Proceedings of the American Mathematical Society

Contents of Volume 19, Number 3
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A criterion for $n-n$ oscillations in differential equations of order $2n$

Don B. Hinton

Proc. Amer. Math. Soc. 19 (1968), 511-518

DOI: https://doi.org/10.1090/S0002-9939-1968-0226111-3

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A characterization of analyticity. II

Kenneth O. Leland

Proc. Amer. Math. Soc. 19 (1968), 519-527

DOI: https://doi.org/10.1090/S0002-9939-1968-0235083-7

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On the uniform stability of a perturbed linear functional differential equation

Nelson Onuchic

Proc. Amer. Math. Soc. 19 (1968), 528-532

DOI: https://doi.org/10.1090/S0002-9939-1968-0227574-X

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On a class of perturbations of the harmonic oscillator

Philip Hartman

Proc. Amer. Math. Soc. 19 (1968), 533-540

DOI: https://doi.org/10.1090/S0002-9939-1968-0224927-0

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A remark on the question of uniqueness for the Tricomi problem

L. M. Sibner

Proc. Amer. Math. Soc. 19 (1968), 541-543

DOI: https://doi.org/10.1090/S0002-9939-1968-0225022-7

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Hadamard products of schlicht functions

Lawrence Zalcman

Proc. Amer. Math. Soc. 19 (1968), 544-548

DOI: https://doi.org/10.1090/S0002-9939-1968-0224800-8

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On an inequality considered by Robertson

James A. Jenkins

Proc. Amer. Math. Soc. 19 (1968), 549-550

DOI: https://doi.org/10.1090/S0002-9939-1968-0224802-1

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Variation convergence for Bernstein polynomials

Martin Price

Proc. Amer. Math. Soc. 19 (1968), 551-554

DOI: https://doi.org/10.1090/S0002-9939-1968-0226259-3

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On extremals of composite variational problems

David A. Sánchez

Proc. Amer. Math. Soc. 19 (1968), 555-559

DOI: https://doi.org/10.1090/S0002-9939-1968-0229107-0

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Some boundary properties of the Riemann mapping function

Maynard G. Arsove

Proc. Amer. Math. Soc. 19 (1968), 560-568

DOI: https://doi.org/10.1090/S0002-9939-1968-0225982-4

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Measures with separable orbits

R. Larsen

Proc. Amer. Math. Soc. 19 (1968), 569-572

DOI: https://doi.org/10.1090/S0002-9939-1968-0231134-4

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Semisimplicity of group algebras of vector-valued functions

D. Z. Spicer

Proc. Amer. Math. Soc. 19 (1968), 573-577

DOI: https://doi.org/10.1090/S0002-9939-1968-0226412-9

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A function which is weakly of bounded variation but does not have the Gowurin $\omega$-property

D. H. Tucker

Proc. Amer. Math. Soc. 19 (1968), 578-580

DOI: https://doi.org/10.1090/S0002-9939-1968-0410362-9

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Rings of continuous functions on open convex subsets of $R^{n}$

Lyle E. Pursell

Proc. Amer. Math. Soc. 19 (1968), 581-585

DOI: https://doi.org/10.1090/S0002-9939-1968-0229007-6

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On a conjecture of DeMarr on partially ordering topological spaces.

R. W. Hansell

Proc. Amer. Math. Soc. 19 (1968), 586-588

DOI: https://doi.org/10.1090/S0002-9939-1968-0238275-6

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On the hyperfinite $\textrm {II}_{1}$-factor

Shôichirô Sakai

Proc. Amer. Math. Soc. 19 (1968), 589-591

DOI: https://doi.org/10.1090/S0002-9939-1968-0226421-X

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Some irregular distributions modulo $1$

Robert Kaufman

Proc. Amer. Math. Soc. 19 (1968), 592-594

DOI: https://doi.org/10.1090/S0002-9939-1968-0224567-3

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A class of curves on which polynomials approximate efficiently

D. J. Newman and L. Raymon

Proc. Amer. Math. Soc. 19 (1968), 595-599

DOI: https://doi.org/10.1090/S0002-9939-1968-0225056-2

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On norms of idempotent measures

