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Articles 26221 - 26250 of 27382
Full-Text Articles in Physical Sciences and Mathematics
Comparison Principle And Non Linear Contract In Abstract Spaces, V. Lakshmikantham, Jerome Eisenfeld
Comparison Principle And Non Linear Contract In Abstract Spaces, V. Lakshmikantham, Jerome Eisenfeld
Mathematics Technical Papers
The theory of differential and integral equations exploits comparison and iterative techniques which do not fall under the Contractive Mapping Principle. For they make use of partial orderings and maximal solutions; concepts which have no significance in a metric space. These methods take their proper place in the theory of cones [1], [2]. In this paper, Banach's Contraction Mapping Principle and comparison and iterative methods are brought together under a single roof which houses various results from the theory of differential equations [3], in addition to an interesting generalization of Banach's Theorem [4]. One 'It thus led, in a natural …
On Hamiltonian - Connected Graphs, James E. Williamson
On Hamiltonian - Connected Graphs, James E. Williamson
Dissertations
No abstract provided.
Linear Operators Between Nonarchimedean Banach Spaces, Krishnamachari S. Nadathur
Linear Operators Between Nonarchimedean Banach Spaces, Krishnamachari S. Nadathur
Dissertations
I Preliminaries
The purpose of this dissertation is to extend some classical results on compact and Fredholm operators to the case in which the linear spaces involved are non-archimedean normed linear spaces over a valued field.
In Section I are listed some definitions and basic concepts that are needed for a study of non-archimedean valuation theory. The concepts of tensor products of nonarchimedean Banach spaces over a spherically complete field F, and of the tensor product of operators, are also dealt with in this section.
The proofs of most of the results in Section II are based on the known …
Study Of Dynamic Programming And Gambling Systems., N. D. Prabhakar Dr.
Study Of Dynamic Programming And Gambling Systems., N. D. Prabhakar Dr.
Doctoral Theses
The body of methods known as Dynamic Programming (d.p.) was developed by Bellman and was successfully applied by him to solve practical problems in diverse fields (see 12] and the pa pers cited there.). These methods revolved around an intuitively appealing principle which Bellman called the principle of optimatity. A general formulation of d.p. problem was given by Blackwell (3, s] which is narrower in scope than Bollman's but includes many important applications i12) and offers a proper framework for asking the many inte- resting and mathematically sophisticated questions that arise in d.p.. Strauch, Brown, Maitra, Furukawa, Dantas, Hinderer etc., …
S-Algebras On Sets In C To The Power Of N, Donald R. Chalice
S-Algebras On Sets In C To The Power Of N, Donald R. Chalice
Mathematics Faculty Publications
We give conditions which are necessary and sufficient for polynomial approximation of any continuous function on a compact subset of Cn.
Infinite Product Spaces Under The Tychonoff And Goofynoff Topologies, James A. Capps
Infinite Product Spaces Under The Tychonoff And Goofynoff Topologies, James A. Capps
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
The only topology considered for the infinite product of topological spaces in most current topology texts and research papers is the Tychonoff topology. Yet there is another topology which seems to be a much more topologically natural generalization of the usual "box" topology of finite products. We call this natural generalization the Goofynoff topology and exploit its properties. The use of the word "Goofynoff" (pronounced Goof'-n-off) is not universal and does not refer to any person of that name. In the few references to this topology that can be found, it is usually called simply the Box Topology. None of …
Nonlinear Stochastic Integral-Equation Of Hammerstein Type, William J. Padgett
Nonlinear Stochastic Integral-Equation Of Hammerstein Type, William J. Padgett
Faculty Publications
No abstract provided.
A General Lr(K) Parser Building Algorithm, Thomas Joshua Sager
A General Lr(K) Parser Building Algorithm, Thomas Joshua Sager
Mathematics & Statistics ETDs
The problem is to find an efficient algorithm that, given the productions of a context-free grammar G, will discover whether G is LR(k) for given k and if it is build an efficient parser for G . The algorithm is given in Section 8. It is essentially a synthesis of the best parts of Knuth's and DeRemer's algorithms. On simple LR(k) grarranars it yields a result equivalent to DeRemer's algorithm, and like Knuth's algorithm it will work on all LR(k) grammars.
Local Connectivity In Graphs, Donald W. Vanderjagt
Local Connectivity In Graphs, Donald W. Vanderjagt
Dissertations
No abstract provided.
Severance Classes And Multiplicative Arithmetic Functions, Timothy B. Carroll
Severance Classes And Multiplicative Arithmetic Functions, Timothy B. Carroll
Dissertations
No abstract provided.
Loss Probabilities In Queueing Processes, R. P. Singh
Loss Probabilities In Queueing Processes, R. P. Singh
Masters Theses
No abstract provided.
Maximal And Minimal Topologies., Asit Baran Raha Dr.
Maximal And Minimal Topologies., Asit Baran Raha Dr.
