Results 81 to 90 of about 3,067,810 (315)

Almost Ricci soliton in $Q^{m^{\ast}}$ [PDF]

AUT Journal of Mathematics and Computing
In this paper, we will focus our attention on the structure of $h$-almost Ricci solitons on complex hyperbolic quadric. We will prove non-existence a contact real hypersurface in the complex hyperbolic quadric $Q^{m^*}, m\geq 3$, admitting the gradient ...
Hamed Faraji, Shahroud Azami
doaj   +1 more source

Canonical-type connection on almost contact manifolds with B-metric

, 2013
The canonical-type connection on the almost contact manifolds with B-metric is constructed. It is proved that its torsion is invariant with respect to a subgroup of the general conformal transformations of the almost contact B-metric structure. The basic
A. Lichnerowicz, A. Lichnerowicz, A. Strominger, D. Gribacheva, D. Gribacheva, D. Gribacheva, D. Mekerov, D.E. Blair, G. Ganchev, G. Ganchev, G. Ganchev, G. Ganchev, H. Hayden, M. Manev, M. Manev, M. Manev, M. Manev, M. Manev, Mancho Manev, Miroslava Ivanova, P. Gauduchon, S. Ivanov, S. Sasaki, S.J. Gates, T. Friedrich, T. Friedrich   +25 more
core   +1 more source

RIPK4 function interferes with melanoma cell adhesion and metastasis

Molecular Oncology, EarlyView.
RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski, Sławomir Lasota, Ewelina Madej, Anna A. Brożyna, Małgorzata Szczygieł, Agnieszka Harazin‐Lechowska, Jan Czerbniak, Janusz Rys, Jaroslaw Czyz, Agnieszka Wolnicka‐Glubisz   +9 more
wiley   +1 more source

Geometric structures on loop and path spaces

, 2010
Is is known that the loop space associated to a Riemannian manifold admits a quasi-symplectic structure. This article shows that this structure is not likely to recover the underlying Riemannian metric by proving a result that is a strong indication of ...
A. Pressley, Francisco Presas, G. Segal, M. A. Guest, M. F. Atiyah, T. Wurzbacher, Vicente Muñoz   +6 more
core   +1 more source

WEAK ALMOST CONTACT STRUCTURES: A SURVEY

Facta Universitatis, Series: Mathematics and Informatics
Weak almost contact structures, defined by the author and R. Wolak, allowed us to take a new look at the theory of contact manifolds. The paper surveys recent results (concerning geodesic and Killing fields, rigidity and splitting theorems, Riccitype solitons and Einstein-type metrics, etc.) in this new field of Riemannian geometry.
openaire   +3 more sources

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source

Matrix Lie groups as 3-dimensional almost contact B-metric manifolds [PDF]

, 2015
The object of investigation are Lie groups considered as almost contact B-metric manifolds of the lowest dimension three. It is established a correspondence of all basic-class-manifolds of the Ganchev-Mihova-Gribachev classification of the studied ...
Manev, Hristo
core   +1 more source

Inequivalent contact structures on Boothby-Wang 5-manifolds

, 2012
We consider contact structures on simply-connected 5-manifolds which arise as circle bundles over simply-connected symplectic 4-manifolds and show that invariants from contact homology are related to the divisibility of the canonical class of the ...
D Barden, D McDuff, D McDuff, E Lerman, GE Bredon, H Duan, H Geiges, J Milnor, JW Gray, Mark J. D. Hamilton, MJD Hamilton, O Koert van, RE Gompf, RE Gompf, S Kobayashi, WM Boothby   +15 more
core   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

Minkowski superspaces and superstrings as almost real-complex supermanifolds

, 2012
In 1996/7, J. Bernstein observed that smooth or analytic supermanifolds that mathematicians study are real or (almost) complex ones, while Minkowski superspaces are completely different objects. They are what we call almost real-complex supermanifolds, i.
A. A. Beilinson, A. Galperin, A. McHugh, A. Newlander, A. Yu. Vaintrob, A. Yu. Vajntrob, D. A. Leites, D. A. Leites, D. A. Leites, D. A. Leites, F. A. Berezin, I. A. Batalin, I. M. Shchepochkina, I. M. Shchepochkina, I. N. Bernshtein, J. Gomis, M. L. Kontsevich, O. I. Bogoyavlenskij, P. Deligne, P. Grozman, P. Grozman, P. Grozman, P. Ya. Grozman, P. Ya. Grozman, S. Bouarroudj, S. Kuzenko, S. Sternberg, V. M. Sergeev, Yu. I. Manin, Yu. I. Manin   +29 more
core   +1 more source