOED, KONOPINSKI, KRISH, LANDAU, LINDHART, LOIS DE CONSERVATION, LORENTZ, MAJORANA, MATTEWS, MEYER, MICHEL, MILLS, MOLLER, MOON, NAMBU, NAUENBERG, NE'EMAN, NEUMANN, OCCHIALINI, OLIPHANT, ONEDA, OPPENHEIMER, PAIS, PARTICULES, PAULI, PEASLEE, PEIERLS, PERKINS, PHYSIQUE NUCLEAIRE, POINCARE, PONTECORVO, POWELL, PREPUBLICATION, PROCA, PRYCE, RACAH, ROCHESTER, ROSENFELD, SCHOENBERG, SPEISER, STEINBERGER, SYMETRIE, TIOMMO, TOUSCHECK, UHLENBECK, WHEELER, WICK, WIGHTMAN, WIGNER, WILSON, YAKAWA, YANG, ZWEIG

Mots-clés: 1985, ABEL, BECKER, BIEBERBACH, BRAVAIS, BREZIN, CARTAN, COXETER, DALITZ, DYNKIN, EN, EUCLIDE, GIBBS, HIGGS, HILBERT, KAYMAKCALAN, KERF, LANDAU, LIE, MCGLIM, MICHEL, MINKOWSKI, MORSE, MOSTOW, MOZRZYMAS, O'RAIFEARTAIGH, PHYSIQUE, PREPUBLICATION, RIEMANN, RUEGG, SATZ, SYMETRIE BRISEE, TOLEDANO, WALI, WEISSENBERG, WEYL, WIGNER, WYCKOFF

Mots-clés: 1984, AHARONY, ANALYSE DE COVARIANCE, BREZIN, CHAMPS VECTORIELS, COXETER, EN, GELL-MANN, GERVAIS, GROUPE DE RENORMALISATION, HAMILTON, HIGGS, KADANOFF, KHORZHENEVSKII, LANDAU, LE GUILLOU, LEE, MICHEL, PREPUBLICATION, SYMANZIK, TOLEDANO, WEGNER, WILSON, ZINN-JUSTIN

Mots-clés: 1983, CABIBBO, EN, FRITZSCH, HIGGS, KOBAYASHI, LIE, MASKAWA, MESONS, MICHEL, NAIR, PECCEI, PREPUBLICATION, QUARKS, QUINN, STECH, WALI

Mots-clés: 1983, AMATI, AMPERE, ANDERSON, BETHE, BLACKETT, CAVENDISH, CISTENAY DU FAY, COULOMB, DARWIN, DIRAC, DONCEL, EN, FERMI, FITCH, FUKUDA, FURRY, GOEPPERT, GORDON, GOUDSMIT, HAMILTON, HAYAKAWA, HEISENBERG, HERMITE, JOLIOT-CURIE, JORDAN, JOST, KEMMER, KLEIN, KONOPINSKI, KRAMERS, LEE, LORENT, MAJORANA, MAXWELL, MEYER, MICHEL, MOTTELSON, MUJAMOTO, MUKHERJI, NEDDERMEYER, NISHIJIMA, OCCHIALINI, ONEDA, OPPENHEIMER, OZAKI, PAIS, PARTICULES, PAULI, PHYSIQUE NUCLEAIRE, POINCARE, PREPUBLICATION, RACAH, RASCHE, RAVENHALL, SAKHAROV, SASAKI, SKOBELTZYN, TELEGDI, UHLENBECK, VAN WYK, VITALE, WEISSKOPF, WEYL, WICK, WIGNER, WILSON, WOLFENSTEIN, YANG, ZEEMAN

Mots-clés: 1983, BECQUEREL, CLIFFORD, DIRAC, FERMI, FR, GELL-MANN, HERTZ, HIGGS, HISTOIRE MODERNE ET CONTEMPORAINE, KATUZA, KLEIN, KRONIG, LEE, LIE, LORENTZ, MAXWELL, MICHEL, MILNOR, ORNSTEIN, PAULI, PHYSIQUE, PLANCK, PREPUBLICATION, RASETTI, SALAM, SCHRODINGER, SYMETRIE, T'HOOFT, VAN WYK, WARD, WEINBERG, WEYL, YANG, ZWEIG

Mots-clés: 1983, ANDERSON, CALLAN, CHADWICK, DIRAC, FR, GELL-MANN, GLASHOW, GOLDSTONE, HIGGS, JOLIOT CURIE, LAWRENCE, LIE, MAXWELL, MICHEL, NAMBU, PERRIN, POLYAKOV, PREPUBLICATION, RADIOACTIVITE ARTIFICIELLE, RUBAKOV, SAKHAROV, SALAM, SLANSKY, SU, T'HOOFT, WARD, WEINBERG, ZWEIG

Mots-clés: 1983, ANALYSE VECTORIELLE, BREZIN, DZYALOSHINSKII, EN, GELL-MANN, GERSTEINT, GUILLOU, HAMILTON, JORDAN, MICHEL, MUKAMEL, PHYSIQUE, PREPUBLICATION, RADICATI, RENORMALISATION, ROCKEFELLER, THEOREME DU POINT FIXE, WALLACE, ZIA, ZINN-JUSTIN

Mots-clés: 1983, ABEL, ANALYSE VECTORIELLE, BETHE, CHEVALLEY, COXETER, EN, ENSEMBLE DE POINTS, FR, GRAMM, HOPFIELD, INVARIANTS, JARIC, KILLINGBECK, KOPSKY, LANDAU, LIE, MATHEMATIQUES, MEYER, MICHEL, MOLIEN, POINCARE, PREPUBLICATION, SCHWARZ, SHARP, SHEPARD, STANLEY, THEORIE DES CHAMPS, THEORIE DES GROUPES, TODD, ZERO

Mots-clés: 1983, COXETER, DZYALOSHINSKII, EN, GURFAN, HIGGS, INVARIANTS, JARIC, LANDAU, LIFSCHITZ, MICHEL, MUKAMEL, POLYNOMES, PREPUBLICATION, SCHWARZ, SHARP, STANLEY, THEORIE DE LANDAU, TOLEDANO, TRANSITIONS DE PHASES