Temat: convex curve - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Artykuł

Skocz do pozycji: 2.

Tytuł:: An upper bound for third Hankel determinant of starlike functions related to shell-like curves connected with Fibonacci numbers
Autorzy:: Sokół, J.
İlhan, S.
Güney, H. Ö.
Powiązania:: https://bibliotekanauki.pl/articles/2052451.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: analytic function
convex function
Fibonacci numbers
Hankel determinant
hell-like curve
starlike function
funkcja analityczna
funkcja wypukła
ciąg Fibonacciego
wyznacznik Hankela
krzywa
funkcja gwiaździsta
Opis:: We investigate the third Hankel determinant problem for some starlike functions in the open unit disc, that are related to shell-like curves and connected with Fibonacci numbers. For this, firstly, we prove a conjecture, posed in [17], for sharp upper bound of second Hankel determinant. In the sequel, we obtain another sharp coefficient bound which we apply in solving the problem of the third Hankel determinant for these functions.
Źródło:: Journal of Mathematics and Applications; 2018, 41; 195-206
1733-6775
2300-9926
Pojawia się w:: Journal of Mathematics and Applications
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Étude des différences de corps convexes plans
Autorzy:: Martinez-Maure, Yves
Powiązania:: https://bibliotekanauki.pl/articles/1294040.pdf
Data publikacji:: 1999
Wydawca:: Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:: Brunn-Minkowski theory
hedgehog
convex curve
support function
Opis:: We characterize the linear space ℋ of differences of support functions of convex bodies of ² and we consider every h ∈ ℋ as the support function of a generalized hedgehog (a rectifiable closed curve having exactly one oriented support line in each direction). The mixed area (for plane convex bodies identified with their support functions) has a symmetric bilinear extension to ℋ which can be interpreted as a mixed area for generalized hedgehogs. We study generalized hedgehogs and we extend the Minkowski inequality.
Źródło:: Annales Polonici Mathematici; 1999, 72, 1; 71-78
0066-2216
Pojawia się w:: Annales Polonici Mathematici
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Indifference Curve Analysis: The Correct and the Incorrect
Autorzy:: Sotelo, José Antonio Manuel Aguirre
Block, Walter E.
Powiązania:: https://bibliotekanauki.pl/articles/489025.pdf
Data publikacji:: 2014
Wydawca:: Instytut Badań Gospodarczych
Tematy:: Indifference curve
convex
concave
budget line
Opis:: The thesis of this paper is that when the indifference curve is concave to the origin, the optimal point on the budget line is not the corner solution on the highest (most north eastern) indifference curve, the analysis all too often offered in the literature, but, rather, somewhat paradoxically, the lowest (most south western) indifference curve. The economics profession, as articulated through the megaphone of intermediate micro economics texts, offers a mixed result in this regard. Some few do offer a correct analysis, but many do not; others ignore the issue entirely. The contribution of the present paper and the aim of our research is to provide a correction of the widespread but erroneous indifference curve analysis that appears in many of our intermediate microeconomics texts. Our methodology is one of contrast: we offer what we see as both the correct and the incorrect versions of indifference curve analysis.
Źródło:: Oeconomia Copernicana; 2014, 5, 4; 7-43
2083-1277
Pojawia się w:: Oeconomia Copernicana
Dostawca treści:: Biblioteka Nauki

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