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International Research Project:

Towers of p-Class Fields

over Algebraic Number Fields

supported by the Austrian Science Fund (FWF): P 26008-N25

Chronicle and Time Schedule
August 2013
Aug 09: Groups St Andrews 2013, Fife, Scotland Presentation Abstract , Finite 3-groups as viewed from class field theory
Aug 19: Generalization of our lecture at "Groups Saint Andrews 2013" Preprint PC-Presentations for infinite periodic sequences of 3-groups G, G/G' ≅ (9,3)
Aug 22: Inspired by some presentations at "Groups St Andrews 2013": Preprint Complete Normal Lattice of metabelian p-groups G, G/G' ≅ (p,p), k(G) = 0
Aug 25: Complete Proposal for the CIMPA - UNESCO Course "CIMPA 2015 Oujda" Summary Computational Number Theory and its Applications in Cryptography
Aug 30: French translation of the CIMPA - UNESCO Lectures "CIMPA 2015 Oujda" Resumé Théorie des Nombres Algorithmique et Applications en Cryptographie
September 2013
Sep 01: Official Start of our International Research Project FWF: P 26008-N25 Towers of p-Class Fields over Algebraic Number Fields
Sep 23: ÖMG and DMV Congress 2013, Innsbruck, Austria Presentation Abstract , 3-class field towers of exact length 3
October 2013
Oct 07: Using ANUPQ and Magma for descendant generation of <243,3> of type (3,3) to get the complete overview of transfer kernel types in section F
Oct 20: Determining the index of relative units of pure quartic fields Q(D1/4) by means of calculating the relative norms of a fundamental system of units
Oct 25: Units of pure quartic fields Q(p1/4) with p ≡ 7 (mod 16) Math. Rev. 3059109 of a paper by A. Aguilar-Zavoznik and M. Pineda-Ruelas, in Far East J. Math. Sci.
November 2013
Nov 03: Using ANUPQ and Magma for descendant generation of <729,9…12> of type (9,3) as an important supplement to the descendant trees of <729,13…21>
Nov 06: Using Pari/GP and Magma for the classification of pure cubic fields Q(D1/3) into principal factorization types, according to Barrucand / Cohn
Nov 17: Classification into principal factorization types of pure quintic fields Q(D1/5) by means of metacyclic class number relations and relative norms of fundamental units
December 2013
Dec 18: West Coast Number Theory 2013, Asilomar, Monterey, California Presentation Class towers and capitulation over quadratic fields
January 2014
Jan 31: On the strongly ambiguous classes of k|Q(i) where k = Q((2p1p2)1/2,i) Report of a paper by A. Azizi, A. Zekhnini, and M. Taous, in Asian-European Journal of Mathematics
February 2014
Feb 28: A new computational approach to ideal theory in number fields Math. Rev. 3105943 of a paper by J. Guàrdia, J. Montes, and E. Nart, in Found. Comput. Math.
March 2014
Mar 27: Annual Report 2013 for the Austrian Science Fund (FWF) Report Stand-alone research project P 26008-N25
April 2014
Apr 12: Principalization of 2-class groups of type (2,2,2) of biquadratic fields k = Q((-1)1/2,d1/2), d = p1p2q in cooperation with A. Azizi, A. Zekhnini, and M. Taous, in IJNT
May 2014
May 21: Descendant trees of finite p-groups Article Nuclear rank, multifurcation, coclass graphs, parametrized pc-presentations
May 28: Strategy of pattern recognition via Artin transfers Preprint Arithmetical applications of: commutative Artin diagram, inheritance from quotients
June 2014
Jun 16: Artin transfers and structured descendant trees Article Inheritance from quotients, stabilization criteria, and pattern recognition
July 2014
Jul 05: Principalization in algebraic number theory Article Artin reciprocity law, commutative Artin diagram, and Galois cohomology
