| 1. |
A Generalization of the Direct and Inverse Problem for the Radial Schrödinger Equation |
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Studies in Applied Mathematics,
Volume 58,
Issue 3,
1978,
Page 187-207
Harry E. Moses,
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摘要:
We consider the operatorsH0= −d2/dr2andH1= −d2/dr2+V(r) (0
ISSN:0022-2526
DOI:10.1002/sapm1978583187
年代:1978
数据来源: WILEY
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| 2. |
Flow of a Newtonian Fluid between Eccentric Rotating Cylinders and Related Problems |
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Studies in Applied Mathematics,
Volume 58,
Issue 3,
1978,
Page 209-247
J. Y. Kazaki,
R. S. Rivlin,
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摘要:
An incompressible Newtonian fluid is contained in the annular region between two infinite cylinders, one or both of which rotate with constant angular velocities about their respective axes. The first‐order inertial correction to the forces exerted by the fluid on the cylinders is obtained in explicit algebraic form. The results are applied to the related problem in which the inner cylinder executes a planetary motion about the axis of the outer cylinder. They are also applied to the problem of the transverse sedimentation of a long cylinder in a half space of fluid bounded by a rigid wall. Certain anomalies which arise in this case are note
ISSN:0022-2526
DOI:10.1002/sapm1978583209
年代:1978
数据来源: WILEY
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| 3. |
A Model Nonlinear Problem Having a Continuous Locus of Singular Points |
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Studies in Applied Mathematics,
Volume 58,
Issue 3,
1978,
Page 249-262
F. A. Howes,
S. V. Parter,
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摘要:
The asymptotic behavior of solutions of a singularly perturbed boundary value problem whose reduced equation has continuous bran,ches of singular points is investigated. In particular, unexpected limiting values of solutions for certain choices of the boundary conditions are found by means ofa prioriestimates.
ISSN:0022-2526
DOI:10.1002/sapm1978583249
年代:1978
数据来源: WILEY
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| 4. |
The Alpha Function of a Matroid—I. Transversal Matroids |
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Studies in Applied Mathematics,
Volume 58,
Issue 3,
1978,
Page 263-275
Joseph. P. S. Kung,
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摘要:
Letnbe the nullity function of the matroidG(S). The Mason alpha function is defined on subsetsAofSby the recursion α(A)=n(A)−∑F⊂Aα(F), the summation being over all flatsFstrictly contained inA. The alpha function may be viewed as the first difference of the nullity. We study the behavior of a under strong maps, and apply our results to proving Mason's alpha criterion: a matroid is the dual of a transversal matroid if and only if its alpha function is non
ISSN:0022-2526
DOI:10.1002/sapm1978583263
年代:1978
数据来源: WILEY
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| 5. |
Some Optimization Problems with Bulk‐Service Queues |
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Studies in Applied Mathematics,
Volume 58,
Issue 3,
1978,
Page 277-290
Arnold Barnett,
Daniel J. Kleitman,
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摘要:
An optimal control problem for a single bulk‐service queue is considered. Theorems that characterize the optimal control strategy in some circumstances are proved; they complement earlier results by Deb and Serfozo for a comparable problem. Most of the analysis uses direct probabilistic reasoning rather than specialized methods such as dynamic programming. Some illustrative examples are presente
ISSN:0022-2526
DOI:10.1002/sapm1978583277
年代:1978
数据来源: WILEY
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