scholarly journals On meromorphic functions sharing five one-point or two-point sets IM

2010 ◽  
Vol 86 (1) ◽  
pp. 6-9
Author(s):  
Manabu Shirosaki
2020 ◽  
Vol 26 (3) ◽  
pp. 334-344
Author(s):  
Takahiro Kongo ◽  
Manabu Shirosaki

We show that if two meromorphic functions on the complex plane shring some three-point sets IM, then they are identical under some conditions.


2010 ◽  
Vol 40 (1) ◽  
pp. 101-113
Author(s):  
Yusei Sekitani ◽  
Manabu Shirosaki

2003 ◽  
Vol 40 (3) ◽  
pp. 269-286 ◽  
Author(s):  
H. Nyklová

In this paper we study a problem related to the classical Erdos--Szekeres Theorem on finding points in convex position in planar point sets. We study for which n and k there exists a number h(n,k) such that in every planar point set X of size h(n,k) or larger, no three points on a line, we can find n points forming a vertex set of a convex n-gon with at most k points of X in its interior. Recall that h(n,0) does not exist for n = 7 by a result of Horton. In this paper we prove the following results. First, using Horton's construction with no empty 7-gon we obtain that h(n,k) does not exist for k = 2(n+6)/4-n-3. Then we give some exact results for convex hexagons: every point set containing a convex hexagon contains a convex hexagon with at most seven points inside it, and any such set of at least 19 points contains a convex hexagon with at most five points inside it.


2010 ◽  
Vol 36 (8) ◽  
pp. 1073-1083 ◽  
Author(s):  
Xu-Fang PANG ◽  
Ming-Yong PANG ◽  
Chun-Xia XIAO
Keyword(s):  

1992 ◽  
Author(s):  
L. V. Meisel ◽  
M. A. Johnson

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