Proceedings of the American Mathematical Society

Contents of Volume 41, Number 1
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Localization at injectives in complete categories

J. Lambek and B. A. Rattray

Proc. Amer. Math. Soc. 41 (1973), 1-9

DOI: https://doi.org/10.1090/S0002-9939-1973-0414651-5

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Finite dimensional group rings

Ralph W. Wilkerson

Proc. Amer. Math. Soc. 41 (1973), 10-16

DOI: https://doi.org/10.1090/S0002-9939-1973-0318212-8

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A regular determinant of binomial coefficients

Philip C. Tonne

Proc. Amer. Math. Soc. 41 (1973), 17-23

DOI: https://doi.org/10.1090/S0002-9939-1973-0318178-0

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Hochschild dimension of a separably generated field

B. L. Osofsky

Proc. Amer. Math. Soc. 41 (1973), 24-30

DOI: https://doi.org/10.1090/S0002-9939-1973-0318129-9

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Residually $F_{p}$-groups, for many primes $p$, are orderable

A. H. Rhemtulla

Proc. Amer. Math. Soc. 41 (1973), 31-33

DOI: https://doi.org/10.1090/S0002-9939-1973-0332615-7

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Maximal ideals in polynomial rings

Anthony V. Geramita

Proc. Amer. Math. Soc. 41 (1973), 34-36

DOI: https://doi.org/10.1090/S0002-9939-1973-0318123-8

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A class of pure subgroups of completely decomposable abelian groups

David M. Arnold

Proc. Amer. Math. Soc. 41 (1973), 37-44

DOI: https://doi.org/10.1090/S0002-9939-1973-0325806-2

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Variants of cyclic difference sets

H. J. Ryser

Proc. Amer. Math. Soc. 41 (1973), 45-50

DOI: https://doi.org/10.1090/S0002-9939-1973-0317960-3

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Borel’s fixed point theorem for Kaehler manifolds and an application

Andrew J. Sommese

Proc. Amer. Math. Soc. 41 (1973), 51-54

DOI: https://doi.org/10.1090/S0002-9939-1973-0322217-0

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On the orderability of Stone-Čech compactifications

S. Purisch

Proc. Amer. Math. Soc. 41 (1973), 55-56

DOI: https://doi.org/10.1090/S0002-9939-1973-0326662-9

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A Geršgorin inclusion set for the field of values of a finite matrix

Charles R. Johnson

Proc. Amer. Math. Soc. 41 (1973), 57-60

DOI: https://doi.org/10.1090/S0002-9939-1973-0318191-3

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On $\sum _{n}\leq _{x}(\sigma ^{\ast } (n))$ and $\sum _{n}\leq _{x}(\phi ^{\ast } (n))$

R. Sitaramachandrarao and D. Suryanarayana

Proc. Amer. Math. Soc. 41 (1973), 61-66

DOI: https://doi.org/10.1090/S0002-9939-1973-0319922-9

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Lie and Jordan structure in prime rings with derivations

Ram Awtar

Proc. Amer. Math. Soc. 41 (1973), 67-74

DOI: https://doi.org/10.1090/S0002-9939-1973-0318233-5

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Semilattice congruences viewed from quasi-orders

Takayuki Tamura

Proc. Amer. Math. Soc. 41 (1973), 75-79

DOI: https://doi.org/10.1090/S0002-9939-1973-0333048-X

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Stieltjes differential-boundary operators

Allan M. Krall

Proc. Amer. Math. Soc. 41 (1973), 80-86

DOI: https://doi.org/10.1090/S0002-9939-1973-0320415-3

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Spherical curves that bound immersed discs

George K. Francis

Proc. Amer. Math. Soc. 41 (1973), 87-93

DOI: https://doi.org/10.1090/S0002-9939-1973-0321112-0

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Dynamic stability of equilibrium states of the extensible beam

R. W. Dickey

Proc. Amer. Math. Soc. 41 (1973), 94-102

DOI: https://doi.org/10.1090/S0002-9939-1973-0328290-8

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Markov operators, peak points, and Choquet points

Robert E. Atalla

Proc. Amer. Math. Soc. 41 (1973), 103-109

DOI: https://doi.org/10.1090/S0002-9939-1973-0318861-7

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Regularly varying sequences

J. Galambos and E. Seneta

Proc. Amer. Math. Soc. 41 (1973), 110-116

DOI: https://doi.org/10.1090/S0002-9939-1973-0323963-5

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Note on a limit-point criterion

Ian Knowles

Proc. Amer. Math. Soc. 41 (1973), 117-119

DOI: https://doi.org/10.1090/S0002-9939-1973-0320425-6

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Recapturing a holomorphic function on an annulus from its mean boundary values

Chin Hung Ching and Charles K. Chui

Proc. Amer. Math. Soc. 41 (1973), 120-126

DOI: https://doi.org/10.1090/S0002-9939-1973-0320326-3

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Operators with left inverses similar to their adjoints

