The name is absent



Rectilinear Drawing         53

density for the drawing, and Fe is the similar density cor-
responding to the erasure (so that
Fi≥Fe everywhere), then
the final drawing clearly corresponds to the density function
F = Fd-Fe≥0.

A second variant of our problem is obtained if we allow
only a single
uniform erasure all over the plane, i.e., modify
F≥k>0 to F — k, where F is the density function for the
given drawing and the constant
k corresponds to the uniform
erasure in question.

For our later purposes it is convenient to select a certain
point
O in the plane as center for a system of rectangular
coordinates
x, y and of related polar coordinates r, θ. Here r
is regarded as positive or negative while θ is an angular
coordinate of period 2τr so that (r,
θ) and (— r, θ+π) will

denote the same point. Thus we may regard the density F
as a function of r and θ of period 2π: F = F(r, θ), with
F( —
r, 0+7r) = F{re θ~). Similarly we may specify a line I



More intriguing information

1. The name is absent
2. Party Groups and Policy Positions in the European Parliament
3. Alzheimer’s Disease and Herpes Simplex Encephalitis
4. Stillbirth in a Tertiary Care Referral Hospital in North Bengal - A Review of Causes, Risk Factors and Prevention Strategies
5. AN ANALYTICAL METHOD TO CALCULATE THE ERGODIC AND DIFFERENCE MATRICES OF THE DISCOUNTED MARKOV DECISION PROCESSES
6. Return Predictability and Stock Market Crashes in a Simple Rational Expectations Model
7. Tastes, castes, and culture: The influence of society on preferences
8. The name is absent
9. The name is absent
10. The name is absent
11. The name is absent
12. Are combination forecasts of S&P 500 volatility statistically superior?
13. The name is absent
14. Constrained School Choice
15. Industrial Employment Growth in Spanish Regions - the Role Played by Size, Innovation, and Spatial Aspects
16. The name is absent
17. Do imputed education histories provide satisfactory results in fertility analysis in the Western German context?
18. Evolutionary Clustering in Indonesian Ethnic Textile Motifs
19. Social Cohesion as a Real-life Phenomenon: Exploring the Validity of the Universalist and Particularist Perspectives
20. Declining Discount Rates: Evidence from the UK