Jul 12: On the Hilbert 2-class field tower of some abelian 2-extensions of Q Math. Rev. 3165518 of a paper by A. Azizi and A. Mouhib, in Czechoslovak Math. J.
Jul 19: Complex quadratic fields of type (3,3,3) Preprint Infinite 3-class tower, transfer kernels and targets, and second 3-class group
Jul 31: p-group generation algorithm Article P-covering group, nucleus, allowable subgroups, orbits, step sizes
August 2014
Aug 27: Structural interpretation of composite Artin transfers Article Wreath product of symmetric groups Sm and Sn with respect to {1,…,n}
September 2014
Sep 16: Completely new perspective of the population of coclass trees T2(R) with roots R = <243,6>, <243,8>, based on computations of IPADs by M. R. Bush and TKTs by D. C. Mayer
Sep 18: Entering uncharted waters by construction of descendant trees T(R) with roots R = <81,2>, <81,5>, consisting of 3-groups G with abelianization G/G' = (9,9) or (27,3)
Sep 19: Endowing descendant trees T(R), R = <81,2> and <81,5>, with structure by implementation of the Artin transfers for p-groups G having G/G' = (p2,p2) or (p3,p)
October 2014
Oct 07: Signed fundamental domains for totally real number fields Math. Rev. 3198753 of a paper by F. Diaz y Diaz and E. Friedman, in Proc. London Math. Soc.
Oct 23: Principalization algorithm via class group structure CEDRAM J. Théor. Nombres Bordeaux 26 (2014), no. 2, 415 - 464.
November 2014
Nov 13: Quadratic p-ring spaces for counting dihedral fields World Scientific Int. J. Number Theory 10 (2014), no. 8, 2205 - 2242, DOI 10.1142/S1793042114500754.
December 2014
Dec 08: Principalization of 2-class groups of type (2,2,2) of biquadratic fields Q((p1p2q)1/2,(-1)1/2) World Scientific Int. J. Number Theory 11 (2015), no. 4, 1177-1215, DOI 10.1142/S1793042115500645, in cooperation with A. Azizi, A. Zekhnini and M. Taous.
Dec 10: The group Gal(k3(2)|k) for k = Q((-3)1/2,d1/2) of type (3,3) IJNT in cooperation with M. Talbi, A. Derhem, Mm. Talbi and A. Azizi
January 2015
Jan 27: Periodic bifurcations in descendant trees of finite p-groups Adv. Pure Math. 5 (2015), no. 4, 162-195, Special Issue on Group Theory, DOI 10.4236/apm.2015.54020
Jan 30: Coclass of Gal(k2(2)|k) for some fields k = Q((p1p2q)1/2,(-1)1/2) with 2-class group of type (2,2,2) Report by A. Azizi, A. Zekhnini, and M. Taous, in Journal of Algebra and its Applications
February 2015
Feb 18: Index-p abelianization data of p-class tower groups Adv. Pure Math. 5 (2015), no. 5, 286-313, Special Issue on Number Theory and Cryptography, DOI 10.4236/apm.2015.55029
Feb 25: Annual Report 2014 for the Austrian Science Fund (FWF) Report Stand-alone research project P 26008-N25
March 2015
Mar 08: Descendants of <64,75> as second 2-class groups of biquadratic Dirichlet fields Q((-1)1/2,d1/2) Special instances of the cases A and D by A. Azizi and M. Taous
Mar 25: Higher Newton polygons and integral bases Math. Rev. 3276340 of a paper by J. Guàrdia, J. Montes and E. Nart, in J. Number Theory
April 2015
May 2015
May 18: École de Recherche CIMPA UNESCO 2015 Oujda, Morocco La théorie algorithmique des nombres (lectures and exercises)
June 2015
July 2015
Jul 09: 29th Journées Arithmétiques (JA) 2015, Debrecen, Hungary Presentation Index-p abelianization data of p-class tower groups
Jul 21: 1st International Conference on Groups and Algebras (ICGA) 2015, Shanghai, China Presentation Invited Lecture on Periodic sequences of p-class tower groups
August 2015
Aug 31: 22nd Czech and Slovak International Conference on Number Theory (CSICNT) 2015, Liptovský Ján, Slovakia Presentation New number fields with known p-class tower
September 2015
