Results 41 to 50 of about 118,453 (329)
An irreducible Heegaard diagram of the real projective 3-space p3
International Journal of Mathematics and Mathematical Sciences, 2000 We give a genus 3 Heegaard diagram H of the real projective space p3, which has no waves and pairs of complementary handles. So Negami's result that every genus 2 Heegaard diagram of p3 is reducible cannot be extended to Heegaard diagrams of p3 with ...
Young Ho Im, Soo Hwan Kim
doaj +1 more source
OPTIMAL LINE PACKINGS FROM FINITE GROUP ACTIONS
Forum of Mathematics, Sigma, 2020 We provide a general program for finding nice arrangements of points in real or complex projective space from transitive actions of finite groups. In many cases, these arrangements are optimal in the sense of maximizing the minimum distance.
JOSEPH W. IVERSON +2 more
doaj +1 more source
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Angle-resolved photoelectron spectroscopy in a low-energy electron microscope
Structural Dynamics, 2023 Spectroscopic photoemission microscopy is a well-established method to investigate the electronic structure of surfaces. In modern photoemission microscopes, the electron optics allow imaging of the image plane, momentum plane, or dispersive plane ...
Alexander Neuhaus +5 more
doaj +1 more source
Quantization of symplectic tori in a real polarization
, 1996 We apply the geometric quantization method with real polarizations to the quantization of a symplectic torus. By quantizing with half-densities we canonically associate to the symplectic torus a projective Hilbert space and prove that the projective ...
Manoliu, Mihaela
core +1 more source
FEBS Letters, EarlyView.In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley +1 more source
AppliedMath, 2023 Let X be a smooth projective variety and f:X→Pr a morphism birational onto its image. We define the Terracini loci of the map f. Most results are only for the case dimX=1.
Edoardo Ballico
doaj +1 more source
On nonimmersion of real projective spaces
Topology and its Applications, 2004 The author proves that if \(n=2^r+2^s\;(s\geq 0)\), then the real projective \((16n+11)\)-space \(P^{16n+11}\) cannot be immersed in euclidean \((32n+12)\)-space \(\mathbb{R}^{32n+12}\). This result is the best possible, because Theorem 5 for \(t=1\) of \textit{J. Adem}, \textit{S. Gitler}, and \textit{M. Mahowald} [Bol. Soc. Mat.
openaire +2 more sources
An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots
FEBS Letters, EarlyView.This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino +7 more
wiley +1 more source
The BGG Complex on Projective Space
Symmetry, Integrability and Geometry: Methods and Applications, 2011 We give a complete construction of the Bernstein-Gelfand-Gelfand complex on real or complex projective space using minimal ingredients.
Michael G. Eastwood, A. Rod Gover
doaj +1 more source