Results 21 to 30 of about 95,628 (231)

On the fixed points of a Hamiltonian diffeomorphism in presence of fundamental group [PDF]

, 2014
Let M be a weakly monotone symplectic manifold, and H be a time-dependent Hamiltonian; we assume that the periodic orbits of the corresponding time-dependent Hamiltonian vector field are non-degenerate.
Ono, Kaoru, Pajitnov, Andrei
core   +2 more sources

Multimode N00N states in driven atomtronic circuits

Physical Review Research, 2020
We propose a method to generate multimode N00N states with arrays of ultracold atoms. Our protocol requires a strong relative offset among the wells and a drive of the interparticle interaction at a frequency resonant with the offsets.
Enrico Compagno, Guillaume Quesnel, Anna Minguzzi, Luigi Amico, Denis Feinberg   +4 more
doaj   +1 more source

Note on weakly nil clean and π-regular rings

Filomat, 2023
Let R be a commutative ring with identity 1 ? 0. The ring R is called weakly nil clean if every element x of R can be written as x = n + e or x = n ? e, where n is a nilpotent element of R and e is an idempotent element of R. The ring R is called weakly nil neat if every proper homomorphic image of R is weakly nil clean. Among other results,
Khaled Alhazmy, Fuad Almahdi, El Bouba, Mohammed Tamekkante   +3 more
openaire   +1 more source

M\"obius transformations and electronic transport properties of large disorderless networks

, 2012
We show that the key transport states, insulating and conducting, of large regular networks of scatterers can be described generically by negative and zero Lyapunov exponents, respectively, of M\"obius maps that relate the scattering matrix of systems ...
Castaño, E., Jiang, Yu, Martínez-Mares, M., Robledo, A.   +3 more
core   +1 more source

Weakly Semicommutative Rings and Strongly Regular Rings

Kyungpook mathematical journal, 2014
A ring R is called weakly semicommutative ring if for any a, b ∈ R∗ = R \ {0} with ab = 0, there exists n ≥ 1 such that either a = 0 and aRb = 0 or b = 0 and aRb = 0. In this paper, many properties of weakly semicommutative rings are introduced, some known results are extended. Especially, we show that a ring R is a strongly regular ring if and only if
Long Wang, Junchao Wei
openaire   +2 more sources

The KH-Theory of Complete Simplicial Toric Varieties and the Algebraic K-Theory of Weighted Projective Spaces

, 2013
We show that, for a complete simplicial toric variety $X$, we can determine its homotopy $\KH$-theory entirely in terms of the torus pieces of open sets forming an open cover of $X$. We then construct conditions under which, given two complete simplicial
Adam Massey, Bousfield, Cortiñas, Cortiñas, Cortiñas, Cortiñas, Cox, Fulton, Gubeladze, Haesemeyer, Merkurjev, Rohrer, Thomason, Thomason, Weibel, Weibel   +15 more
core   +1 more source

Weakly regular rings with ACC on annihilators and maximality of strongly prime ideals of weakly regular rings

Journal of Pure and Applied Algebra, 2006
It is well known that weak regularity is equivalent to regularity and biregularity for left Artinian rings. In this paper the authors prove the following result: for a ring \(R\) satisfying the ACC on right annihilators, if \(R\) is left weakly regular then \(R\) is biregular, and that \(R\) is left weakly regular if and only if \(R\) is a direct ...
Hong, Chan Yong, Jeon, Young Cheol, Kim, Kyoung Hwan, Kim, Nam Kyun, Lee, Yang   +4 more
openaire   +2 more sources

Multigraded Castelnuovo-Mumford Regularity

, 2003
We develop a multigraded variant of Castelnuovo-Mumford regularity. Motivated by toric geometry, we work with modules over a polynomial ring graded by a finitely generated abelian group.
Bayer D., Bayer D., Billera L. J., Bruns W., Chipalkatti J. V., D., D., Diane Maclagan, Ein L., Eisenbud D., Eisenbud D., Gotzmann G., Gregory G. Smith, Gruson L., Hausel T., Pareschi G., Reiner V.   +16 more
core   +3 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source