Combinatorics

Combinatorics PDF Author: M. Hall Jr.
Publisher: Springer Science & Business Media
ISBN: 940101826X
Category : Mathematics
Languages : en
Pages : 480

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Book Description
Combinatorics has come of age. It had its beginnings in a number of puzzles which have still not lost their charm. Among these are EULER'S problem of the 36 officers and the KONIGSBERG bridge problem, BACHET's problem of the weights, and the Reverend T.P. KIRKMAN'S problem of the schoolgirls. Many of the topics treated in ROUSE BALL'S Recreational Mathe matics belong to combinatorial theory. All of this has now changed. The solution of the puzzles has led to a large and sophisticated theory with many complex ramifications. And it seems probable that the four color problem will only be solved in terms of as yet undiscovered deep results in graph theory. Combinatorics and the theory of numbers have much in common. In both theories there are many prob lems which are easy to state in terms understandable by the layman, but whose solution depends on complicated and abstruse methods. And there are now interconnections between these theories in terms of which each enriches the other. Combinatorics includes a diversity of topics which do however have interrelations in superficially unexpected ways. The instructional lectures included in these proceedings have been divided into six major areas: 1. Theory of designs; 2. Graph theory; 3. Combinatorial group theory; 4. Finite geometry; 5. Foundations, partitions and combinatorial geometry; 6. Coding theory. They are designed to give an overview of the classical foundations of the subjects treated and also some indication of the present frontiers of research.

Combinatorics

Combinatorics PDF Author: M. Hall Jr.
Publisher: Springer Science & Business Media
ISBN: 940101826X
Category : Mathematics
Languages : en
Pages : 480

Get Book Here

Book Description
Combinatorics has come of age. It had its beginnings in a number of puzzles which have still not lost their charm. Among these are EULER'S problem of the 36 officers and the KONIGSBERG bridge problem, BACHET's problem of the weights, and the Reverend T.P. KIRKMAN'S problem of the schoolgirls. Many of the topics treated in ROUSE BALL'S Recreational Mathe matics belong to combinatorial theory. All of this has now changed. The solution of the puzzles has led to a large and sophisticated theory with many complex ramifications. And it seems probable that the four color problem will only be solved in terms of as yet undiscovered deep results in graph theory. Combinatorics and the theory of numbers have much in common. In both theories there are many prob lems which are easy to state in terms understandable by the layman, but whose solution depends on complicated and abstruse methods. And there are now interconnections between these theories in terms of which each enriches the other. Combinatorics includes a diversity of topics which do however have interrelations in superficially unexpected ways. The instructional lectures included in these proceedings have been divided into six major areas: 1. Theory of designs; 2. Graph theory; 3. Combinatorial group theory; 4. Finite geometry; 5. Foundations, partitions and combinatorial geometry; 6. Coding theory. They are designed to give an overview of the classical foundations of the subjects treated and also some indication of the present frontiers of research.

Can Logic Arrays be Kept Flexible?

Can Logic Arrays be Kept Flexible? PDF Author: William F. King (III)
Publisher:
ISBN:
Category : Algebra, Boolean
Languages : en
Pages : 14

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Book Description
This report introduces the modifiable logic array concept and describes early investigations concerning a modifiable eight-neighbor array. The problems of analysis and synthesis in such a topological limited space are considered.

The Preparation and Structure of Thin Films of Boron on Silicon

The Preparation and Structure of Thin Films of Boron on Silicon PDF Author: E. T. Peters
Publisher:
ISBN:
Category : Boron
Languages : en
Pages : 14

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Book Description


Asymptotic Solutions of Dipoles in a Semi-infinite Medium

Asymptotic Solutions of Dipoles in a Semi-infinite Medium PDF Author: Kondagunta U. Sivaprasad
Publisher:
ISBN:
Category : Antennas (Electronics)
Languages : en
Pages : 62

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Book Description
A theoretical analysis is made of the electromagnetic fields in two homogeneous media separated by a plane interface with a point source located in the denser medium. The solution is expressed in the form of integrals which cannot be evaluated explicitly. Asymptotic evaluations of the integrals have been made by many investigators using the saddlepoint technique. In the present work, all known asymptotic results are presented in one comprehensive form, using a modification of the method suggested by Lighthill for the asymptotic evaluation of the Fourier integrals. The regions of validity of the solutions are indicated wherever possible. The advantage of this method over others is its ease and simplicity. The present results agree term by term with the earlier ones of Banos and Wesley (1953-1954), and Paul (1959), who investigated the case of a source and receiver close to the interface, and an arbitrary location of source and receiver, respectively. The results obtained in the report are also compared with those of Stein (1955). (Author).

An Anomaly in the Resistivity-temperature Profile of Ultrapure Phenanthrene

An Anomaly in the Resistivity-temperature Profile of Ultrapure Phenanthrene PDF Author: Paul A. Andrews
Publisher:
ISBN:
Category : Phenanthrene
Languages : en
Pages : 14

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Book Description


Report on Research at AFCRL

Report on Research at AFCRL PDF Author: Air Force Cambridge Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 322

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Book Description
Summaries are given of research in the following fields: upper atmosphere physics, microwave physics, space physics, terrestrial sciences, optical physics, data sciences, meteorology, solid state, aerospace instrumentation.

A Short Course on Error Correcting Codes

A Short Course on Error Correcting Codes PDF Author: N.J.A. Sloane
Publisher: Springer
ISBN: 3709128641
Category : Computers
Languages : en
Pages : 78

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Book Description


Government-wide Index to Federal Research & Development Reports

Government-wide Index to Federal Research & Development Reports PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1794

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Book Description


OAR Cumulative Index of Research Results

OAR Cumulative Index of Research Results PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 576

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Book Description


OAR Quarterly Index of Current Research Results

OAR Quarterly Index of Current Research Results PDF Author: United States. Air Force. Office of Aerospace Research
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 576

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Book Description