Results 21 to 30 of about 629 (72)

On the Corner Elements of the CKM and PMNS Matrices [PDF]

, 2012
Recent experiments show that the top-right corner element ($U_{e3}$) of the PMNS, like that ($V_{ub}$) of the CKM, matrix is small but nonzero, and suggest further via unitarity that it is smaller than the bottom-left corner element ($U_{\tau 1}$), again
Baker M. J. Bordes J. Chan H.-M. Tsou S. T., Bordes J., Chan Hong-Mo, Dalitz R. H., José Bordes, Michael J. Baker, Pontecorvo B., Pontecorvo B., Shabalin E. P., Tsou Sheung Tsun   +9 more
core   +3 more sources

Geometrically Induced Gauge Structure on Manifolds Embedded in a Higher Dimensional Space [PDF]

, 1997
We explain in a context different from that of Maraner the formalism for describing motion of a particle, under the influence of a confining potential, in a neighbourhood of an n-dimensional curved manifold M^n embedded in a p-dimensional Euclidean space
Chepilko N. M., Christ N. H., Fujii K., Hannay J. H., Kanji Fujii, Kugler M., Kugo T., Maraner P., Naohisa Ogawa, Nikolai Mikhailovich Chepilko, Satoshi Uchiyama   +10 more
core   +2 more sources

The Variational Principle for the Uniform Acceleration and Quasi-Spin in Two Dimensional Space-Time [PDF]

, 2008
The variational principle and the corresponding differential equation for geodesic circles in two dimensional (pseudo)-Riemannian space are being discovered.
Matsyuk, Roman Ya.
core   +4 more sources

Classical A_n--W-Geometry

, 1992
This is a detailed development for the $A_n$ case, of our previous article entitled "W-Geometries" to be published in Phys. Lett. It is shown that the $A_n$--W-geometry corresponds to chiral surfaces in $CP^n$.
A. Bilal, A. Bilal, A. Bilal, A. Bilal, A. Gerasimov, A. Polyakov, A.B. Zamolodchikov, A.N. Leznov, C. Itzykson, E. Cremmer, E. Cremmer, G. Sotkov, J.-L. Gervais, J.-L. Gervais, Jean-Loup Gervais, K. Ueno, L. Eisenhart, M. Sato, M. Saveliev, P. Forgács, P. Griffiths, P. Mansfield, S. Kobayashi, S.R. Das, V. Yu Ovsienko, V.G. Drinfeld, V.G. Kac, Y. Matsuo, Yutaka Matsuo   +28 more
core   +1 more source

Spatial Generalized Octonionic Curves

Axioms
This study investigates curves in a 7-dimensional space, represented by spatial generalized octonion-valued functions of a single variable, where the general octonions include real, split, semi, split semi, quasi, split quasi, and para octonions.
Mücahit Akbıyık, Jeta Alo, Seda Yamaç Akbıyık   +2 more
doaj   +1 more source

Invariants of analytic curves [PDF]

, 1989
In this article we introduce a complete system of geometry invariants for an analytic curve.
Zwiesler, H. J
core   +2 more sources

A Hardy inequality in twisted waveguides [PDF]

, 2005
We show that twisting of an infinite straight three-dimensional tube with non-circular cross-section gives rise to a Hardy-type inequality for the associated Dirichlet Laplacian.
B. Chenaud, D. Borisov, D. Borisov, D. Krejčiřík, D. Krejčiřík, G. Bouchitté, H. Kovařík, J. Goldstone, N.E. Hurt, P. Duclos, P. Exner, P. Exner, T. Ekholm, T. Ekholm, W. Bulla, W. Klingenberg, W. Renger   +16 more
core   +1 more source

Multiple Unmanned Aerial Vehicle Formation Control through Deep Reinforcement Learning with Offline Sample Correction

Advanced Intelligent Systems, Volume 7, Issue 12, December 2025.
Herein, a deep reinforcement learning‐based multi‐UAV formation control approach is proposed. By optimizing the utilization of historical data through correcting of offline samples, the past experience is better leveraged and learning performance is improved.
Zhongkai Chen, Han Zhou, Chao Yan, Yihao Sun, Xiaojia Xiang   +4 more
wiley   +1 more source

Differential Invariants of Conformal and Projective Surfaces [PDF]

, 2007
We show that, for both the conformal and projective groups, all the differential invariants of a generic surface in three-dimensional space can be written as combinations of the invariant derivatives of a single differential invariant. The proof is based
Hubert, Evelyne, Olver, Peter J.
core   +8 more sources

A Comparison of Skeletal Muscle Diffusion Tensor Imaging Tractography Seeding Methods

NMR in Biomedicine, Volume 38, Issue 12, December 2025.
Diffusion‐tensor imaging (DTI) fiber tracking can be used to quantify skeletal muscle architecture, allowing studies of muscle structure‐function relationships. However, the options for defining the seed points (starting points for integrating the first eigenvector of the diffusion tensor) to form the fiber tracts have not been evaluated.
Bruce M. Damon, Roberto Pineda Guzman, Carly A. Lockard, Xingyu Zhou   +3 more
wiley   +1 more source