Results 11 to 20 of about 112 (48)
Classical phase transitions in a one-dimensional short-range spin model [PDF]
, 2018 Ising's solution of a classical spin model famously demonstrated the absence of a positive-temperature phase transition in one-dimensional equilibrium systems with short-range interactions.
Ananikian N +22 more
core +2 more sources
A G_2 Unification of the Deformed and Resolved Conifolds [PDF]
, 2001 We find general first-order equations for G_2 metrics of cohomogeneity one with S^3\times S^3 principal orbits. These reduce in two special cases to previously-known systems of first-order equations that describe regular asymptotically locally conical ...
Acharya +18 more
core +5 more sources
Estratégias de comunicação baseadas no Facebook: o caso do Posto de Turismo da Praia da Barra [PDF]
, 2021 Besides being a technology, social media is a reality and a transdisciplinary dynamic, which has grown and that is difficult to follow in all its areas of intervention.
Gonçalves, Pedro +2 more
core +2 more sources
On Roth's pseudo equivalence over rings [PDF]
, 2007 The pseudo-equivalence of a block lower triangular matrix T = [T_{ij}] over a regular ring and its block diagonal matrix D(T) = [T_{ii}] is characterized in terms of suitable Roth consistency conditions.
Hartwig, Robert E., Patrício, Pedro
core +2 more sources
Lamplighter groups and von Neumann's continuous regular rings [PDF]
, 2016 Let Γ be a discrete group. Following Linnell and Schick one can define a continuous ring c(Γ) associated with Γ. They proved that if the Atiyah Conjecture holds for a torsion-free group Γ, then c(Γ) is a skew field.
Elek, Gabor
core +1 more source
Semiprime SF‐rings whose essential left ideals are two‐sided
International Journal of Mathematics and Mathematical Sciences, Volume 17, Issue 3, Page 617-618, 1994., 1994 It is proved that if R is a semiprime ELT‐ring and every simple right R‐module is flat then R is regular. Is R regular if R is a semiprime ELT‐ring and every simple right R‐module is flat? In this note, we give a positive answer to the question.
Zhang Jule, Du Xhianneng
wiley +1 more source
A Symbolic Algorithm for the Computation of Periodic Orbits in Non–Linear Differential Systems [PDF]
, 2016 The Poincaré–Lindstedt method in perturbation theory is used to compute periodic solutions in perturbed differential equations through a nearby periodic orbit of the unperturbed problem.
Navarro, Juan F.
core +2 more sources
Reflexive algebras and sigma algebras
International Journal of Mathematics and Mathematical Sciences, Volume 9, Issue 4, Page 811-816, 1986., 1986 The concept of a reflexive algebra (σ‐algebra) β of subsets of a set X is defined in this paper. Various characterizations are given for an algebra (σ‐algebra) β to be reflexive. If V is a real vector lattice of functions on a set X which is closed for pointwise limits of functions and if β = {A|A⫅X and CA(x) ∈ V} is the σ‐algebra induced by V then ...
T. C. Przymusinski, V. K. Srinivasan
wiley +1 more source
Uso de herramientas tecnológicas para la Gestión de Conocimiento : El caso RSE en San Lorenzo [PDF]
, 2022 El presente trabajo versa sobre el relevamiento realizado en la ciudad de San Lorenzo relativo al conocimiento de la población en lo que hace a la Responsabilidad Social Empresaria y el uso de Tecnologías de Conocimiento. Se aplican diversas herramientas
Ingrassia, Ramiro, Marchese, Alicia
core
New mechanism of membrane fusion
, 2001 We have carried out Monte Carlo simulation of the fusion of bilayers of single chain amphiphiles which show phase behavior similar to that of biological lipids. The fusion mechanism we observe is very different from the ``stalk'' hypothesis.
K. Katsov +3 more
core +1 more source