Majorization Results for Subclasses of Starlike Functions Based on the Sine and Cosine Functions
Sign Up to like & getrecommendations! Published in 2019 at "Bulletin of the Iranian Mathematical Society"
DOI: 10.1007/s41980-019-00262-y
Abstract: The object of this paper was to study two majorization results for the subclasses $$S^*_{s}$$ S s ∗ and $$S^*_{c}$$ S c ∗ of starlike functions, which are, respectively, associated with the sine and cosine… read more here.
Keywords: sine cosine; cosine functions; majorization results; starlike functions ... See more keywords
Operator Cosine Functions and Boundary Value Problems
Sign Up to like & getrecommendations! Published in 2019 at "Doklady Mathematics"
DOI: 10.1134/s1064562419030177
Abstract: For the first time, the theory of strongly continuous cosine operator functions (COF) has been applied to study the correct solvability of boundary value problems for second-order linear differential equations in a Banach space (elliptic… read more here.
Keywords: operator cosine; cosine functions; boundary value; value ... See more keywords
Fractals as Julia and Mandelbrot Sets of Complex Cosine Functions via Fixed Point Iterations
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DOI: 10.3390/sym15020478
Abstract: In this manuscript, we explore stunning fractals as Julia and Mandelbrot sets of complexvalued cosine functions by establishing the escape radii via a four-step iteration scheme extended with s-convexity. We furnish some illustrations to determine… read more here.
Keywords: julia mandelbrot; fixed point; mandelbrot sets; fractals julia ... See more keywords