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Showing 1 to 20 of 77 for “"Automorphisms."”.
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Modest Automorphisms of Presburger Arithmetic
… use a back-and-forth construction to obtain two automorphisms of sufficiently saturated models of Presburger arithmetic. These constructions are done first in the quotient of the Presburger structure by the integers (which is a divisible ordered abelian group with some added structure), and then …
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Group automorphisms of incidence algebras.
Let (P,≤) be an arbitrary partially ordered set and I(P) its incidence space. Then FI(P) denotes the associated finitary incidence algebra, where FI(P) = I(P) for locally finite posets (P,≤). We investigate the group of units U(FI(P)) of incidence algebras and its normal subgroups. This includes …
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Automorphisms and symbols in K(,2)
"Much of the work in algebraic K-theory today is devoted to the search for ""motivic cohomology."" This hoped-for cohomology theory of algebraic geometry should be analogous to the known singular homology groups of topology. In this work we consider Goodwillie and Lichtenbaum's candidate for …
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Automorphisms of free products of groups
… product of groups. I also show that symmetric automorphisms may be determined by their categorical properties and that they are in particular characteristic of the free product functor. This goes some way to explain their occurence in a range of situations. The final chapter is devoted to a …
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Automorphisms of Graph Curves on K3 Surfaces
… $K3$ surfaces. We use the properties of finite automorphisms of $\PP^1$ to examine what restrictions a given elliptic fibration imposes on the possible finite order non-symplectic automorphisms of the $K3$ surface. We also examine the fixed loci of these automorphisms, and construct an explicit …
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Finite Groups of Automorphisms of Infinite Groups
Made available in DSpace on 2014-12-14T13:09:38Z (GMT). No. of bitstreams: 1 7820935.pdf: 3053366 bytes, checksum: dedfb953c9ce6c7d8214706bc74fdbe7 (MD5) Previous issue date: 1978
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Automorphisms of the Projective Unimodular Unitary Group
Made available in DSpace on 2014-12-09T22:17:30Z (GMT). No. of bitstreams: 1 6612290.pdf: 3582019 bytes, checksum: 9d6e5b88d085280e6d44ed996bc7b3bf (MD5) Previous issue date: 1966
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DEGENERATIONS OF AUTOMORPHISMS ON IRREDUCIBLE HOLOMORPHIC SYMPLECTIC VARIETIES
… thesis is to study the degeneration of special automorphisms (termed non-symplectic) on certain families of irreducible holomorphic symplectic varieties (IHS varieties).\newline\newline In fact, the moduli space of smooth cubic threefolds is isomorphic to a moduli space $\mathcal{N}^{\rho, …
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On the Structure and Automorphisms of Finite Automata
Made available in DSpace on 2014-12-09T22:17:24Z (GMT). No. of bitstreams: 1 6604137.pdf: 2978525 bytes, checksum: 33be782eae316f93d8170b5d97efc8c0 (MD5) Previous issue date: 1965
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Automorphisms of the 4-Dimensional Unimodular Unitary Group
Made available in DSpace on 2014-12-09T22:17:43Z (GMT). No. of bitstreams: 1 6808225.pdf: 1791821 bytes, checksum: e9d2f17792e6e5f39fcd8bcbe5c23aa1 (MD5) Previous issue date: 1967
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Finite Groups of Automorphisms of Algebraic Function Fields
Made available in DSpace on 2014-12-05T21:50:11Z (GMT). No. of bitstreams: 1 5805487.pdf: 1929314 bytes, checksum: 9227ba3bbd12be598885441a06850952 (MD5) Previous issue date: 1958
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Motivic complexes and the K-theory of automorphisms
It has long been suspected that the conjectural motivic cohomology groups of a smooth variety X are related to the algebraic K-groups of X. Explicitly, it is expected that there is a spectral sequence whose terms are the motivic cohomology groups of X which converges to the algebraic K-groups of X. …
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Surfaces Isogenous to a Product: Their Automorphisms and Degenerations
In this thesis, I consider the automorphisms and stable degenerations of surfaces isogenous to a product. First I consider the action of the automorphisms on cohomology in the case where the group G is abelian. It is shown that, if the irregularity of the surface is larger than 1, the action of G …
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Some aspects of indiscernibility: Identities and extensions of automorphisms
Contains fulltext : mmubn000001_026636603.pdf (Publisher’s version ) (Open Access)
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Finite order automorphisms of Higgs bundles: theory and application
DSpace SAF Submission Ingestion Package generated from Vireo submission #9304 on 2016-07-07 at 13:31:11
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Lifting Automorphisms to Stem Extensions of a Finite Group
A central extension of finite groups e: 0 (--->) A (--->) E (--->) G (--->)1 is said to be a stem extension of G if A is contained in the commutator subgroup E' of E. Schur showed that A must be isomorphic to a subgroup of the finite abelian group M = M(G) = H('2)(G,(//C)('(.))), where …
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Automorphisms of the Four-Dimensional Projective Unimodular Unitary-Group
Made available in DSpace on 2014-12-11T18:23:59Z (GMT). No. of bitstreams: 1 7317575.pdf: 2790059 bytes, checksum: 9122493e361fde4bd362f2753b8b1646 (MD5) Previous issue date: 1973
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Dynamics of free group automorphisms and a subgroup alternative for out(fn)
This thesis is motivated by a foundational result of Thurston which states that pseudo- Anosov mapping classes act on the compactified Teichmüller space with north-south dynamics. We prove that several analogues of pseudo-Anosov mapping classes in the Out(F_N) setting act on the space of projective …
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Internal monoid actions in a cartesian closed category and higher-dimensional group automorphisms
The notion of cat¹-group which was introduced by Loday is equivalent to the notions of crossed module and of internal category in the category of groups. This notion of cat¹-groups and their morphisms admits natural generalization to catⁿ-groups, which give rise to n-fold categories in the category …
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