Showing 1,121 - 1,133 results of 1,133 for search '"Lie algebras"', query time: 0.11s Refine Results
  1. 1121

    Motivic coaction on generalized hypergeometric functions by Kamlesh, D

    Published 2024
    “…There has also been recent progress, of which I am a part, that was made in collaboration with Hadleigh Frost, Martijn Hidding, Carlos Rodriguez, Oliver Schlotterer and Bram Verbeek, where we bridge the two approaches mentioned above to give a Lie algebraic reformulation of the coaction conjecture as well as applications of the new approach to computing the single-valued (trivial monodromy) map for hypergeometric functions. …”
    Thesis
  2. 1122

    Twisted coadmissible equivariant D-modules on rigid analytic spaces by Mathers, R

    Published 2019
    “…The first section contains results on the structure of the dual nilpotent cone of a semisimple Lie algebra g over an algebraically closed field K of positive characteristic p. …”
    Thesis
  3. 1123
  4. 1124

    Altered Brain Morphometry in Cerebral Small Vessel Disease With Cerebral Microbleeds: An Investigation Combining Univariate and Multivariate Pattern Analyses by Jing Li, Hongwei Wen, Hongwei Wen, Shengpei Wang, Shengpei Wang, Yena Che, Nan Zhang, Lingfei Guo

    Published 2022-02-01
    “…Both univariate analysis and multivariate pattern analysis (MVPA) approaches were applied to investigate differences in brain morphometry among groups.ResultsIn univariate analysis, GMV and WMV differences were compared among groups using voxel-based morphometry (VBM) with diffeomorphic anatomical registration through exponentiated lie algebra (DARTEL). Compared to healthy controls, the CSVD-c group and CSVD-n group showed significantly lower GMV than the control group in similar brain clusters, mainly including the right superior frontal gyrus (medial orbital), left anterior cingulate gyrus, right inferior frontal gyrus (triangular part) and left superior frontal gyrus (medial), while the CSVD-n group also showed significantly lower WMV in the cluster of the left superior frontal gyrus (medial). …”
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    Article
  5. 1125

    To explore the potential mechanisms of cognitive impairment in children with MRI-negative pharmacoresistant epilepsy due to focal cortical dysplasia: A pilot study from gray matter... by Yilin Zhao, Jieqiong Lin, Xinxin Qi, Dezhi Cao, Fengjun Zhu, Li Chen, Zeshi Tan, Tong Mo, Hongwu Zeng

    Published 2024-02-01
    “…Voxel-based morphometry (VBM)-diffeomorphic anatomical registration through exponentiated lie algebra (DARTEL) and surface-based morphometry (SBM) analyses were performed to analyze gray matter volume and cortical structure. …”
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    Article
  6. 1126

    Independent and additive contribution of white matter hyperintensities and Alzheimer’s disease pathology to basal forebrain cholinergic system degeneration by Christine Kindler, Neeraj Upadhyay, Zeynep Bendella, Franziska Dorn, Vera C. Keil, Gabor C. Petzold

    Published 2023-01-01
    “…We assessed the white matter hyperintensity burden within the cholinergic projection pathways using the Cholinergic Pathways Hyperintensities Scale (CHIPS), and applied probabilistic anatomical maps for the analysis of CBFN volumes, i.e. the Ch1-3 compartment and the Ch4 cell group (nucleus basalis of Meynert), by diffeomorphic anatomical registration using exponentiated lie algebra analysis of voxel-based morphometry. Using multiple linear regression analyses, we explored correlations between regional gray matter volumes and the extent of white matter hyperintensities or CBFN volumes in both groups. …”
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    Article
  7. 1127

    Generalised Uncertainty Relations for Angular Momentum and Spin in Quantum Geometry by Matthew J. Lake, Marek Miller, Shi-Dong Liang

    Published 2020-04-01
    “…We show that this also gives rise to a rescaled Lie algebra for generalised spin operators, together with associated subalgebras that are analogous to those for orbital angular momentum. …”
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    Article
  8. 1128

