Institut
de Mathématiques de Luminy
| BIBLIOGRAPHIE - Stéphane LOUBOUTIN |
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Année
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Publications
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Files | Type |
| 2011 | Louboutin Stéphane. Mean values of $L$-functions and relative class numbers of cyclotomic fields. Publ. Math. Debrecen 78, 647--658, 2011. |
ACL | |
| Louboutin Stéphane. Upper bounds for residues of Dedekind zeta functions and class numbers of cubic and quartic number fields. Math. Comp. 80, 1813--1822, 2011. |
ACL | ||
| Louboutin Stéphane. Some quartic number fields containing an imaginary quadratic subfield. Colloq. Math. 122, 139--148, 2011. |
ACL | ||
| 2010 | Louboutin Stéphane. On some cubic or quartic algebraic units. J. Number Theory 130, no. 4, 956--960, 2010. |
ACL | |
| 2009 | Kwon Soun-Hi, Louboutin Stéphane, Park S.-M., Non-abelian normal CM-fields of degree $2pq$. J. Aust. Math. Soc., 87, 129--144, 2009. |
ACL | |
| Louboutin Stéphane. On the divisibility of the class number of imaginary quadratic number fields. Proc. Amer. Math. Soc., 137, 4025--4028, 2009. |
ACL | ||
| Louboutin Stéphane. On the Ono invariants of imaginary quadratic number fields. J. Number Theory, 129, 2289--2294, 2009. |
ACL | ||
| Barry Amadou D., Louboutin Stéphane. On the fourth moment of theta functions at their central point. Contemporary Math., 487, 1--7, 2009. |
ACL | ||
| 2008 | Louboutin Stéphane. |
260 k |
ACL |
| Louboutin Stéphane. Some explicit upper bounds for residues of zeta functions of number fields taking into account the behavior of the prime 2. Manuscripta Math. 125, 43--67, 2008. |
ACL | ||
| Louboutin Stéphane. Localization of the complex zeros of parametrized families of polynomials. J. Symbolic Comput. 43,304--309, 2008. |
ACL | ||
| 2007 | Louboutin Stéphane. Simple proofs of the Siegel-Tatuzawa and Brauer-Siegel theorems. Colloq. Math. 108, 277--283, 2007. |
ACL | |
| Louboutin Stéphane, Rivat Joël, Sarkozy Andras. On a problem of D. H. Lehmer. Proc. Amer. Math. Soc. 135, 969--975, 2007. |
ACL | ||
| Louboutin Stéphane. Efficient computation of root numbers and class numbersof parametrized families of real abelian number fields. Math. Comp. 76, 455--473, 2007. |
ACL | ||
| 2006 | Louboutin Stéphane. The class-number one problem for some real cubic number fields with negative discriminants. J. Number Theory 121, 30--39, 2006. |
ACL | |
| Louboutin Stéphane. Lower bounds for relative class numbers of imaginary abelian number fields and CM-fields. Acta Arith. 121, 199--220, 2006. |
ACL | ||
| 2005 | Louboutin Stéphane. On the use of explicit bounds on residues of Dedekind zeta functions taking into account the behavior of small primes. J. Théor. Nombres de Bordeaux 17, 559--573, 2005. |
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| Louboutin Stéphane. Explicit upper bounds for the residues at s=1 of the Dedekind zeta functions of some totally real number fields. Arithmetic, geometry and coding theory (AGCT 2003), 171--178, Sémin. Congr., 11, Soc. Math. France, Paris, 2005. |
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| Louboutin Stéphane. The Brauer-Siegel theorem. J. London Math. Soc. (2) 72, no. 1, 40--52, 2005. |
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| 2004 | Louboutin Stéphane. Class numbers of real cyclotomic fields. Publ. Math. Debrecen, 64, 451--461, 2004. |
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Louboutin Stéphane, Yang H.-S., Kwon S.-H. |
4,2 M |
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| Louboutin Stéphane. The simplest quartic fields with ideal class groups of exponents $\le 2$. J. Math. Soc. Japan, 56, 717--727, 2004. |
347 k |
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| Louboutin Stéphane. Numerical evaluation at negative integers of the Dedekind zeta functions of totally real cubic number fields. Algorithmic Number Theory (University of Vermont, 2004), Lectures Notes in Computer Science, 3076, 318--326, 2004. |
