Existence of Many Sign Changing Non Radial Solutions for Semilinear Elliptic Problems on Annular Domains

Existence of Many Sign Changing Non Radial Solutions for Semilinear Elliptic Problems on Annular Domains

Date: August 1998
Creator: Finan, Marcel Basil
Description: The aim of this work is the study of the existence and multiplicity of sign changing nonradial solutions to elliptic boundary value problems on annular domains.
Contributing Partner: UNT Libraries
[Photograph of Dr. H. C. Parrish]

[Photograph of Dr. H. C. Parrish]

Date: unknown
Creator: unknown
Description: Photograph of Dr. H. C. Parrish of the North Texas Math Department. He sits at a desk, and looks toward the camera. A shelf of cubbies can be seen in the background.
Contributing Partner: UNT Archives
[Photograph of Dr. H. C. Parrish]

[Photograph of Dr. H. C. Parrish]

Date: unknown
Creator: unknown
Description: Photograph of Dr. H. C. Parrish pf the North Texas Math Department. He stands and talks on a rotary telephone.
Contributing Partner: UNT Archives
[Photograph of Dr. H. C. Parrish]

[Photograph of Dr. H. C. Parrish]

Date: unknown
Creator: unknown
Description: Photograph of Dr. H. C. Parrish of the North Texas Math Department. He wears a suit and tie, and sits on a stool in front of a pegboard.
Contributing Partner: UNT Archives
Two Axiomatic Definitions of the Natural Numbers

Two Axiomatic Definitions of the Natural Numbers

Date: June 1970
Creator: Rhoads, Lana Sue
Description: The purpose of this thesis is to present an axiomatic foundation for the development of the natural numbers from two points of view. It makes no claim at originality other than at the point of organization and presentation of previously developed works.
Contributing Partner: UNT Libraries
Some Fundamental Properties of Valuations Defined on a Field

Some Fundamental Properties of Valuations Defined on a Field

Date: January 1969
Creator: Doerr, James C.
Description: The purpose of this thesis is to develop some properties of a special class of functions called valuations. The study begins with and examination of the properties of valuations defined on an arbitrary field, F, and later, consideration is given to valuations defined on the field of rational numbers. The concept of a pseud-valuation is introduced and an investigation is made of the properties of pseudo-valuations.
Contributing Partner: UNT Libraries
A Genesis for Compact Convex Sets

A Genesis for Compact Convex Sets

Date: May 1969
Creator: Ferguson, Ronald D.
Description: This paper was written in response to the following question: what conditions are sufficient to guarantee that if a compact subset A of a topological linear space L^3 is not convex, then for every point x belonging to the complement of A relative to the convex hull of A there exists a line segment yz such that x belongs to yz and y belongs to A and z belongs to A? Restated in the terminology of this paper the question bay be given as follow: what conditions may be imposed upon a compact subset A of L^3 to insure that A is braced?
Contributing Partner: UNT Libraries
Some Fundamental Properties of Categories

Some Fundamental Properties of Categories

Date: June 1968
Creator: Gardner, Harold L.
Description: This paper establishes a basis for abelian categories, then gives the statement and proof of two equivalent definitions of an abelian category, the development of the basic theory of such categories, and the proof of some theorems involving this basic theory.
Contributing Partner: UNT Libraries
Some Generalizations in the Theory of Summable Series

Some Generalizations in the Theory of Summable Series

Date: August 1950
Creator: Penner, Jimmie G.
Description: It will be our purpose to study a generalized definition of sum of a series and the restrictions which must be placed upon it in order that it shall satisfy the generally accepted requirements of any generalized definition of sum of a series. We shall then proceed to investigate the possibilities of further generalizing this process.
Contributing Partner: UNT Libraries
Separation Properties

Separation Properties

Date: December 1970
Creator: Garvin, Billy Ray
Description: The problem with which this paper is concerned is that of investigating a class of topological properties commonly called separation properties. A topological space which satisfies only the definition may be very limited in open sets. By use of the separation properties, specific families of open sets can be guaranteed.
Contributing Partner: UNT Libraries
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