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Volume 30 - December 1984

Contents

Page 3 of 3

Research Article

  • Linear systems of nonoscillatory differential equations with delayed arguments

  • K. Gopalsamy
  • Published online by Cambridge University Press:
    17 April 2009, pp. 307-314
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  • Sufficient conditions are obtained for a not necessarily scalar system of the form

    to be nonoscillatory.

Abstract of Australasian PhD Thesis

  • Solutions of field equations in general relativity with spinor connection

  • L. A. Peters
  • Published online by Cambridge University Press:
    17 April 2009, pp. 477-479
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Abstracts of Australasian PhD Theses

  • Wave propagation in density stratified fluids

  • John Anthony Gear
  • Published online by Cambridge University Press:
    17 April 2009, pp. 315-316
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Research Article

  • A note on subdirectly irreducible rings

  • Shalom Feigelstock
  • Published online by Cambridge University Press:
    17 April 2009, pp. 137-141
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  • Let R be a commutative subdirectly irreducible ring, with minimal ideal M. It is shown that either R is a field, or M2 = 0. A construction is given which yields commutative sub-directly irreducible rings possessing nonzero-divisors, and nonzero nilpotent elements either with a unity element, or without. Such a ring without unity has been constructed by Divinsky. The same technique enables the construction of subdirectly irreducible rings with mixed additive groups.

Author Index

  • Author Index Volumes 21 (1980) To 30 (1984)

  • Published online by Cambridge University Press:
    17 April 2009, pp. 481-510
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Front matter

  • BAZ volume 30 issue 3 Cover and Front matter

  • Published online by Cambridge University Press:
    17 April 2009, pp. f1-f4
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Abstracts of Australasian PhD Theses

  • Minimum mean squared error estimation

  • Victor Charles Drastik
  • Published online by Cambridge University Press:
    17 April 2009, pp. 317-318
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Research Article

  • Almost complex structures on four-dimensional complete intersections

  • Howard Hiller
  • Published online by Cambridge University Press:
    17 April 2009, pp. 143-152
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  • Suppose X is a 4-dimensional complete intersection in CPr+4 of multidegree d1, …, dr. We show that X supports infinitely many almost complex structures for exactly 8 possible multi-degrees. In particular, a hypersurface of degree d in CP5 admits infinitely many almost complex structures if and only if d = 2 or 6. This generalizes a result of E. Thomas [4] for CP4. We give also some tables of possible Todd genera and a result for complex surfaces.

  • Coproducts of algebras and derivations on categories

  • B. J. Day
  • Published online by Cambridge University Press:
    17 April 2009, pp. 153-156
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  • Coproducts and tensor products of algebras for essentially algebraic theories are exhibited as Kan extensions and relationships with derivations on monoidal closed categories are described.

Abstracts of Australasian PhD Theses

  • The Regge calculus in numerical relativity

  • Leo Brewin
  • Published online by Cambridge University Press:
    17 April 2009, pp. 319-320
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Back matter

  • BAZ volume 30 issue 3 Cover and Back matter

  • Published online by Cambridge University Press:
    17 April 2009, pp. b1-b3
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Front matter

  • BAZ volume 30 issue 2 Cover and Front matter

  • Published online by Cambridge University Press:
    17 April 2009, pp. f1-f2
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Abstracts of Australian PhD Theses

  • Time series in medical research

  • Leslie J. Hills
  • Published online by Cambridge University Press:
    17 April 2009, pp. 157-158
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Back matter

  • BAZ volume 30 issue 2 Cover and Back matter

  • Published online by Cambridge University Press:
    17 April 2009, pp. b1-b2
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Abstracts of Australian PhD Theses

  • A finite element approach to molecular vibration

  • M. J. Hamilton
  • Published online by Cambridge University Press:
    17 April 2009, pp. 159-160
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Front matter

  • BAZ volume 30 issue 1 Cover and Front matter

  • Published online by Cambridge University Press:
    17 April 2009, pp. f1-f2
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Back matter

  • BAZ volume 30 issue 1 Cover and Back matter

  • Published online by Cambridge University Press:
    17 April 2009, pp. b1-b2
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Page 3 of 3