Results 11 to 20 of about 28,174 (201)
On Becker's univalence criterion [PDF]
14 pages, 1 ...
Juha-Matti Huusko, Toni Vesikko
openaire +7 more sources
A first-order differential double subordination with applications [PDF]
Let $q_1$ and $q_2$ belong to a certain class of normalized analytic univalent functions in the open unit disk of the complex plane. Sufficient conditions are obtained for normalized analytic functions $p$ to satisfy the double subordination chain $q_1(z)
Ali+20 more
core +2 more sources
On the assimilation of instructions : stimulus-response associations are implemented but not stimulus-task associations [PDF]
The assimilation of instructions consists of two stages. First, a task model is formed on the basis of instructions. Second, this model is implemented, resulting in highly accessible representations, which enable reflexive behavior that guides the ...
Liefooghe, Baptist+1 more
core +1 more source
One Criterion for Univalency [PDF]
In this note we give one criterion for the functions f ( z ) = z + a 2 z 2 + ⋯ f\left ( z \right ) = z + {a_2}{z^2} + \cdots to be univalent in
Shigeyoshi Owa+2 more
openaire +2 more sources
NEIGHBOURHOODS OF UNIVALENT FUNCTIONS [PDF]
AbstractThe main result shows that a small perturbation of a univalent function is again a univalent function, hence a univalent function has a neighbourhood consisting entirely of univalent functions. For the particular choice of a linear function in the hypothesis of the main theorem, we obtain a corollary which is equivalent to the classical Noshiro–
Nicolae R. Pascu, Mihai N. Pascu
openaire +3 more sources
Boundary distortion estimates for holomorphic maps
We establish some estimates of the the angular derivatives from below for holomorphic self-maps of the unit disk at one and two fixed points of the unit circle provided there is no fixed point inside the unit disk. The results complement Cowen-Pommerenke
Frolova, A.+3 more
core +1 more source
Towards a constructive simplicial model of Univalent Foundations
We provide a partial solution to the problem of defining a constructive version of Voevodsky's simplicial model of univalent foundations. For this, we prove constructive counterparts of the necessary results of simplicial homotopy theory, building on the
Gambino, Nicola, Henry, Simon
core
On a class of univalent functions
AbstractLet A be the class of analytic functions in the unit disk D with the normalization f(0)=f′(0)−1=0. Denote by N the class of functions f∈A which satisfy the condition |−z3(zf(z))‴+f′(z)(zf(z))2−1|≤1,z∈D. We show that functions in N are univalent in D but not necessarily starlike.
Obradović, Milutin+1 more
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Coefficient estimates, Landau's theorem and Lipschitz-type spaces on planar harmonic mappings [PDF]
In this paper, we investigate the properties of locally univalent and multivalent planar harmonic mappings. First, we discuss the coefficient estimates and Landau's Theorem for some classes of locally univalent harmonic mappings, and then we study some ...
Chen, Shaolin+2 more
core
Schwarzian Derivatives and Uniform Local Univalence
Quantitative estimates are obtained for the (finite) valence of functions analytic in the unit disk with Schwarzian derivative that is bounded or of slow growth. A harmonic mapping is shown to be uniformly locally univalent with respect to the hyperbolic
Chuaqui, Martin+2 more
core +2 more sources