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| Louboutin Stéphane. Remarks on S. Chowla's hypothesis implying that $L(s,\chi )>0$ for $s>0$ and for real characters $\chi$. The Fields Institute Communications Series; Primes and Misdemeanours: Lectures in Honour of the Sixtieth Birthday of Hugh Cowie Williams}, Fields Institute Communications, 41, 283--291, 2004. |
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| Louboutin Stéphane. Explicit upper bounds for $\vert L(1,\chi)\vert $ for primitive characters $\chi$. Q. J. Math. 55, no. 1, 57--68, 2004. |
95 k |
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| Louboutin Stéphane. Explicit upper bounds for values at s=1 of Dirichlet L-series associated with primitive even characters. J. Number Theory, 104, 118--131, 2004. |
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| 2003 | Louboutin Stéphane. Explicit lower bounds for residues at s=1 of Dedekind zeta functions and relative class numbers of CM-fields. Trans. Amer. Math. Soc. 355, 3079--3098, 2003. |
551 k |
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| Louboutin Stéphane. Note on a hypothesis implying the non-vanishing of Dirichlet L-series L(s,\chi ) for s>0 and real characters \chi. Colloq. Math.,96, 207--212, 2003. |
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| Louboutin Stéphane, Okazaki
Ryotaro. Exponents of the ideal class groups of CM number fields. Math. Z. 243, 155--159, 2003. |
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| 2002 | Boutteaux Gérard,
Louboutin Stéphane. The class number one problem for some non-normal sextic CM-fields. Part 2. Acta Math. Inform. Univ. Ostraviensis 10, 3--23, 2002. |
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| Louboutin Stéphane. Newblock Computation of class numbers of quadratic number fields. Math. Comp. 71, 1735--1743, 2002. |
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| Louboutin Stéphane. Efficient computation of class numbers of real abelian number fields. Lectures Notes in Computer Science 2369, 134--147, 2002. |
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| Louboutin Stéphane. Majorations explicites de $\vert L(1,\chi)\vert $. IV [Explicit upper bounds on $\vert L(1,\chi)\vert $. IV] C. R. Acad. Sci. Paris Sér. I Math. 334, no. 8, 625--628, 2002. |
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| Louboutin Stéphane. The exponent three class group problem for some real cyclic cubic number fields. Proc. Amer. Math. Soc. 130, 353-361 (electronic), 2002. |
185 k |
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| Louboutin Stéphane. Explicit upper bounds for |L(1, Acta Arithmetica 101, 1-18, 2002. |
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| Boutteaux Gérard, Louboutin
Stéphane. The class number one problem for some non-normal sextic CM-fields. Part 1. Analytic number theory (Beijing/Kyoto, 1999), 27--37, Dev. Math., 6, Kluwer Acad. Publ., Dordrecht, 2002. |
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| 2001 | Louboutin Stéphane. Computation of class numbers of quadratic number fields. Math. Comp. 71, no. 240, 1735--1743 (electonic), november 2001. |
341 k |
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| Louboutin Stéphane. The mean value of |L(k, Colloquium math. 90, 69--76, 2001. |
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| Louboutin Stéphane. Explicit upper bounds for residues of Dedekind zeta functions and values of L-functions at s=1, and explicit lower bounds for relative class numbers of CM-fields. Canadian J. Math. 53 (6), 1194--1222, 2001. |
256 k |
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| Louboutin Stéphane. Class number and class group problems for some non-normal totally real cubic number fields. Manuscripta Math. 106, 411--427, 2001. |
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Louboutin Stéphane. |
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| Louboutin Stéphane. Computation of L(0, Nagoya Math. J. 161, 171--191, 2001. |
191 k |
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| 2000 | Louboutin Stéphane. Formulae for some Artin root numbers. Tatra Mountains Mathematical Publications 20, 19--29, 2000. |
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| Louboutin Stéphane. Explicit bounds for residues of Dedekind zeta functions, values of L-functions at s = 1 and relative class numbers. J. Number Theory 85, n° 2, 263--282, 2000 |
