Results 81 to 90 of about 863,772 (291)

Three Natural Generalizations of Fedosov Quantization

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
Fedosov's simple geometrical construction for deformation quantization of symplectic manifolds is generalized in three ways without introducing new variables: (1) The base manifold is allowed to be a supermanifold.
Klaus Bering
doaj   +1 more source

Phase Space Reduction for Star-Products: An Explicit Construction for CP^n

open access: yes, 1995
We derive a closed formula for a star-product on complex projective space and on the domain $SU(n+1)/S(U(1)\times U(n))$ using a completely elementary construction: Starting from the standard star-product of Wick type on $C^{n+1} \setminus \{ 0 \}$ and ...
B. Fedosov   +20 more
core   +1 more source

Formal Connections for Families of Star Products [PDF]

open access: yesCommunications in Mathematical Physics, 2016
26 pages, some typos fixed, references improved, to appear in Commun.
Jørgen Ellegaard Andersen   +2 more
openaire   +6 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Exponential Formulas and Lie Algebra Type Star Products

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
Given formal differential operators $F_i$ on polynomial algebrain several variables $x_1,...,x_n$, we discuss finding expressions $K_l$ determined by the equation $exp(sum_i x_i F_i)(exp(sum_j q_j x_j)) = exp(sum_l K_l x_l)$ and their applications.
Dragutin Svrtan   +5 more
doaj   +1 more source

Fully solvable lower dimensional dynamics of Cartesian product of Kuramoto models

open access: yesNew Journal of Physics, 2019
Implementing a positive correlation between the natural frequencies of nodes and their connectivity on a single star graph leads to a pronounced explosive transition to synchronization, additionally presenting hysteresis behavior.
Zewen Chen   +4 more
doaj   +1 more source

Non-formal star-exponential on contracted one-sheeted hyperboloids

open access: yes, 2015
In this paper, we exhibit the non-formal star-exponential of the Lie group SL(2,R) realized geometrically on the curvature contraction of its one-sheeted hyperboloid orbits endowed with its natural non-formal star-product.
Bieliavsky, Pierre   +3 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Extended Voros product in the coherent states framework

open access: yes, 2004
Using coherent states of the Weyl-Heisenberg algebra $h_N$, extended Voros products and Moyal brakets are derived. The covariance of Voros product under canonical transformations is discussed. Star product related to Barut-Girardello coherent states of
Alexanian   +30 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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