Results 41 to 50 of about 1,088,616 (274)

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.
Bijan Davvaz, Saber Omidi
openaire   +3 more sources

A note on strong protomodularity, actions and quotients [PDF]

, 2016
In order to study the problems of extending an action along a quotient of the acted object and along a quotient of the acting object, we investigate some properties of the fibration of points.
Metere, Giuseppe
core   +3 more sources

Some results on the filter method for nonlinear complementary problems

Journal of Inequalities and Applications, 2021
Recent studies show that the filter method has good numerical performance for nonlinear complementary problems (NCPs). Their approach is to reformulate an NCP as a constrained optimization solved by filter algorithms.
Jueyu Wang, Chao Gu, Guoqiang Wang
doaj   +1 more source

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

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

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

Population Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

Population Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva, João Hemerson de Sousa, Adriana Josefa da Rocha, Manuella Feitosa Leal, Lucas Ariel de Sousa Aguiar, Tamaris Gimenez Pinheiro, Edson Lourenço da Silva   +6 more
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

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

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

Population Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa, Andrea Costa, Sebastiano Salvidio   +2 more
wiley   +1 more source