Results 31 to 40 of about 6,088 (266)

Bernstein spaces on Siegel CR manifolds

open access: yesAnalysis and Mathematical Physics, 2022
In this paper we introduce and study Bernstein spaces on a class of quadratic CR manifolds, that we call Siegel CR manifolds. These are spaces of entire functions of exponential type whose restrictions to a given Siegel CR submanifold are $L^p$-integrable with respect to a natural measure.
M. Calzi, M. M. Peloso
openaire   +4 more sources

CR submanifolds of a Kaehler manifold. II [PDF]

open access: yesTransactions of the American Mathematical Society, 1978
The differential geometry of CR submanifolds of a Kaehler manifold is studied. Theorems on parallel normal sections and on a special type of flatness of the normal connection on a CR submanifold are obtained.
openaire   +2 more sources

Totally umbilical CR-submanifolds of Semi-Riemannian Kaehler manifolds

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
We study totally umbilical CR-submanifolds of a Kaehler manifold carrying a semi-Riemannian metric. It is shown that for dimension of the totally real distribution greater than one, these submanifolds are locally decomposable into a complex and a totally
K. L. Duggal, R. Sharma
doaj   +1 more source

Bi-Slant Submanifolds of Para Hermitian Manifolds

open access: yesMathematics, 2019
In this paper, we introduce the notion of bi-slant submanifolds of a para Hermitian manifold. They naturally englobe CR, semi-slant, and hemi-slant submanifolds. We study their first properties and present a whole gallery of examples.
Pablo Alegre, Alfonso Carriazo
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Contact metric manifolds with large automorphism group and (κ, µ)-spaces

open access: yesComplex Manifolds, 2019
We discuss the classifiation of simply connected, complete (κ, µ)-spaces from the point of view of homogeneous spaces. In particular, we exhibit new models of (κ, µ)-spaces having Boeckx invariant -1.
Lotta Antonio
doaj   +1 more source

A stability theorem for projective CR manifolds [PDF]

open access: yesComplex Variables and Elliptic Equations, 2020
We consider smooth deformations of the $CR$ structure of a smooth $2$-pseudoconcave compact $CR$ submanifold $\textsf{M}$ of a reduced complex analytic variety $\textsf{X}$ outside the intersection $D\,{\cap}\,\textsf{M}$ with the support $D$ of a Cartier divisor of a positive line bundle $\texttt{F}_{\textsf{X}}.$ We show that nearby structures still ...
Brinkschulte, Judith   +2 more
openaire   +2 more sources

Tumor B‐cell infiltration in platinum‐treated advanced muscle‐invasive urothelial carcinoma

open access: yesMolecular Oncology, EarlyView.
Bladder tumors with higher pretreatment memory B‐cell infiltration were linked to longer survival after cisplatin chemotherapy, but not carboplatin. These tumors also showed more organized immune structures (tertiary lymphoid structures) and a shared pro‐inflammatory B‐cell‐rich community, suggesting that memory B cells may help identify patients most ...
Konrad Stawiski   +10 more
wiley   +1 more source

On Spherical CR Uniformization of 3-Manifolds [PDF]

open access: yesExperimental Mathematics, 2015
We consider the discrete representations of 3-manifold groups into $PU(2,1)$ that appear in the Falbel-Koseleff-Rouillier census, such that the peripheral subgroups have cyclic unipotent holonomy. We show that two of these representations have conjugate images, even though they represent different 3-manifold groups.
openaire   +3 more sources

Yang–Mills fields on CR manifolds [PDF]

open access: yesJournal of Mathematical Physics, 2006
We study pseudo Yang–Mills fields on a compact strictly pseudoconvex CR manifold M, i.e., the critical points of the functional PYM(D)=12∫M∥πHRD∥2θ∧(dθ)n, where D is a connection in a Hermitian CR holomorphic vector bundle (E,h)→M. Let Ω={φ<0}⊂Cn be a smoothly bounded strictly pseuodoconvex domain and g the Bergman metric on Ω.
BARLETTA, Elisabetta   +2 more
openaire   +2 more sources

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