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A semiparametric Cox-Aalen transformation model with censored data
Title
A semiparametric Cox-Aalen transformation model with censored data
Author
Ning, Xi, Pan, Yinghao, Sun, Yanqing, Gilbert, Peter B.
Date Created
2023
Subjects--Topical
Mathematical models, Models and modelmaking
Description
We propose a broad class of so-called Cox–Aalen transformation models that incorporate both multiplicative and additive covariate effects on the baseline hazard function within a transformation. The proposed models provide a highly flexible and ve...
Assessing guaranteed minimum income benefits and rationality of exercising reset options in variable annuities
Title
Assessing guaranteed minimum income benefits and rationality of exercising reset options in variable annuities
Author
Ocejo Monge, Adriana, Jones, Riley F.
Subjects--Topical
Variable annuities, Risk (Insurance)
Description
A variable annuity is an equity-linked financial product typically offered by insurance companies. The policyholder makes an upfront payment to the insurance company and, in return, the insurer is required to make a series of payments starting at ...
Exploring the teaching and learning of functions
Title
Exploring the teaching and learning of functions
Author
Athanasopoulou, Anna, Saenz-Ludlow, Adalira
Date Created
2022, 2022, 2022
Subjects--Topical
Mathematics--Study and teaching, Education, Higher
Partitioning the real line into Borel sets
Title
Partitioning the real line into Borel sets
Author
Brian, Will
Date Created
2023
Subjects--Topical
Analytic functions, Borel sets
Description
For which infinite cardinals κ is there a partition of the real line R into precisely κ Borel sets? Work of Lusin, Souslin, and Hausdorff shows that R can be partitioned into ℵ1 Borel sets. But other than this, we show that the spectrum of possibl...