S. M. Patel

Proc. Amer. Math. Soc. 41 (1973), 127-131

DOI: https://doi.org/10.1090/S0002-9939-1973-0322558-7

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Bounded evaluations for linear elliptic differential operators

Thomas Bagby and James E. Brennan

Proc. Amer. Math. Soc. 41 (1973), 132-136

DOI: https://doi.org/10.1090/S0002-9939-1973-0318655-2

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Explicit conditions for the factorization of $n$th order linear differential operators

Anton Zettl

Proc. Amer. Math. Soc. 41 (1973), 137-145

DOI: https://doi.org/10.1090/S0002-9939-1973-0320413-X

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Escape from the unit interval under the transformation $x\mapsto \lambda x(1-x)$

Bruce R. Henry

Proc. Amer. Math. Soc. 41 (1973), 146-150

DOI: https://doi.org/10.1090/S0002-9939-1973-0322109-7

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On the oscillation of certain third order linear differential equations

G. J. Etgen and C. D. Shih

Proc. Amer. Math. Soc. 41 (1973), 151-155

DOI: https://doi.org/10.1090/S0002-9939-1973-0320433-5

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On nonequivalent normalized unconditional bases for Banach spaces

Julien Hennefeld

Proc. Amer. Math. Soc. 41 (1973), 156-158

DOI: https://doi.org/10.1090/S0002-9939-1973-0320716-9

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The geometry of convex curves tending to $1$ in the unit disc

U. V. Satyanarayana and Max L. Weiss

Proc. Amer. Math. Soc. 41 (1973), 159-166

DOI: https://doi.org/10.1090/S0002-9939-1973-0318497-8

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Tangential asymptotic values of bounded analytic functions

U. V. Satyanarayana and Max L. Weiss

Proc. Amer. Math. Soc. 41 (1973), 167-172

DOI: https://doi.org/10.1090/S0002-9939-1973-0318498-X

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On a theorem concerning Baire functions

C. T. Tucker

Proc. Amer. Math. Soc. 41 (1973), 173-178

DOI: https://doi.org/10.1090/S0002-9939-1973-0318834-4

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On the boundedness of pseudo-differential operators

Chin Hung Ching

Proc. Amer. Math. Soc. 41 (1973), 179-182

DOI: https://doi.org/10.1090/S0002-9939-1973-0320823-0

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Oscillation theorems for solutions of hyperbolic equations

Charles Kahane

Proc. Amer. Math. Soc. 41 (1973), 183-188

DOI: https://doi.org/10.1090/S0002-9939-1973-0324185-4

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von Neumann factors are perfect

Aubrey Wulfsohn

Proc. Amer. Math. Soc. 41 (1973), 189-192

DOI: https://doi.org/10.1090/S0002-9939-1973-0318912-X

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Boundedness properties for linear ordinary differential equations

David Lowell Lovelady

Proc. Amer. Math. Soc. 41 (1973), 193-196

DOI: https://doi.org/10.1090/S0002-9939-1973-0328202-7

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The approximation property does not imply the bounded approximation property

T. Figiel and W. B. Johnson

Proc. Amer. Math. Soc. 41 (1973), 197-200

DOI: https://doi.org/10.1090/S0002-9939-1973-0341032-5

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Projection constants for $C(S)$ spaces with the separable projection property

John Warren Baker

Proc. Amer. Math. Soc. 41 (1973), 201-204

DOI: https://doi.org/10.1090/S0002-9939-1973-0320707-8

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Complex iterated radicals

Leon Gerber

Proc. Amer. Math. Soc. 41 (1973), 205-210

DOI: https://doi.org/10.1090/S0002-9939-1973-0318721-1

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An inverse-function theorem for a class of multivalued functions

Stephen M. Robinson

Proc. Amer. Math. Soc. 41 (1973), 211-218

DOI: https://doi.org/10.1090/S0002-9939-1973-0320746-7

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A Schwarz lemma for canonical algebraic manifolds

Myung H. Kwack

Proc. Amer. Math. Soc. 41 (1973), 219-222

DOI: https://doi.org/10.1090/S0002-9939-1973-0326008-6

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Common fixed points for semigroups of mappings

Anthony T. Lau and Chi Song Wong

Proc. Amer. Math. Soc. 41 (1973), 223-228

DOI: https://doi.org/10.1090/S0002-9939-1973-0322837-3

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Weakly continuous nonlinear accretive operators in reflexive Banach spaces

W. E. Fitzgibbon

Proc. Amer. Math. Soc. 41 (1973), 229-236

DOI: https://doi.org/10.1090/S0002-9939-1973-0324496-2

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Measurability of lattice operations in a cone

Kohur Gowrisankaran

Proc. Amer. Math. Soc. 41 (1973), 237-240

DOI: https://doi.org/10.1090/S0002-9939-1973-0346479-9

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Gronwall’s inequality in $n$ independent variables

