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pro vyhledávání: '"Richard Marcuson"'
Autor:
Richard Marcuson
Publikováno v:
Statistics in Medicine. 2:327-330
This paper points out that the permutational covariance matrix of the multivariate generalization of Gehan's test on censored survival data enjoys the useful property that a generalized inverse may be explicitly computed. This leads to an exceedingly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad6331511f1c16b2a0899bce01ed1783
https://doi.org/10.1002/sim.4780020304
https://doi.org/10.1002/sim.4780020304
Autor:
Richard Marcuson
Publikováno v:
Linear and Multilinear Algebra. 47:49-55
Recently, Marcuson extended the classical construction of Tits systems in Steinberg groups to include the Kac-Moody Steinberg groups associated with the infinite dimensional versions of the great Lie algebras. If these Lie algebras and their Kac-Mood
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e90449c389cac8f53754ae7e1f8e97e
https://doi.org/10.1080/03081080008818631
https://doi.org/10.1080/03081080008818631
Autor:
Richard Marcuson
Publikováno v:
Tsukuba J. Math. 20, no. 1 (1996), 65-69
Let $G(H)$ be the Chevalley (Steinberg) Kac-Moody group of the Kac-Moody Lie algebra $L$. If $\sigma$ is the canonical homomorphism of $H$ onto $G$, and $\{B_{G}, N_{G}\}$ is the Tits system in $G$, then $\{\sigma^{-1}(B_{G}),\sigma^{-1}(N_{G})\}$ is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f446311873854ce79038c4f93b0185c
https://tsukuba.repo.nii.ac.jp/records/15681
https://tsukuba.repo.nii.ac.jp/records/15681
Autor:
Richard Marcuson
Publikováno v:
Biometrical Journal. 38:887-891
Many of the common permutation tests, particularly those from survival analysis, are special cases of a more general methodology. They are based on a single covariance matrix which is simple and can be derived by elementary means. It is, however, sur
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https://doi.org/10.1002/bimj.4710380714
https://doi.org/10.1002/bimj.4710380714
Publikováno v:
Nutrition Research. 12:1051-1063
The influence of a 1.75 g dose of ascorbic acid on subsequent 4-h urinary excretion of calcium and free dopamine, norepinephrine, and epinephrine was investigated in 38 young women. Small increases, relative to control values from the same subjects,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff690e9334422d4c6ee3f8a7ced55a0a
https://doi.org/10.1016/s0271-5317(05)80494-4
https://doi.org/10.1016/s0271-5317(05)80494-4
Autor:
Richard Marcuson
Publikováno v:
The Mathematical Gazette. 79:359-360
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a92031c2d0fa5f22a67d1c41ec5c05d
https://doi.org/10.2307/3618314
https://doi.org/10.2307/3618314
Autor:
Richard Marcuson
Publikováno v:
Teaching Mathematics and its Applications. 14:130-131
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba9b6f789f8fedc515c36a1984af40fd
https://doi.org/10.1093/teamat/14.3.130
https://doi.org/10.1093/teamat/14.3.130
Autor:
Richard Marcuson, E. Nordbrock
Publikováno v:
Biometrical Journal. 23:461-465
The exact generalization of GEHAN's (1965) two-sample test for arbitrarily censored survival data has been overlooked by subsequent work on the multisample problem. We give this general covariance matrix and show how it may be used in test procedures
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https://explore.openaire.eu/search/publication?articleId=doi_________::0f26b423efec0a4c8f0f0b11d74815f9
https://doi.org/10.1002/bimj.4710230506
https://doi.org/10.1002/bimj.4710230506
Publikováno v:
American Journal of Epidemiology. 114:836-844
The Sphygmetrics SR-2 Automatic Blood Pressure Recorder uses an infrasonic technique for detecting artery wall motion to estimate systemic arterial pressure and produces a permanent record of the results. It therefore is potentially useful in reducin
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https://doi.org/10.1093/oxfordjournals.aje.a113254
https://doi.org/10.1093/oxfordjournals.aje.a113254
Autor:
Richard Marcuson, Roberto E. Altschul
Publikováno v:
Communications in Statistics - Theory and Methods. 8:271-281
Standard resulrs on the extrema of quotients of quadratic forms are extended to the non-negative definite case. The maximum and the set over which it is achieved are characterized explicitly both in terms of generalized inverse matrices and generaliz
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https://doi.org/10.1080/03610927908827758
https://doi.org/10.1080/03610927908827758