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| Louboutin Stéphane. Fast computation of relative class numbers of CM-fields. Algorithmic Number Theory (Leiden, The Netherlands, 2000), 413--422, Lecture Notes in Comput. Sci., 1838, Springer, Berlin, 2000 |
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| Lefeuvre Yann and Louboutin
Stéphane. The class number one problem for the dihedral CM-fields. Algebraic number theory and Diophantine analysis (Graz, 1998), 249--275, de Gruyter, Berlin, 2000 |
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| Louboutin Stéphane. Computation of relative class numbers of CM-fields by using Hecke L-functions. Math. Comp. 69, no. 229, 371--393, 2000 |
392 k |
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| Louboutin Stéphane
and Park Young-Ho. Class number problems for dicyclic CM-fields. Publ. Math. Debrecen 57, no. 3-4, 283--295, 2000 |
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| Louboutin Stéphane. Hasse unit indices of dihedral octic CM-fields. Math. Nachr. 215, 107--113, 2000 |
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| 1999 | Louboutin Stéphane. The nonquadratic imaginary cyclic fields of 2-power degrees with class numbers equal to their genus class numbers. Proc. Amer. Math. Soc. 127, no. 2, 355--361, 1999 |
229 k |
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| Louboutin Stéphane and Okazaki
Ryotaro. Determination of all quaternion CM-fields with ideal class groups of exponent 2. Osaka J. Math. 36, no. 2, 229--257, 1999 |
2,2 M |
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| Louboutin Stéphane. On the mean value of |L(1, Proc. Japan Acad. Ser. A Math. Sci. 75, no. 7, 143--145, 1999 |
161 k |
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| Louboutin Stéphane. The class number one problem for the dihedral and dicyclic CM-fields. Colloq. Math. 80, no. 2, 259--265, 1999 |
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| Lemmermeyer F., Louboutin
Stéphane and Okazaki Ryotaro. The class number one problem for some non-abelian normal CM-fields of degree 24. J. Théor. Nombres Bordeaux 11, no. 2, 387--406, 1999. |
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| Louboutin Stéphane and Mollin
Richard A. Solutions to x2-Dy2=Q. Number theory (Ottawa, ON, 1996), 265--280, CRM Proc. Lecture Notes, 19, Amer. Math. Soc., Providence, RI, 1999 |
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| Louboutin Stéphane and Park
Young-Ho and Lefeuvre Yann. Construction of the real dihedral number fields of degree 2p. applications. Acta Arith. 89, no. 3, 201--215, 1999 |
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| Louboutin Stéphane. Sur le calcul numérique des constantes des équations fonctionnelles des fonctions L associées aux caractères impairs [On the Artin root numbers of the L-functions associated with odd Dirichlet characters of prime conductor]. C. R. Acad. Sci. Paris Sér. I Math. 329, no. 5, 347--350, 1999 |
| 1998 | Louboutin Stéphane. Majorations explicites du résidu au point 1 des fonctions zêta de certains corps de nombres [Explicit upper bounds of the residue at the point 1 of zeta functions of certain number fields]. J. Math. Soc. Japan 50, no. 1, 57--69, 1998 |
1 M |
| Louboutin Stéphane. The imaginary cyclic sextic fields with class numbers equal to their genus class numbers. Colloq. Math. 75, no. 2, 205--212, 1998 |
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| Louboutin Stéphane. Computation of relative class numbers of imaginary abelian number fields. Experiment. Math. 7, no. 4, 293--303, 1998 |
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Louboutin Stéphane and Okazaki
Ryotaro. |
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| Louboutin Stéphane and Newman
M. On the diophantine equation XY + YZ + ZX = D. Acta Math. et Inf. Universitatis Ostraviensis 6, 155--158, 1998 |
380 k |
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| Louboutin Stéphane. Upper bounds on |L(1, Canad. J. Math. 50, no. 4, 794--815, 1998 |
147 k |
