Results 51 to 60 of about 1,121,911 (262)

Convex ordered Gamma-semihypergroups associated to strongly regular relations

MATEMATIKA, 2017
In this study, we introduce and investigate the notion of convex ordered Gamma-semihypergroups associated to strongly regular relations. Afterwards, we prove that if sigma is a strongly regular relation on a convex ordered Gamma-semihypergroup, then the quotient set is an ordered Gamma-sigma-semigroup.
Saber Omidi, Bijan Davvaz
openaire   +2 more sources

Big Entropy Fluctuations in Statistical Equilibrium: The Macroscopic Kinetics

, 2000
Large entropy fluctuations in an equilibrium steady state of classical mechanics were studied in extensive numerical experiments on a simple 2--freedom strongly chaotic Hamiltonian model described by the modified Arnold cat map.
A. Cottrell, A. J. Lichtenberg, A. M. Yaglom, A. N. Kolmogoroff, A. Turing, B. V. Chirikov, B. V. Chirikov, B. V. Chirikov, B. V. Chirikov, D. G. Luchinsky, D. V. Anosov, H. Haken, I. P. Kornfel’d, J. Jeans, J. Lebowitz, J. Lebowitz, L. Boltzmann, L. D. Landau, L. Schulman, O. V. Zhirov, P. Glansdorf, R. Balescu, V. I. Arnold   +22 more
core   +2 more sources

Characterizations of (strongly) ordered regular relations on ordered semihypergroups

Journal of Algebra, 2016
In this paper, the authors study the concept of ordered regular (strongly ordered regular) equivalence relations on ordered semihypergroups. In particular, they construct an ordered regular equivalence relation on an ordered semihypergroup by hyperideals such that the corresponding quotient structure is also an ordered semihypergroup, which answers the
Ze Gu, Xilin Tang
openaire   +1 more source

Entanglement entropies of the $J_1 - J_2$ Heisenberg antiferromagnet on the square lattice

, 2015
Using a modified spin-wave theory which artificially restores zero sublattice magnetization on finite lattices, we investigate the entanglement properties of the N\'eel ordered $J_1 - J_2$ Heisenberg antiferromagnet on the square lattice. Different kinds
Alet, Fabien, Laflorencie, Nicolas, Luitz, David J.   +2 more
core   +2 more sources

Summation of rational series twisted by strongly B-multiplicative coefficients [PDF]

, 2015
We evaluate in closed form series of the type $\sum u(n) R(n)$, where $(u(n))_n$ is a strongly $B$-multiplicative sequence and $R(n)$ a (well-chosen) rational function. A typical example is: $$ \sum_{n \geq 1} (-1)^{s_2(n)} \frac{4n+1}{2n(2n+1)(2n+2)} = -
Allouche, Jean-Paul, Sondow, Jonathan
core   +2 more sources

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine, Ofélie Trudeau‐Ferrin, Caroline Laverdière, Patrick Hamel, Rosanne Superstein, Bénédicte Koukoui, Carole Provost, Paul C. Nathan, Vijay Ramaswamy, Furqan Shaikh, Brenda Gallie, Ashwin Mallipatna, Stephanie Kletke, Helen Dimaras, Hallie Coltin   +14 more
wiley   +1 more source

Financial Burden Associated With Hospitalisation Among Families of Childhood Brain Tumours in Australia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim, Natalie Bradford, David Brain, Sameera Senanayake, Sanjeewa Kularatna, Kate Young, Christine Cashion, Tim Hassall, Susanna Cramb   +8 more
wiley   +1 more source

On the Pauli graphs of N-qudits [PDF]

, 2007
A comprehensive graph theoretical and finite geometrical study of the commutation relations between the generalized Pauli operators of N-qudits is performed in which vertices/points correspond to the operators and edges/lines join commuting pairs of them.
Planat, Michel, Saniga, Metod
core   +4 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Analysis of Korean Peninsula Earthquake Network Based on Event Shuffling and Network Shuffling

Entropy, 2021
In this work, a Korean peninsula earthquake network, constructed via event-sequential linking known as the Abe–Suzuki method, was investigated in terms of network properties.
Seungsik Min, Gyuchang Lim
doaj   +1 more source