000 02278 a2200265 4500
020 _a9783319163598
050 4 _aQA155
082 0 4 _a512
090 _c31578
_d31578
100 1 _aTignol, Jean-Pierre
546 _aeng
245 1 0 _aValue functions on simple algebras, and associated graded rings
_cJean-Pierre Tignol, Adrian R. Wadworth
260 _aheidelberg, New York, Dordrecht:
_bSpringer
_c2015
300 _a644 p.
_c24 cm
490 1 _aSpringer Monographs in Mathematics
500 _aBibliografie p. 621 Index p. 635 Cuprinde Exercitii si Note la sfarsitul fiecarui capitol
505 0 _aValuations on Division Rings -- Graded Algebra -- Value Functions -- Existence and Fundamental Properties of Gauges -- Graded and Valued Field Extensions -- Brauer Groups -- Total Ramifcation -- Division Algebras over Henselian Fields -- Subfields and Splitting Fields of Division Algebras -- Indecomposable Division Algebras -- Computation of SK1(D) -- The Essential Dimension of Central Simple Algebras.
520 _aThis monograph is the first book-length treatment of valuation theory on finite-dimensional division algebras, a subject of active and substantial research over the last forty years. Its development was spurred in the last decades of the twentieth century by important advances such as Amitsur's construction of noncrossed products and Platonov's solution of the Tannaka-Artin problem. This study is particularly timely because it approaches the subject from the perspective of associated graded structures. This new approach has been developed by the authors in the last few years and has significantly clarified the theory. Various constructions of division algebras are obtained as applications of the theory, such as noncrossed products and indecomposable algebras. In addition, the use of valuation theory in reduced Whitehead group calculations (after Hazrat and Wadsworth) and in essential dimension computations (after Baek and Merkurjev) is showcased. The intended audience consists of graduate students and research mathematicians.
650 0 _aAlgebra
650 0 _aRings (Algebra)
650 0 _aValuation theory
700 1 _aWadsworth, Adrian R.
830 0 _aSpringer Monographs in Mathematics
942 _aIMAR
_cCART
_k512
_sEP
999 _c31140
_d31140