Eutiquio C. Young

Proc. Amer. Math. Soc. 41 (1973), 241-244

DOI: https://doi.org/10.1090/S0002-9939-1973-0320493-1

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An example concerning normed subspaces of locally convex spaces

Robert H. Lohman

Proc. Amer. Math. Soc. 41 (1973), 245-246

DOI: https://doi.org/10.1090/S0002-9939-1973-0322461-2

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On the scalar curvature and sectional curvatures of a Kaehler submanifold

Bang-yen Chen and Koichi Ogiue

Proc. Amer. Math. Soc. 41 (1973), 247-250

DOI: https://doi.org/10.1090/S0002-9939-1973-0319087-3

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Differentiable projections and differentiable semigroups

J. P. Holmes

Proc. Amer. Math. Soc. 41 (1973), 251-254

DOI: https://doi.org/10.1090/S0002-9939-1973-0375378-1

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The interval of disk packing exponents

J. B. Wilker

Proc. Amer. Math. Soc. 41 (1973), 255-260

DOI: https://doi.org/10.1090/S0002-9939-1973-0350628-6

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A characterization of Pareto surfaces

Louis J. Billera and Robert E. Bixby

Proc. Amer. Math. Soc. 41 (1973), 261-267

DOI: https://doi.org/10.1090/S0002-9939-1973-0325163-1

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Some combinatorial theorems equivalent to the prime ideal theorem

R. H. Cowen

Proc. Amer. Math. Soc. 41 (1973), 268-273

DOI: https://doi.org/10.1090/S0002-9939-1973-0319769-3

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Covering dimension in finite-dimensional metric spaces

Japheth Hall

Proc. Amer. Math. Soc. 41 (1973), 274-277

DOI: https://doi.org/10.1090/S0002-9939-1973-0322828-2

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Weak laws for dependent sums

William L. Steiger

Proc. Amer. Math. Soc. 41 (1973), 278-281

DOI: https://doi.org/10.1090/S0002-9939-1973-0319242-2

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Removable sets for classes of functions

Anthony G. O’Farrell

Proc. Amer. Math. Soc. 41 (1973), 282-286

DOI: https://doi.org/10.1090/S0002-9939-1973-0322791-4

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Spectra in representations of semisimple Lie group

Sidney C. Scull

Proc. Amer. Math. Soc. 41 (1973), 287-293

DOI: https://doi.org/10.1090/S0002-9939-1973-0376967-0

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On the form of the finite-dimensional projective representations of an infinite abelian group

N. B. Backhouse

Proc. Amer. Math. Soc. 41 (1973), 294-298

DOI: https://doi.org/10.1090/S0002-9939-1973-0318393-6

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Closing stable and unstable manifolds on the two sphere

Clark Robinson

Proc. Amer. Math. Soc. 41 (1973), 299-303

DOI: https://doi.org/10.1090/S0002-9939-1973-0321141-7

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A totally ordered Baire space for which Blumberg’s theorem fails

Ronnie Levy

Proc. Amer. Math. Soc. 41 (1973), 304

DOI: https://doi.org/10.1090/S0002-9939-1973-0324630-4

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The tangent bundle of an $H$-manifold

Jerome Kaminker

Proc. Amer. Math. Soc. 41 (1973), 305-308

DOI: https://doi.org/10.1090/S0002-9939-1973-0319187-8

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Dispersed images of topological spaces and uncomplemented subspaces of $C(X)$

John Warren Baker

Proc. Amer. Math. Soc. 41 (1973), 309-314

DOI: https://doi.org/10.1090/S0002-9939-1973-0320984-3

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Continuous functions induced by shape morphisms

James Keesling

Proc. Amer. Math. Soc. 41 (1973), 315-320

DOI: https://doi.org/10.1090/S0002-9939-1973-0334141-8

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The radical of $L^{\infty }(G)^{\ast }$

Edmond E. Granirer

Proc. Amer. Math. Soc. 41 (1973), 321-324

DOI: https://doi.org/10.1090/S0002-9939-1973-0326302-9

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A measure-theoretic proof of a theorem on reflexivity

D. M. Oberlin

Proc. Amer. Math. Soc. 41 (1973), 325-326

DOI: https://doi.org/10.1090/S0002-9939-1973-0317010-9

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A new proof of a theorem of Cassels and Pfister

Larry J. Gerstein

Proc. Amer. Math. Soc. 41 (1973), 327-328

DOI: https://doi.org/10.1090/S0002-9939-1973-0319952-7

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Index of Fredholm operators

Kung Wei Yang

Proc. Amer. Math. Soc. 41 (1973), 329-330

DOI: https://doi.org/10.1090/S0002-9939-1973-0318946-5

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Bernoulli shifts are determined by their factor algebras

Paul C. Shields

Proc. Amer. Math. Soc. 41 (1973), 331-332

DOI: https://doi.org/10.1090/S0002-9939-1973-0320280-4

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