Sep 30: New number fields with known p-class tower Tatra Mountains Math. Publ. 64 (2015), 21-57
October 2015
Oct 18: Induced homomorphism (quotient group) Article induced homomorphism, characteristic subgroups, GI-automorphisms, functorial properties
November 2015
Nov 12: Grunwald-Wang theorem, an effective version Math. Rev. 3368167 of a paper by S. Wang, in Sci. China Math.
Nov 24: Artin transfer patterns on descendant trees of finite p-groups Adv. Pure Math. 6 (2016), no. 1, Special Issue on Group Theory Research
December 2015
January 2016
February 2016
Feb 18: Annual Report 2015 for the Austrian Science Fund (FWF) Report Stand-alone research project P 26008-N25
Feb 28: On class groups of imaginary quadratic fields Math. Rev. 3404031 of a paper by A. Wiles, in J. London Math. Soc.
March 2016
Mar 13: Recent Progress in Determining p-Class Field Towers Abstract for the International Colloquium on Algebra, Number Theory, Cryptography and Information Security in Taza, Morocco, 2016
Mar 16: Precise Artin Patterns (kernels and targets of Artin transfers) AP=(TKT,TTT) of all 34631 real quadratic fields with discriminant d < 108, by far most extensive computation up to now
April 2016
Apr 07: Sensational discovery of the first 5-CLASS TOWER OF EXACT LENGTH 3 Priority Claim Occurrence for the real quadratic fields with discriminants d = 3812377 and 19621905
Apr 29: Sensational first realization of the 5-Sylow subgroup of the symmetric group of degree 25 as 2nd 5-class group Occurrence for the real quadratic field with discriminant d = 27186289
May 2016
May 30: Recent Progress in Determining p-Class Field Towers Invited Lecture for the International Colloquium on Algebra, Number Theory, Cryptography and Information Security in Taza, Morocco, 2016
June 2016
Jun 07: Precise Artin Patterns (kernels and targets of Artin transfers) AP=(TKT,TTT) of all 24476 complex quadratic fields with discriminant -107 < d, by far most extensive computation up to now
Jun 15: Annihilator Ideals of Two-Generated Metabelian p-Groups Article establishing the general templates S,W,Y and verifying the specializations L,X,Z,R,T,V
Jun 25: Fork Topology, Contestants, and Shafarevich Covers cov(G,K) of metabelian 3-groups G32K with Kernel Type F and Coclass 6 over quadratic fields K
Jun 28: 18th Postgraduate Group Theory Conference Imperial College, London Presentation Three-Stage Towers of 5-Class Fields, London, UK
July 2016
Jul 25: 2nd International Conference on Groups and Algebras ICGA, Suzhou Invited Lecture on p-Capitulation over Number Fields with p-Class Rank Two, Suzhou, China
August 2016
Aug 09: 5-Principalization Type and Second 5-Class Group Gal(F52M/M) of all Cyclic Quartic 5-Mirror Fields M=Q((ζ-ζ-1)d1/2), d < 10000, with 5-Class Group (5,5)
Aug 20: Long desired discovery of a Second 5-Class Group of Elevated Coclass cc(G52M) ≥ 3 for the Cyclic Quartic 5-Mirror Field M=Q((ζ-ζ-1)d1/2) with d = 8689
Aug 31: Official End of our International Research Project FWF: P 26008-N25 Towers of p-Class Fields over Algebraic Number Fields
September 2016
Sep 07: 3-Principalization Type and Second 3-Class Group Gal(F32K/K) of all Cyclic Cubic Fields K with 3-Class Group (3,3) and Conductor c < 100000
Sep 08: Sensational Discovery of the First Three-Stage Tower F3K/K of 3-Class Fields over a Cyclic Cubic Field K with Conductor 28791=9*7*457
October 2016
November 2016
Nov 11: 1st International Colloquium of Algebra, Number Theory, Cryptography and Information Security ANCI, Taza Invited Keynote on Recent Progress in Determining p-Class Field Towers, Taza, Morocco

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