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| Louboutin Stéphane. Computation of relative class numbers of imaginary cyclic fields of 2-power degrees. Algorithmic number theory (Portland, OR, 1998), 475--481, Lecture Notes in Comput. Sci., 1423, Springer, Berlin, 1998 |
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| 1997 | Louboutin Stéphane. Resultants of cyclotomic polynomials. Publ. Math. Debrecen 50, no. 1-2, 75--77, 1997 |
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| Louboutin Stéphane. Powerful necessary conditions for class number problems. Math. Nachr. 183, 173--184, 1997 |
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| Louboutin Stéphane and Okazaki
Ryotaro and Olivier Michel. The class number one problem for some non-abelian normal CM-fields. Trans. Amer. Math. Soc. 349, no. 9, 3657--3678, 1997 |
387 k |
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| Louboutin Stéphane. Class-group problems for cubic number fields. Japan. J. Math. (N.S.) 23, no. 2, 365--378, 1997 |
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| Louboutin Stéphane. Determination of all imaginary abelian number fields with relative class numbers any 2-power, which are composita of imaginary abelian number fields with prime power conductors. Number theory (Liptovsky Jan, 1995). Tatra Mt. Math. Publ. 11, 43--58, 1997 |
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| Louboutin Stéphane. CM-fields with cyclic ideal class groups of 2-power orders. J. Number Theory 67, no. 1, 1--10, 1997 |
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| Louboutin Stéphane. The class number one problem for the non-abelian normal CM-fields of degree 16. Acta Arith. 82, no. 2, 173--196, 1997 |
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| Louboutin Stéphane. Computation of relative class numbers of CM-fields. Math. Comp. 66, no. 219, 1185--1194, 1997 |
224 k |
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| 1996 | Louboutin Stéphane. Corps quadratiques à corps de classes de Hilbert principaux et à multiplication complexe [Quadratic fields with principal Hilbert class fields and complex multiplication]. Acta Arith. 74, no. 2, 121--140, 1996 |
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| Louboutin Stéphane. A computational technique for determining relative class numbers of CM-fields. Algorithmic number theory (Talence, 1996), 213--216, Lecture Notes in Comput. Sci., 1122, Springer, Berlin, 1996 |
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| Louboutin Stéphane. Determination of all quaternion octic CM-fields with class number 2. J. London Math. Soc. (2) 54, no. 2, 227--238, 1996 |
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| Louboutin Stéphane. A finiteness theorem for imaginary abelian number fields. Manuscripta Math. 91, no. 3, 343--352, 1996 |
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| Louboutin Stéphane. Majorations explicites de |L(1, C. R. Acad. Sci. Paris Sér. I Math. 323, no. 5, 443--446, 1996 |
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| Louboutin Stéphane. The CM-fields with class number one which are Hilbert class fields of quadratic fields. Proc. Japan Acad. Ser. A Math. Sci. 72, no. 1, 16--19, 1996 |
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| 1995 | Louboutin Stéphane and Mollin
Richard A. Bounds for class numbers of quadratic orders. Computational algebra and number theory (Sydney, 1992), 153--158, Math. Appl., 325, Kluwer Acad. Publ., Dordrecht, 1995 |
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| Louboutin Stéphane. Une remarque sur l'exposant du groupe des classes d'idéaux des corps cubiques [On the exponents of the ideal class groups of pure cubic fields]. C. R. Acad. Sci. Paris Sér. I Math. 320, no. 10, 1161--1163, 1995 |
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| Louboutin Stéphane. Class-number problems for cubic number fields. Nagoya Math. J. 138, 199--208, 1995 |
767 k |
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| Louboutin Stéphane. Calcul du nombre de classes des corps de nombres [Computing the class number of number fields]. Pacific J. Math. 171, no. 2, 455--467, 1995 |
