Results 51 to 60 of about 836,642 (337)

Construction of new Lie group and its geometric properties

AIMS Mathematics
In this paper, we constructed a novel Lie group by using oblate spheroidal coordinates. First, we took the metric tensor of oblate spheroidal coordinates, then found its Killing vectors by using the Killing equation.
Muhammad Asad Iqbal, Abid Ali , Ibtesam Alshammari, Cenap Ozel   +3 more
doaj   +1 more source

Spinorial Characterization of Surfaces into 3-dimensional homogeneous Manifolds [PDF]

, 2007
We give a spinorial characterization of isometrically immersed surfaces into 3-dimensional homogeneous manifolds with 4-dimensional isometry group in terms of the existence of a particular spinor, called generalized Killing spinor.
Abresch, Bär, Bär, Daniel, Daniel, Friedrich, Friedrich, Hijazi, Hijazi, Hijazi, Hijazi, Julien Roth, Lawson, Morel, Morel, Rosenberg, Scott   +16 more
core   +7 more sources

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Hidden symmetry in the presence of fluxes

, 2010
We derive the most general first order symmetry operator for the Dirac equation coupled to arbitrary fluxes. Such an operator is given in terms of an inhomogenous form omega which is a solution to a coupled system of first order partial differential ...
Açik, Benn, Benn, Benn, Chong, Chow, Claude M. Warnick, Connes, Cvetic, David Kubizňák, De Jonghe, Gibbons, Houri, Houri, Kamran, Kubiznak, McLenaghan, Pavel Krtouš, Rietdijk, Semmelmann, Sen, Wu, Yano   +22 more
core   +1 more source

Some New Results on Trans-Sasakian Manifolds

Journal of Mathematics, 2022
In this paper, we classify trans-Sasakian manifolds which are realized as real hypersurfaces in a complex space form. We also investigate trans-Sasakian manifolds whose Reeb vector fields are harmonic-Killing.
Lei Wang, Yan Zhao
doaj   +1 more source

TRANSVERSE KILLING FORMS ON A KÄAHLER FOLIATION [PDF]

Bulletin of the Korean Mathematical Society, 2012
On a closed, connected Riemannian manifold with a Kahler foliation F of codimension q, any transverse Killing r-form (2 r q) is parallel.
Seoung-Dal Jung, Min-Joo Jung
openaire   +1 more source

The zinc finger domains of PARP‐1 are selectively and potently inhibited by the Au(I)‐based drugs sodium aurothiomalate and aurothioglucose

FEBS Letters, EarlyView.
PARP‐1 is a key enzyme in the DNA damage response, and its inhibition induces cancer cell death via synthetic lethality. Au(I)‐based drugs, such as aurothioglucose and sodium aurothiomalate, block PARP‐1's DNA‐dependent activity by targeting its zinc finger domains.
Uliana Bashtanova, Melinda Jane Duer
wiley   +1 more source

Black hole and naked singularity geometries supported by three-form fields

European Physical Journal C: Particles and Fields, 2020
We investigate static and spherically symmetric solutions in a gravity theory that extends the standard Hilbert–Einstein action with a Lagrangian constructed from a three-form field $$A_{\alpha \beta \gamma }$$ Aαβγ , which is related to the field ...
Bruno J. Barros, Bogdan Dǎnilǎ, Tiberiu Harko, Francisco S. N. Lobo   +3 more
doaj   +1 more source

Black hole spacetimes with Killing-Yano symmetries

, 2009
We present a brief overview of black hole spacetimes admitting Killing-Yano tensors. In vacuum these include Kerr-NUT-(A)dS metrics and certain black brane solutions.
Kubiznak, David
core   +1 more source

Superconformal Sigma Models in Higher Than Two Dimensions [PDF]

, 1994
Rigidly superconformal sigma models in higher than two dimensions are constructed. These models rely on the existence of conformal Killing spinors on the $p+1$ dimensional worldvolume $(p\le 5)$, and homothetic conformal Killing vectors in the $d ...
Abraham, Bergshoeff, Blencowe, Duff, Ergin Sezgin, Flato, Gibbons, Kojima, Nicolai, van Nieuwenhuizen, Yano, Yano, Yoshiaki Tanii   +12 more
core   +2 more sources