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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Analytische Untersuchungen über bewertete Körper

Loonstra, Frans. January 1941 (has links)
Thesis--Universiteit van Amsterdam. / Published without thesis statement. Includes bibliographical references (p. [101]).
12

On the Galois groups of certain algebraic number fields

Straight, Byron William January 1949 (has links)
This thesis is concerned with the Galois groups of the root fields of the equations x[superscript]P - a = 0, (x[superscript]p - a)•(x[superscript]q - b) = 0 and (x[superscript]q - b) [superscript]p - a = 0, where p and q are distinct primes, and a and b are rationals. The correspondence of subflelds and subgroups is studied for each of the three cases. The field [formula omitted] formed by adjoining to the rational field F the elements [formula omitted and ⍺, a primitive pth root of unity, is shown to be the root field of x[superscript]p - a = 0, normal over F of degree p(p-l). The Galois group of [formula omitted] over F Is found to be the metacyclic group constructed from generators s and t subject to relations s[superscript]p = 1, t[superscript]p ⁻¹ = 1 and st = ts[superscript]r, where r is a primitive root modulo p, and where s is the automorphism which maps [formula omitted] onto [formula omitted] while t is the automorphism which maps ⍺. onto ⍺ [superscript]r. Various subgroups and corresponding subflelds are studied and nine theorems proven on their correspondences, illustrated with a partial lattice diagram. The field [formula omitted]where β is a primitive qth root of unity is shown to be the root field of (x[superscript]p - a)-(x[superscript]q - b) = 0 and the Galois group is proven to be the direct product of two of the type for the field [formula omitted]. The field [formula omitted] for i = 1, 2, 3 ... p, which is the root field of the equation (x[superscript]q - b) [superscript]p - a = 0 is studied and shown to have degree pq[superscript]p-(p-1)•(q-1). The Galois group is found to be generated by four independent generators: s, t, u, v subject to eleven defining relations. Here the elements s, t, u, v are the automorphisms which respectively map [formula omitted] onto [formular omitted], ⍺ onto ⍺[superscript r, [formula omitted] onto [formula omitted] β onto β [superscript]where w is a primitive root modulo q. A partial lattice diagram illustrates the correspondence of subgroups and subflelds. The thesis was carried out under the supervision of Dr. D. C. Murdoch. / Science, Faculty of / Mathematics, Department of / Graduate
13

Bernoulli convolutions associated with some algebraic numbers.

January 2010 (has links)
Kwok, Tsz Chiu. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 43-45). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.6 / Chapter 1.1 --- Historical remarks and main results --- p.6 / Chapter 1.2 --- Structure of the thesis --- p.8 / Chapter 2 --- Basic properties --- p.10 / Chapter 2.1 --- Existence of infinite convolution --- p.10 / Chapter 2.2 --- Properties --- p.16 / Chapter 2.3 --- Law of pure type --- p.17 / Chapter 3 --- Some results related to pure singularity --- p.20 / Chapter 3.1 --- The Pisot-Vijayaraghavan numbers --- p.20 / Chapter 3.2 --- The Salem numbers --- p.22 / Chapter 3.3 --- The weak separation condition --- p.23 / Chapter 4 --- A proof of almost everywhere absolute continuity --- p.30 / Chapter 5 --- Other results and problems --- p.37 / Chapter 5.1 --- Entropy of Bernoulli convolutions --- p.37 / Chapter 5.2 --- Dimensions --- p.40 / Chapter 5.3 --- Non PV numbers with bad behavior --- p.41 / Chapter 5.4 --- Open problems --- p.41 / Bibliography --- p.43
14

Über die Zerlegung einer Primzahl in einem komponierten Körper

Cameron, Jessie F. January 1912 (has links)
Thesis (doctoral)--Universität Marburg, 1911. / Vita. Includes bibliographical references.
15

The ideals in the algebra of generalized quaternions over the field of rational numbers

Wyant, Emily Kathryn, January 1939 (has links)
Thesis (Ph. D.)--University of Missouri, 1929. / Vita. "Lithoprinted." Includes bibliographical references (p. 27).
16

GENERALIZED QUATERNION ALGEBRAS OVER ALGEBRAIC NUMBER FIELDS

Irwin, Robert Cook, 1929- January 1963 (has links)
No description available.
17

A study of some extensions of a quadratic field

Marsh, Donald Burr, 1926- January 1948 (has links)
No description available.
18

On a generalization of a theorem of Stickelberger

Rideout, Donald E. (Donald Eric) January 1970 (has links)
No description available.
19

Solvability of equations by radicals /

Brown, Robert Wallace. January 1952 (has links)
Thesis (M.S.)--Oregon State College, 1952. / Typescript. Includes bibliographical references (leaf 21). Also available on the World Wide Web.
20

Remarkable sets of algebraic numbers in complete fields.

Smyth, Christopher James. January 1969 (has links) (PDF)
Thesis (M.A. 1971) from the Department of Mathematics, University of Adelaide.

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