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| Louboutin Stéphane. Determination of all nonquadratic imaginary cyclic number fields of 2-power degrees with ideal class groups of exponents Math. Comp. 64, no. 209, 323--340, 1995 |
1,67 M |
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| 1994 | Louboutin Stéphane. Correction : "Some exact formulas for averages of Dirichlet L-functions" [Canad. Math. Bull. 36 (1993), no. 2, 190--196; MR 94c:11077]. Canad. Math. Bull. 37, no. 1, 89, 1994 |
62 k |
| Louboutin Stéphane. On the class number one problem for nonnormal quartic CM-fields. Tôhoku Math. J. (2) 46, no. 1, 1--12, 1994 |
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| Louboutin Stéphane. Lower bounds for relative class numbers of CM-fields. Proc. Amer. Math. Soc. 120, no. 2, 425--434, 1994 |
863 k |
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| Louboutin Stéphane. Calcul des nombres de classes relatifs de certains corps de classes de Hilbert [Computation of the relative class numbers of some Hilbert class fields]. C. R. Acad. Sci. Paris Sér. I Math. 319, no. 4, 321--325, 1994 |
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| Louboutin Stéphane and Okazaki
Ryotaro. Determination of all non-normal quartic CM-fields and of all non-abelian normal octic CM-fields with class number one. Acta Arith. 67, no. 1, 47--62, 1994 |
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| Louboutin Stéphane. The exponent 2-class-group problem for non-Galois over Q quartic fields that are quadratic extensions of imaginary quadratic fields. J. Number Theory 49, no. 2, 133--141, 1994 |
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| Louboutin Stéphane and Okazaki
Ryotaro. Determination of all quaternion octic CM-fields with ideal class groups of exponents 2. Abridged version. Proc. Japan Acad. Ser. A Math. Sci. 70, no. 2, 56--61, 1994 |
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| 1993 | Louboutin Stéphane. Minorations d'unités fondamentales---applications [Lower bounds for fundamental units---applications]. Nagoya Math. J. 130, 1--18, 1993 |
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| Louboutin Stéphane and Mollin
Richard A. and Williams H. C. Class groups of exponent two in real quadratic fields. Advances in number theory (Kingston, ON, 1991), 499--513, Oxford Sci. Publ., Oxford Univ. Press, New York, 1993 |
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| Louboutin Stéphane. Majorations explicites de |L(1, C. R. Acad. Sci. Paris Sér. I Math. 316, no. 1, 11--14, 1993 |
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| Louboutin Stéphane. Zéros réels des fonctions zêta et minorations de nombres de classes. Application à la majoration des discriminants de certains types de corps de nombres [Real zeros of zeta functions and lower bounds for class numbers. Application to upper bounds for discriminants of certain types of number fields]. Séminaire de Théorie des Nombres, Paris, 1991--92, 135--152, Progr. Math., 116, Birkhäuser Boston, Boston, MA, 1993 |
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| Louboutin Stéphane. Calcul des nombres de classes relatifs : application aux corps octiques quaternioniques ˆ multiplication complexe [Computation of relative class numbers of CM-fields : application to octic quaternion CM-fields]. C. R. Acad. Sci. Paris Sér. I Math. 317, no. 7, 643--646, 1993 |
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| Louboutin Stéphane. Quelques formules exactes pour des moyennes de fonctions L de Dirichlet [Some exact formulas for averages of Dirichlet L-functions]. Canad. Math. Bull. 36, no. 2, 190--196, 1993 |
476 k |
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| Barrucand Pierre and Louboutin
Stéphane. Majoration et minoration du nombre de classes d'idéaux des corps réels purs de degré premier [Upper and lower bounds for the ideal class number of purely real fields of first degree]. Bull. London Math. Soc. 25, no. 6, 533--540, 1993 |
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| Barrucand Pierre and Louboutin
Stéphane. Minoration au point 1 des fonctions L attachées à des caractères de Dirichlet [Lower bound at the point 1 of L-functions associated with Dirichlet characters]. Colloq. Math. 65, no. 2, 301--306, 1993 |
