𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A new pick-type theorem on the hexagonal lattice

✍ Scribed by Ren Ding; Krzysztof KoŁodziejczyk; John Reay


Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
688 KB
Volume
68
Category
Article
ISSN
0012-365X

No coin nor oath required. For personal study only.

✦ Synopsis


Let L be the lattice of all vertex points in a tiling of the plane by regular hexagons of unit area. Suppose the vertices of a planar polygon P are points of the lattice L, and points of L occur frequently along the edges of P. Then the area of P is A(P) = ;b + ii + &c -1, where b is the number of lattice points on the boundary of P, i is the number of lattice points in the inter;-* .Vm of P, and c is the boundary characteristic of P.


📜 SIMILAR VOLUMES


Some Theorems on the Lattice of Local In
✍ Jan Krajíček 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 738 KB

Math. (1985) ### 2.2. T h e o r e m . A type t E A is meet-irreducible iff it contains a complete theory ( i . e . a theory T i s coprime iff it has the samc type as Some co.mplete theory).

A Kruskal–Katona Type Theorem for the Li
✍ S Bezrukov; A Blokhuis 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 154 KB

We present an analog of the well-known Kruskal-Katona theorem for the poset of subspaces of PG(n, 2) ordered by inclusion. For given k, (k < ) and m the problem is to find a family of size m in the set of -subspaces of PG(n, 2), containing the minimal number of k-subspaces. We introduce two lexicogr

On a Theorem of DJRBASHIAN of the PHRAGM
✍ Vartan Martirosian 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 274 KB

The aim of this paper is to prove the following theorem of the PHRAGMEN-LINDE-LOF type. ## Theorem. Let f ( z ) be analytic in the angular domain and for some p E (0, + -) satistifis the following conditions: a) there exists the boundary function f [ r e q ) ( k i i x l ( 2 a ) ) I ~L p (0, +-) s

A Note on the LaSalle-Type Theorems for
✍ Xuerong Mao 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 135 KB

The main aim of this note is to improve some results obtained in the author's earlier paper (1999, J. Math. Anal. Appl. 236, 350-369). From the improved result follow some useful criteria on the stochastic asymptotic stability and boundedness.