    Riemann–Hilbert Problems, Polynomial Lax Pairs, Integrable Equations and Their Soliton Solutions by Vladimir Stefanov Gerdjikov, Aleksander Aleksiev Stefanov

    Published 2023-10-01
    “…Step 1 involves several assumptions: the choice of the Lie algebra <i>g</i> underlying <i>L</i>, as well as its dependence on the spectral parameter, typically linear or quadratic in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>λ</mi></semantics></math></inline-formula>. …”
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    Article
  9. 1129

    Kelvin Notation for Stabilizing Elastic-Constant Inversion Notation Kelvin pour stabiliser l'inversion de constantes élastiques by Dellinger J., Vasicek D., Sondergeld C.

    Published 2006-12-01
    “…The rotational parameters are defined using a Lie-algebra representation that avoids the artificial degeneracies and coordinate-system bias that can occur with standard polar representations. …”
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    Article
  10. 1130

    Alternative Derivation of the Non-Abelian Stokes Theorem in Two Dimensions by Seramika Ariwahjoedi, Freddy Permana Zen

    Published 2023-10-01
    “…For a given loop <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> embedded in a manifold <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">M</mi></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="bold-italic">H</mi><mfenced separators="" open="(" close=")"><mi>γ</mi><mo>,</mo><mi mathvariant="script">O</mi></mfenced></mrow></semantics></math></inline-formula> is an element of a Lie group <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">G</mi></semantics></math></inline-formula>; the curvature <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="bold-italic">R</mi><mfenced open="(" close=")"><mi>σ</mi></mfenced><mo>∈</mo><mi mathvariant="fraktur">g</mi></mrow></semantics></math></inline-formula> is an element of the Lie algebra of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="script">G</mi></semantics></math></inline-formula>. …”
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  11. 1131

    Patterns of regional gray matter loss at different stages of schizophrenia: A multisite, cross-sectional VBM study in first-episode and chronic illness by Ulysses S. Torres, Fabio L.S. Duran, Maristela S. Schaufelberger, José A.S. Crippa, Mario R. Louzã, Paulo C. Sallet, Caroline Y.O. Kanegusuku, Helio Elkis, Wagner F. Gattaz, Débora P. Bassitt, Antonio W. Zuardi, Jaime Eduardo C. Hallak, Claudia C. Leite, Claudio C. Castro, Antonio Carlos Santos, Robin M. Murray, Geraldo F. Busatto

    Published 2016-01-01
    “…Image processing and analyses were conducted using Statistical Parametric Mapping (SPM8) software with the diffeomorphic anatomical registration through exponentiated Lie algebra (DARTEL) algorithm. Group effects on regional gray matter (GM) volumes were investigated through whole-brain voxel-wise comparisons using General Linear Model Analysis of Co-variance (ANCOVA), always including total GM volume, scan protocol, age and gender as nuisance variables. …”
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  12. 1132

    The Interactions of molecules with the electromagnetic field by Woolley, R, Woolley, R.G.

    Published 1970
    “…With a suitable lagrangian and the use of the Coulomb gauge condition to define a specific Lie algebra for the dynamical variables, the hamiltonian that finally emerges is the required generalization of the multipole hamiltonian. …”
    Thesis
  13. 1133

    Extended Hamilton–Jacobi Theory, Symmetries and Integrability by Quadratures by Sergio Grillo, Juan Carlos Marrero, Edith Padrón

    Published 2021-06-01
    “…To do that, we give, for some elements <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>ξ</mi></semantics></math></inline-formula> of the Lie algebra <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="fraktur">g</mi></semantics></math></inline-formula> of <i>G</i>, an explicit expression up to quadratures of the exponential curve <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">exp</mo><mfenced separators="" open="(" close=")"><mi>ξ</mi><mspace width="0.166667em"></mspace><mi>t</mi></mfenced></mrow></semantics></math></inline-formula>, different to that appearing in the literature for matrix Lie groups. …”
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