Results 51 to 60 of about 6,982,939 (355)

Certain Subclasses of Meromorphic Univalent Function Involving Differential Operator

open access: yesAl-Mustansiriyah Journal of Science, 2020
The main object of the present paper is to introduce the class of meromorphic univalent function K* (σ,τ,S) defined by differential operator with study some geometric properties like coefficient inequality , growth theorem and distortion theorem, radii ...
Teba Rzaij Al-Kubaisi   +1 more
doaj   +1 more source

A non‐conservative Harris ergodic theorem [PDF]

open access: yesJournal of the London Mathematical Society, 2019
We consider non‐conservative positive semigroups and obtain necessary and sufficient conditions for uniform exponential contraction in weighted total variation norm.
Vincent Bansaye   +3 more
semanticscholar   +1 more source

A general regularity theorem for functionals with φ-growth

open access: yesJournal of Mathematical Analysis and Applications, 2011
Abstract We prove C 1 , α -regularity for local minimizers of functionals ∫ Ω φ ( | ∇ u | ) d x , where φ is a Young function. In order to generalize the results of Fuchs (2011) [9] and Diening et al. (2009) [6] , we assume for the function φ only the ( Δ 2 ) -condition and φ ″ ( t ) ⩾ ϵ ˆ
BREIT D.   +2 more
openaire   +3 more sources

Approximate groups and doubling metrics

open access: yes, 2012
We develop a version of Freiman's theorem for a class of non-abelian groups, which includes finite nilpotent, supersolvable and solvable A-groups. To do this we have to replace the small doubling hypothesis with a stronger relative polynomial growth ...
Bray   +7 more
core   +1 more source

On a Tauberian theorem of Ingham and Euler–Maclaurin summation [PDF]

open access: yesThe Ramanujan journal, 2019
We discuss two theorems in analytic number theory and combinatory analysis that have seen increased use in recent years. A corollary to a Tauberian theorem of Ingham allows one to quickly prove asymptotic formulas for arithmetic sequences, so long as the
K. Bringmann   +2 more
semanticscholar   +1 more source

Application of the q-derivative operator to a specialized class of harmonic functions exhibiting positive real part

open access: yesAIMS Mathematics
This paper introduces a new subclass of harmonic functions with a positive real part, denoted by $ HP_q(\beta) $, where $ 0 \leq \beta < 1 $ and $ 0 < q < 1 $.
Khadeejah Rasheed Alhindi
doaj   +1 more source

Coexistence for a resource-based growth model with two resources

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2003
We investigate the coexistence of positive steady-state solutions to a parabolic system, which models a single species on two growth-limiting, non-reproducing resources in an un-stirred chemostat with diffusion.
Yifu Wang, Y. Meng
doaj   +1 more source

Fourth-order elliptic problems with critical nonlinearities by a sublinear perturbation

open access: yesNonlinear Analysis, 2021
In this paper, we get the existence of two positive solutions for a fourth-order problem with Navier boundary condition. Our nonlinearity has a critical growth, and the method is a local minimum theorem obtained by Bonanno.
Lin Li, Donal O’Regan
doaj   +1 more source

Invariant representation for generators of general time interval quadratic BSDEs under stochastic growth conditions [PDF]

open access: yesarXiv, 2021
This paper is devoted to proving a general invariant representation theorem for generators of general time interval backward stochastic differential equations, where the generator $g$ has a quadratic growth in the unknown variable $z$ and satisfies some stochastic growth conditions in the unknown variable $y$.
arxiv  

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