Doctoral Theses
Given a topological property Ï€ and a pon-void set X, let Ï€(X) denote the set of topologies on X with property Ï€. 7 (X) is obviously partially ordered by inclusion, A topologi- cal space (X,T) is minimal if T is a minimal element in T (X). (X, T) is said to be maximal Ï€ if T1 1s a maximalelement in Ï€(X), The study of maximal and minimal topological space is, as a matter of fact, a study of maximal Ï€ and minimal Ï€ spaces. Topological spaces closely related to minimal T sp aces are T-closed and KatetoV T spaces, (X,T) …
Studies In Boolean Algebras And Measure Theory., K. P. S. Bhaskara Rao Dr.
Studies In Boolean Algebras And Measure Theory., K. P. S. Bhaskara Rao Dr.
Doctoral Theses
This Thesis is divided into six chapters the first three chapters constituting studies in Boolean algebras and the last three chapters constituting studies in measure theory. We give below a sketch of the main problems treated in this Thesis.A De composition theorem due to Sobczyk and Hammer (28] implies that strongly continuous charges on Boolean algebras play a role similar to that of nonatomic measures on Boolean g-algebras. CHAPTER 1. Rudin [25] and Knowles [14] gave necessary and sufficient conditions for the Boral o-ficld of a compact Hausdorff space to admit a nonatomic measure. But there are no necessary and …
Contributions To Methodology Of Construction Of Consistent Index Number., Dodla Sai Prasada Rao Dr.
Contributions To Methodology Of Construction Of Consistent Index Number., Dodla Sai Prasada Rao Dr.
Doctoral Theses
International variation in national product is a subject of considerable interest, and any meaningful comparison of national product or per capita national income has to be in termo of a common currency. An intertemporal comparison for the same country at two points of time is mote meaningful in real terms, or in other words when the currency unit is adjusted for change in the general price level between the two points of time. In the same manner, the level of output or of consumption of a group of persons belonging to a region or to a particular socio-economio group can …
Quasi-Unmixed Local Rings And Quasi-Subspaces, Peter G. Sawtelle
Quasi-Unmixed Local Rings And Quasi-Subspaces, Peter G. Sawtelle
Mathematics and Statistics Faculty Research & Creative Works
The concept of a quasi-subspace is defined so that it plays a role relative to quasi-unmixedness analogous to that of subspace to unmixedness. This definition is used to characterize quasi-unmixed local rings. © 1973 American Mathematical Society.
A First Order Method For Differential Equations Of Neutral Type, R. N. Castleton, L. J. Grimm
A First Order Method For Differential Equations Of Neutral Type, R. N. Castleton, L. J. Grimm
Mathematics and Statistics Faculty Research & Creative Works
A first order method is presented for solution of the initial-value problem for a differential equation of neutral type with implicit delay in the critical case where the time-lag is zero and the method of stepwise integration does not apply. A convergence theorem is proved, and numerical examples are given. © 1973, American Mathematical Society.
On The Bordism Ring Of Complex Projective Space, Claude Schochet
On The Bordism Ring Of Complex Projective Space, Claude Schochet
Mathematics Faculty Research Publications
The bordism ring MU∗(CP∞) is central to the theory of formal groups as applied by D. Quillen, J. F. Adams, and others recently to complex cobordism. In the present paper, rings E∗(CP∞) are considered, where E is an oriented ring spectrum, R=π∗(E), and pR=0 for a prime p. It is known that E∗(CP∞) is freely generated as an R-module by elements {βτ|r≧0}. The ring structure, however, is not known. It is shown that the elements {β …
Brief Theory Of Coherent Processor, Richard C. Heyser
Brief Theory Of Coherent Processor, Richard C. Heyser
Unpublished Writings
The particular coherent data processor which is to be discussed relies heavily upon several basic concepts. These concepts represent a departure from conventional practice and hence the theoretical description must await their presentation in order to gain some continuity. We will accordingly present the underlying assumptions and signal physics prior to description of the processor itself.
Radiation Problem, Gerald L. Fuller
Radiation Problem, Gerald L. Fuller
Honors Theses
A sphere of radius 'a' which is radioactive and which has an average range 'b' in the sphere. What fraction of total radiation will escape the sphere?
Modern Art Through Geometric Eyes, Janice M. West
Modern Art Through Geometric Eyes, Janice M. West
Honors Theses
When tourists--even homefolks--go through a modern art museum, many opinions are accumulated. Some people may have chills when they see a certain painting, while others get a sick feeling of dizziness when they see the same one. In fact, if there were an opinion box at the exit of an art show, I imagine you could almost accurately count the different opinions by counting the total number of people who viewed the show. Yet, there is one opinion that most 'ole foggies' (and I use the term loosely) would agree upon, and that is this: "Why that's nothing but a …
Imbedding Problems In Graph Theory, William Goodwin
Imbedding Problems In Graph Theory, William Goodwin
Honors Theses
For some years there has been interest among mathematicians in determining the different ways in which certain graphs can be imbedded in given surfaces. M.P. VanStraten in 1948, determined that it is possible to imbed the graph K3,3 (which is the graph representing the famous three houses, three utilities problem) in the torus in only two ways. She then used this fact to show that the graph representing the configuration of Desargues (containing K3,3 as a subgraph) has genus two. One major source of motivation for the work on imbedding problems has been their relation to coloring problems …
Tchebycheff Approximation On A Discrete Point Set: Algorithms Old And New, William Edward Mcbride
Tchebycheff Approximation On A Discrete Point Set: Algorithms Old And New, William Edward Mcbride
Doctoral Dissertations
"Several linear and nonlinear algorithms for solving the discrete Tchebycheff problem are compared in this study. The Lawson algorithm is compared with two more well-known methods of linear Tchebycheff approximation. A new acceleration scheme for the Lawson algorithm is introduced and its performance is tested with an already existing acceleration technique. The new version is found to be better than the previous one but not as effective as the traditional Exchange method.
