Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"involutions"”.
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Propriedades de Lie em anéis de grupo
… properties of symmetric elements under oriented involutions de J. Hermes Castillo e C. Polcino Milies, o qual apresenta alguns resultados a respeito das propriedades Lie nilpotência e Lie n-Engel em anéis de grupo e, mais especi camente, nos seus elementos simétricos sob uma involuçãao clássica …
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A classification of real and complex nilpotent orbits of reductive groups in terms of complex even nilpotent orbits
… parametrizing nilpotent orbits for strong involutions of G in terms of even nilpotent orbits of complex subalgebras of g and show how to explicitly compute this correspondence.
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The Week
… the reader directly or voices that follow the involutions of a thought, dwelling on minute details of consciousness; these pieces play with conventional short story elements (character, plot, rising action, falling action, etc.), although they often “fizzle” or turn sharply to unsettle reader …
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Smooth K-theory and locally convex algebras
… are primarily formulated in the language of involutions. The paper also demonstrates the universality of the involution terminology with respect to vector bundles.
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Spaces of diffeomorphisms and embeddings via algebraic K-theory
… involves a detailed study of certain geometric involutions in algebraic K-theory spaces that can be of independent interest.
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On the Classification of Enriques Surfaces
… of Enriques surfaces by free anti-holomorphic involutions where we prove that these resulting compact Einstein four-manifolds are diffeomorphic, and in fact of the same deformation type.
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Coxeter systems, multiplicity free representations, and twisted Kazhdan-Lusztig Theory
… system (W, S), spanned by the set of twisted involutions in W. Lusztig has shown that this module has two distinguished bases, and that the transition matrix between these bases defines interesting analogs of the much-studied Kazhdan-Lusztig polynomials of (W, S). We prove several positivity …
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The generation and characterization of transgenic mice expressing modifiers of Rho GTPases
… in the adult mouse brain contained more severe involutions and aggregations of the cells in specific area of somatosensory cortex in brain, particularly in layer IV. Also, the barrel-like discontinuous pattern was more extended toward the posterior part of the brain in the mice that have …
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The construction of DNA codes using a computer algebra system
… This additional constraint is studied using involutions in a permutation group. Codes constructed in this thesis are derived from linear codes over GF(4) and Z4 and additive codes over GF(4). Previous approaches to the construction of these codes are extended in several ways. Longer codes are …
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SYMMETRIC PRESENTATIONS OF NON-ABELIAN SIMPLE GROUPS
… of the cyclic group of order 2 generated by involutions t<sub>i </sub>for 1 ≤ i≤ n; and N is a transitive permutation group of degree n which acts on the free product by permuting the involuntary generators by conjugation. Thus we develop methods for factoring by a suitable any number of …
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The glacial and periglacial history of a Middle Pleistocene ice-margin of the British Ice Sheet (BIS) in north Buckinghamshire, England and its influence on geotechnical variability
… for periglaciation occurs in the form of involutions in limestone bedrock and river terrace gravels, sub-horizontal shears in till and Oxford Clay bedrock and frost-cracking within till-derived chalk clasts and micritic limestone bedrock. There are no appreciable differences in the …
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Pairs of geometric foliations of regular and singular surfaces
… binary differential equations (BDEs) and linear involutions on the real projective line. We show that one may construct pairs of BDEs that have various symmetric properties using a single involution on $\mathbb{R}P^1$. We study the folded singularities of BDEs, and associate an affine invariant …
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Orders of Perfect Groups with Dihedral Involution Centralizers
Let G be a finite group that is equal to its commutator subgroup, and suppose that G contains an element of order 2 whose centralizer in G is dihedral of 2-power order. We study the cases where this centralizer is dihedral of order 8, 16, 32, 64, 128, or 256. It is true in each case that this …