Sadahiro Saeki

Proc. Amer. Math. Soc. 19 (1968), 600-602

DOI: https://doi.org/10.1090/S0002-9939-1968-0225102-6

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Systems of Toeplitz operators on $H^{2}$

H. R. Pousson

Proc. Amer. Math. Soc. 19 (1968), 603-608

DOI: https://doi.org/10.1090/S0002-9939-1968-0225188-9

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Some integral formulas for closed hypersurfaces in Euclidean space

Jamal K. Shahin

Proc. Amer. Math. Soc. 19 (1968), 609-613

DOI: https://doi.org/10.1090/S0002-9939-1968-0227906-2

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The bordism class of a quasi-symplectic manifold

Peter S. Landweber

Proc. Amer. Math. Soc. 19 (1968), 614-616

DOI: https://doi.org/10.1090/S0002-9939-1968-0226650-5

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Chromatic number of Cartesian sum of two graphs

Kung-wei Yang

Proc. Amer. Math. Soc. 19 (1968), 617-618

DOI: https://doi.org/10.1090/S0002-9939-1968-0223273-9

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A note on an example of Stallings

R. B. Sher

Proc. Amer. Math. Soc. 19 (1968), 619-620

DOI: https://doi.org/10.1090/S0002-9939-1968-0225312-8

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Embedding a $p$-sphere in a product of $p$-spheres

Richard Z. Goldstein

Proc. Amer. Math. Soc. 19 (1968), 621-623

DOI: https://doi.org/10.1090/S0002-9939-1968-0225331-1

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On a point-segment decomposition of $E^{3}$ defined by McAuley

Lawrence O. Cannon

Proc. Amer. Math. Soc. 19 (1968), 624-630

DOI: https://doi.org/10.1090/S0002-9939-1968-0225303-7

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Some characterizations of the Freudenthal compactification of a semicompact space

R. F. Dickman

Proc. Amer. Math. Soc. 19 (1968), 631-633

DOI: https://doi.org/10.1090/S0002-9939-1968-0225290-1

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An arc as the inverse limit of a single nowhere strictly monotone bonding map on $[0, 1]$

J. W. Rogers

Proc. Amer. Math. Soc. 19 (1968), 634-638

DOI: https://doi.org/10.1090/S0002-9939-1968-0224057-8

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On the metastable homotopy of $\textrm {O}(n)$

Mark Mahowald

Proc. Amer. Math. Soc. 19 (1968), 639-641

DOI: https://doi.org/10.1090/S0002-9939-1968-0225324-4

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On the extensive derivative

R. H. Bowman

Proc. Amer. Math. Soc. 19 (1968), 642-648

DOI: https://doi.org/10.1090/S0002-9939-1968-0225262-7

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Sufficient conditions for a closed set to lie on the boundary of a $3$-cell

L. D. Loveland

Proc. Amer. Math. Soc. 19 (1968), 649-652

DOI: https://doi.org/10.1090/S0002-9939-1968-0227961-X

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Sequentially $1-\textrm {ULC}$ surfaces in $E^{3}$

C. E. Burgess and L. D. Loveland

Proc. Amer. Math. Soc. 19 (1968), 653-659

DOI: https://doi.org/10.1090/S0002-9939-1968-0227962-1

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Whyburn’s conjecture for $C^{2}$ maps

Morris L. Marx

Proc. Amer. Math. Soc. 19 (1968), 660-661

DOI: https://doi.org/10.1090/S0002-9939-1968-0226604-9

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A change of rings theorem

Lance W. Small

Proc. Amer. Math. Soc. 19 (1968), 662-666

DOI: https://doi.org/10.1090/S0002-9939-1968-0223412-X

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On finite groups whose $p$-Sylow subgroup is a $\textrm {T}.\textrm {I}.$ set

Henry S. Leonard

Proc. Amer. Math. Soc. 19 (1968), 667-670

DOI: https://doi.org/10.1090/S0002-9939-1968-0228588-6

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A Bol loop isomorphic to all loop isotopes

D. A. Robinson

Proc. Amer. Math. Soc. 19 (1968), 671-672

DOI: https://doi.org/10.1090/S0002-9939-1968-0223482-9

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Some remarks on a class of matrix inequalities

