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Rocky Mountain Journal of Mathematics
VOL. 20 · NO. 4 | Fall 1990
 
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Front Matter
Table of Contents, Rocky Mountain Journal of Mathematics, vol. 20, no. 4, (1990)
Rocky Mountain J. Math. 20 (4), (Fall 1990) Open Access
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G. J. Butler Memorial Conference Editorial
L.H. Erbe, H.I. Freedman
Rocky Mountain J. Math. 20 (4), 765-766, (Fall 1990) Open Access
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Conference Participants
Rocky Mountain J. Math. 20 (4), 767-769, (Fall 1990) Open Access
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Articles
G. J. Butler Publication List
Rocky Mountain J. Math. 20 (4), 771-775, (Fall 1990) DOI: 10.1216/rmjm/1181073041 Open Access
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Coexistence in chemostat-like models
Paul Waltman
Rocky Mountain J. Math. 20 (4), 777-807, (Fall 1990) DOI: 10.1216/rmjm/1181073042 Open Access
No abstract available
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G. J. Butler: Summers on Olympus
Edward J. Barbeau
Rocky Mountain J. Math. 20 (4), 809-819, (Fall 1990) DOI: 10.1216/rmjm/1181073043 Open Access
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A survey of G. J. Butler's research in the qualitative theory of ordinary differential equations
L.H. Erbe
Rocky Mountain J. Math. 20 (4), 821-838, (Fall 1990) DOI: 10.1216/rmjm/1181073044 Open Access
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G. J. Butler's research in mathematical biology
H.I. Freedman
Rocky Mountain J. Math. 20 (4), 839-845, (Fall 1990) DOI: 10.1216/rmjm/1181073045 Open Access
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A sterile release model for control of a pest with two life stages under predation
Hugh J. Barclay, P. Van Den Driessche
Rocky Mountain J. Math. 20 (4), 847-855, (Fall 1990) DOI: 10.1216/rmjm/1181073046 Open Access
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Compound matrices and ordinary differential equations
James S. Muldowney
Rocky Mountain J. Math. 20 (4), 857-872, (Fall 1990) DOI: 10.1216/rmjm/1181073047 Open Access
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Evolutionarily stable strategies depending on population density
R. Cressman
Rocky Mountain J. Math. 20 (4), 873-877, (Fall 1990) DOI: 10.1216/rmjm/1181073048 Open Access
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Some competition models for size-structured populations
J.M. Cushing
Rocky Mountain J. Math. 20 (4), 879-897, (Fall 1990) DOI: 10.1216/rmjm/1181073049 Open Access
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Solvability of two-point boundary value problems for systems of nonlinear differential equations of the form $\bf y^{\bf\pp}=g(t,y,y^\p,y^{\bf\pp})$
L.H. Erbe, W. Krawcewicz, T. Kaczynski
Rocky Mountain J. Math. 20 (4), 899-907, (Fall 1990) DOI: 10.1216/rmjm/1181073050 Open Access
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On the stability of one-predator two-preys systems
M. Farkas
Rocky Mountain J. Math. 20 (4), 909-916, (Fall 1990) DOI: 10.1216/rmjm/1181073051 Open Access
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Exit probabilities for stochastic population models: Initial tendencies for extinction, explosion, or permanence
Thomas C. Gard
Rocky Mountain J. Math. 20 (4), 917-932, (Fall 1990) DOI: 10.1216/rmjm/1181073052 Open Access
KEYWORDS: Stochastic population models, transient behavior
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Numerical extremal methods and biological models
John Gregory, Cantian Lin, Rong Sheng Wang
Rocky Mountain J. Math. 20 (4), 933-945, (Fall 1990) DOI: 10.1216/rmjm/1181073053 Open Access
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Asymptotic conditions for the solvability of a fourth order boundary value problem with periodic boundary conditions
Chaitan Gupta
Rocky Mountain J. Math. 20 (4), 947-966, (Fall 1990) DOI: 10.1216/rmjm/1181073054 Open Access
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Homogeneous models for sexually transmitted diseases
K.P. Hadeler, K. Ngoma
Rocky Mountain J. Math. 20 (4), 967-986, (Fall 1990) DOI: 10.1216/rmjm/1181073055 Open Access
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Right and left disconjugacy in difference equations
Darrel Hankerson