156 k |
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| 1992 | Louboutin Stéphane. L-functions and class numbers of imaginary quadratic fields and of quadratic extensions of an imaginary quadratic field. Math. Comp. 59, no. 199, 213--230, 1992 |
1,32 M |
| Louboutin Stéphane. Détermination des corps quartiques cycliques totalement imaginaires à groupe des classes d'idéaux d'exposant Manuscripta Math. 77, no. 4, 385--404, 1992 |
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| Louboutin Stéphane. Norme relative de l'unité fondamentale de certains corps biquadratiques et parité des longueurs de cycles d'idéaux réduits [Relative norm of the fundamental unit of some biquadratic fields and parity of the lengths of cycles of reduced ideals]. J. Number Theory 42, no. 3, 361--368, 1992 |
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| Louboutin Stéphane and Mollin
Richard A. and Williams H. C. Class numbers of real quadratic fields, continued fractions, reduced ideals, prime-producing quadratic polynomials and quadratic residue covers. Canad. J. Math. 44, no. 4, 824--842, 1992 |
1,92 M |
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| Louboutin Stéphane. Détermination des corps quartiques cycliques totalement imaginaires à groupes des classes d'idéaux d'exposant C. R. Acad. Sci. Paris Sér. I Math. 315, no. 3, 251--254, 1992 |
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Louboutin Stéphane. |
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| 1991 | Louboutin Stéphane. Addendum: "Quadratic extensions of the field of rationals, the Gaussian field or the field of cube roots of unity of caliber 1". Manuscripta Math. 71, no. 2, 223, 1991 |
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| Louboutin Stéphane. Extensions du théorème de Frobenius-Rabinovitsch [Extensions of the Frobenius-Rabinovich theorem]. C. R. Acad. Sci. Paris Sér. I Math. 312, no. 10, 711--714, 1991 |
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| Louboutin Stéphane. Majoration au point 1$des fonctions L associées aux caractères de Dirichlet primitifs, ou au caractère d'une extension quadratique d'un corps quadratique imaginaire principal [Upper bound at the point 1 of L-functions associated with primitive Dirichlet characters or with the character of a quadratic extension of a principal imaginary quadratic field]. J. Reine Angew. Math. 419, 213--219, 1991 |
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| Louboutin Stéphane. Norme relative de l'unité fondamentale et 2-rang du groupe des classes d'idéaux de certains corps biquadratiques [Relative norm of the fundamental unit and two-rank of the ideal class group of certain biquadratic fields]. Acta Arith. 58, no. 3, 273--288, 1991 |
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| 1990 | Louboutin Stéphane. Les extensions quadratiques du corps des rationnels, ou du corps de Gauss, ou du corps des racines cubiques de l'unité de calibres 1 [Quadratic extensions of the field of rationals, the Gaussian field or the field of cube roots of unity of caliber 1]. Manuscripta Math. 69, no. 4, 387--410, 1990 |
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| Louboutin Stéphane. Prime producing quadratic polynomials and class-numbers of real quadratic fields. Canad. J. Math. 42, no. 2, 315--341, 1990 |
1,4 M addentum |
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Louboutin Stéphane. |
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Louboutin Stéphane. |
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| Louboutin Stéphane. Le groupe des classes ambiges (au sens strict) [The group of ambiguous classes (in the strict sense)]. Séminaire de Théorie des Nombres, Paris 1987--88, 147--153, Progr. Math., 81, Birkhäuser Boston, Boston, MA, 1990 |
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| 1989 | Louboutin Stéphane. Groupes des classes d'idéaux triviaux [Trivial ideal class groups]. Acta Arith. 54, no. 1, 61--74, 1989 |
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Louboutin Stéphane. |
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| 1988 |
Louboutin Stéphane. |