S. G. Williamson

Proc. Amer. Math. Soc. 19 (1968), 673-677

DOI: https://doi.org/10.1090/S0002-9939-1968-0224630-7

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The distribution of $k\textrm {th}$ power residues and nonresidues

James H. Jordan

Proc. Amer. Math. Soc. 19 (1968), 678-680

DOI: https://doi.org/10.1090/S0002-9939-1968-0225717-5

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On a theorem in complete $\mathfrak {A}$-adic rings

Bernard Kolman

Proc. Amer. Math. Soc. 19 (1968), 681-684

DOI: https://doi.org/10.1090/S0002-9939-1968-0224608-3

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Laws in nilpotent-by-finite groups

John Cossey

Proc. Amer. Math. Soc. 19 (1968), 685-688

DOI: https://doi.org/10.1090/S0002-9939-1968-0224691-5

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A cohomological characterization of finite nilpotent groups

W. J. Wong

Proc. Amer. Math. Soc. 19 (1968), 689-691

DOI: https://doi.org/10.1090/S0002-9939-1968-0229728-5

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Simple groups are scarce

Larry Dornhoff

Proc. Amer. Math. Soc. 19 (1968), 692-696

DOI: https://doi.org/10.1090/S0002-9939-1968-0233885-4

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Free products of ordered semigroups

R. E. Johnson

Proc. Amer. Math. Soc. 19 (1968), 697-700

DOI: https://doi.org/10.1090/S0002-9939-1968-0227279-5

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Totally integrally closed rings

Edgar Enochs

Proc. Amer. Math. Soc. 19 (1968), 701-706

DOI: https://doi.org/10.1090/S0002-9939-1968-0224600-9

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On the size of the Brauer group

Armand Brumer and Michael Rosen

Proc. Amer. Math. Soc. 19 (1968), 707-711

DOI: https://doi.org/10.1090/S0002-9939-1968-0225769-2

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The open case for simple alternative rings

M. Slater

Proc. Amer. Math. Soc. 19 (1968), 712-715

DOI: https://doi.org/10.1090/S0002-9939-1968-0224668-X

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The base conversion theorem

David W. Matula

Proc. Amer. Math. Soc. 19 (1968), 716-723

DOI: https://doi.org/10.1090/S0002-9939-1968-0234908-9

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On principal solutions of linear differential equations

Steven Bank

Proc. Amer. Math. Soc. 19 (1968), 724-732

DOI: https://doi.org/10.1090/S0002-9939-1968-0252727-4

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Logarithms of matrices

Burrell W. Helton

Proc. Amer. Math. Soc. 19 (1968), 733-738

DOI: https://doi.org/10.1090/S0002-9939-1968-0227197-2

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A class of linear transformations which can be written as the product of projections

John B. Hawkins and William J. Kammerer

Proc. Amer. Math. Soc. 19 (1968), 739-745

DOI: https://doi.org/10.1090/S0002-9939-1968-0225195-6

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A compatibility theorem for two point boundary problems

E. J. Pellicciaro

Proc. Amer. Math. Soc. 19 (1968), 746-748

DOI: https://doi.org/10.1090/S0002-9939-1968-0224901-4

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A generalized two-point boundary value problem

J. W. Bebernes and Robert Gaines

Proc. Amer. Math. Soc. 19 (1968), 749-754

DOI: https://doi.org/10.1090/S0002-9939-1968-0226098-3

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An oscillation criterion for second-order linear differential equations

W. J. Coles

Proc. Amer. Math. Soc. 19 (1968), 755-759

DOI: https://doi.org/10.1090/S0002-9939-68-99981-4

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On computing the index in three dimensions

K. R. Meyer

Proc. Amer. Math. Soc. 19 (1968), 760-763

DOI: https://doi.org/10.1090/S0002-9939-1968-0225342-6

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The field of multisymmetric functions

Arthur Mattuck

Proc. Amer. Math. Soc. 19 (1968), 764-765

DOI: https://doi.org/10.1090/S0002-9939-1968-0225774-6

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A semishrinking basis which is not shrinking

J. R. Retherford

Proc. Amer. Math. Soc. 19 (1968), 766

DOI: https://doi.org/10.1090/S0002-9939-1968-0225144-0

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