A nonlinear version of Lawson's algorithm is proposed for the solution of problems having approximating functions which are varisolvent. Some linear theorems of Lawson are extended to the …
Some Results On Quasi-Uniform Spaces, Karen Sylvia Carter
Some Results On Quasi-Uniform Spaces, Karen Sylvia Carter
Doctoral Dissertations
"An example of a quasi-uniform space which is complete but not strongly complete is constructed. We also give an example to show that a T1 space does not necessarily have a T1 strong completion.
The definition of Cauchy filter is discussed. An alternate definition, referred to as C-filter, is considered. A construction of a C-completion is given and it is shown that if a quasi-pseudometric is complete, then the corresponding quasi-uniform structure is C-complete.
Conjugate quasi-uniform spaces are discussed. A theorem relating a transitive base of a quasi-uniform structure to a transitive base of the conjugate structure is …
On Generalized Matrix Functions, John Hawkins, Adi Ben-Israel
On Generalized Matrix Functions, John Hawkins, Adi Ben-Israel
John B. Hawkins
No abstract provided.
Nonnegative And Alternating Expansions Of One Set Of Orthogonal Polynomials In Terms Of Another, William F. Trench
Nonnegative And Alternating Expansions Of One Set Of Orthogonal Polynomials In Terms Of Another, William F. Trench
William F. Trench
No abstract provided.
Biometrics Of Bilateral Symmetry In Plants., T. Davis Dr.
Biometrics Of Bilateral Symmetry In Plants., T. Davis Dr.
Doctoral Theses
During the past ten deendes, observation rolating to ayune try, asymmatry, dis-oyame try, radlal symmetry, rotatiÉ”nal Bymne try, bilateral aymme try and ambidextry in the fields of bo tany, Boology, geology, chemiatry, eryatellography, physics, astronomy, engineering, mathematics, sunio, poetry and art vere recorded by various scientists. The prevent treatise is a sua- mary of an elaborato study on bilaterai syame try or microrinage symse try occurring in vari us plant organs. Unlike moet of the earlior reports, the problem here has been takled unified on a quantitative basis, thereby ereating situations where sophisti-cated techniques of statietios could be effectively employed. …
Nonnegative Matrices Whose Inverses Are M-Matrices, Thomas L. Markham
Nonnegative Matrices Whose Inverses Are M-Matrices, Thomas L. Markham
Faculty Publications
A characterization of a class of totally nonnegative matrices whose inverses are M-matrices is given. It is then shown that if A is nonnegative of order n and A^-1 is an M-matrix, then the almost principal minors of A of all orders are nonnegative.
Stochastic Integro-Differential Equations Of Volterra Type, William J. Padgett, Chris P. Tsokos
Stochastic Integro-Differential Equations Of Volterra Type, William J. Padgett, Chris P. Tsokos
Faculty Publications
No abstract provided.
Flexible Algebras Of Degree Two, Joseph H. Mayne
Flexible Algebras Of Degree Two, Joseph H. Mayne
Mathematics and Statistics: Faculty Publications and Other Works
All known examples of simple flexible power-associative algebras of degree two are either commutative or noncommutative Jordan. In this paper we construct an algebra which is partially stable but not commutative and not a noncommutative Jordan algebra. We then investigate the multiplicative structure of those algebras which are partially stable over an algebraically closed field of characteristic p A 2, 3, 5. The results obtained are then used to develop conditions under which such algebras must be commutative.
Linear Estimation: The Kalman-Bucy Filter, William Douglas Schindel
Linear Estimation: The Kalman-Bucy Filter, William Douglas Schindel
Graduate Theses - Mathematics
The problem of linear dynamic estimation, its solution as developed by Kalman and Bucy, and interpretations, properties and illustrations of that solution are discussed. The central problem considered is the estimation of the system state vector X, describing a linear dynamic system governed by
dx/dt = F(t)X(t) + G(t)U(t)
Y(t) = H(t)X(t) + V(t)
for observations of Y (system output), where V is a random observation-corrupting process, and U is a random system driving process.
An extension of the Kalman-Bucy filter to estimation in the absence of priori knowledge of the random process U and V is developed and illustrated.