Rocky Mountain J. Math. 20 (4), 987-995, (Fall 1990) DOI: 10.1216/rmjm/1181073056 Open Access
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Positive solutions of a boundary value problem
Darrel Hankerson, Allan Peterson
Rocky Mountain J. Math. 20 (4), 997-1002, (Fall 1990) DOI: 10.1216/rmjm/1181073057 Open Access
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Nodal oscillation and weak oscillation of elliptic equations of order $2m$
V.B. Headley
Rocky Mountain J. Math. 20 (4), 1003-1016, (Fall 1990) DOI: 10.1216/rmjm/1181073058 Open Access
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An index theorem for dissipative semiflows
Josef Hofbauer
Rocky Mountain J. Math. 20 (4), 1017-1031, (Fall 1990) DOI: 10.1216/rmjm/1181073059 Open Access
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The existence of an equilibrium for permanent systems
V. Hutson
Rocky Mountain J. Math. 20 (4), 1033-1040, (Fall 1990) DOI: 10.1216/rmjm/1181073060 Open Access
No abstract available
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Some remarks on the Lusternik-Schnirelman method for non-differentiable functionals invariant with respect to a finite group action
W. Krawcewicz, W. Marzantowicz
Rocky Mountain J. Math. 20 (4), 1041-1049, (Fall 1990) DOI: 10.1216/rmjm/1181073061 Open Access
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Oscillations of difference equations with positive and negative coefficients
G. Ladas
Rocky Mountain J. Math. 20 (4), 1051-1061, (Fall 1990) DOI: 10.1216/rmjm/1181073062 Open Access
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Asymptotic and oscillatory behavior of a class of second order functional differential equations
B.S. Lalli, S.R. Grace
Rocky Mountain J. Math. 20 (4), 1063-1077, (Fall 1990) DOI: 10.1216/rmjm/1181073063 Open Access
No abstract available
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A theoretical justification of the method of harmonic balance for systems with discontinuities
Jack W. Macki, Paolo Nistri, Pietro Zecca
Rocky Mountain J. Math. 20 (4), 1079-1098, (Fall 1990) DOI: 10.1216/rmjm/1181073064 Open Access
KEYWORDS: periodic solution, Differential inclusion, harmonic balance
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Existence of transversal homoclinic points in a degenerative case
Kenneth J. Palmer
Rocky Mountain J. Math. 20 (4), 1099-1118, (Fall 1990) DOI: 10.1216/rmjm/1181073065 Open Access
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Period perturbations of linear problems at resonance on convex domains
Renate Schaaf, Klaus Schmitt
Rocky Mountain J. Math. 20 (4), 1119-1131, (Fall 1990) DOI: 10.1216/rmjm/1181073066 Open Access
KEYWORDS: Dirichlet problem, semilinear elliptic equation, resonance, Convex domain, 35B15, 47H15, 58E07
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Limits of heteroclinic orbits in a competitive model with genetic variation
James F. Selgrade
Rocky Mountain J. Math. 20 (4), 1133-1155, (Fall 1990) DOI: 10.1216/rmjm/1181073067 Open Access
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Montonicity properties of the Michaelis-Menten reactions of enzyme kinetics
D. Siegel, D.W. Lozinski
Rocky Mountain J. Math. 20 (4), 1157-1172, (Fall 1990) DOI: 10.1216/rmjm/1181073068 Open Access
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Microbial growth in periodic gradostats
Hal Smith
Rocky Mountain J. Math. 20 (4), 1173-1194, (Fall 1990) DOI: 10.1216/rmjm/1181073069 Open Access
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Resonance phenomena in cell population chemotherapy models
G.F. Webb
Rocky Mountain J. Math. 20 (4), 1195-1210, (Fall 1990) DOI: 10.1216/rmjm/1181073070 Open Access
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Invasion of a persistent system
Gail S.K. Wolkowicz
Rocky Mountain J. Math. 20 (4), 1217-1234, (Fall 1990) DOI: 10.1216/rmjm/1181073071 Open Access
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Normality for the problem of Bolza with an inequality state constraint
Vera Zeidan, Pierluigi Zezza
Rocky Mountain J. Math. 20 (4), 1235-1248, (Fall 1990) DOI: 10.1216/rmjm/1181073072 Open Access
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Index
Volume Index to Volume 20
Rocky Mountain J. Math. 20 (4), 1249-1252, (Fall 1990) DOI: 10.1216/rmjm/1181073073 Open Access
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