20. Gompertz Equation The Gompertz equation dy = y(a - b ln y), alegog where a and b are parameters, is used in actuarial studies, and to model growth of objects as diverse as tumors and %3D dt organizations. (a) Show that the solution to the Gompertz equation is ea/bece. HINT: Let z = chain rule to get a linear equation for dz/dt. y(t) In y, and use the (b) Solve the IVP for this equation with y(0) = yo- (c) Describe the limiting value for y(t) as t → 0o. %3D Assume that a >0, and consider the cases b>0 and b<0.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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20. Gompertz Equation The Gompertz equation
dy
= y(a – b ln y),
dt
where a and b are parameters, is used in actuarial studies,
and to model growth of objects as diverse as tumors and
organizations.
stanoo o
(a) Show that the solution to the Gompertz equation is
y(t) =
chain rule to get a linear equation for dz/dt.
ea/bece". HINT: Let z = In y, and use the
(b) Solve the IVP for this equation with y(0) = yo-
%3D yo•
%3D
(c) Describe the limiting value for y(t) as t o.
Assume that a > 0, and consider the cases b > 0 and
b<0.
Transcribed Image Text:20. Gompertz Equation The Gompertz equation dy = y(a – b ln y), dt where a and b are parameters, is used in actuarial studies, and to model growth of objects as diverse as tumors and organizations. stanoo o (a) Show that the solution to the Gompertz equation is y(t) = chain rule to get a linear equation for dz/dt. ea/bece". HINT: Let z = In y, and use the (b) Solve the IVP for this equation with y(0) = yo- %3D yo• %3D (c) Describe the limiting value for y(t) as t o. Assume that a > 0, and consider the cases b > 0 and b<0.
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