5 research outputs found
More on discrete convexity
In several recent papers some concepts of convex analysis were extended to
discrete sets. This paper is one more step in this direction. It is well known
that a local minimum of a convex function is always its global minimum. We
study some discrete objects that share this property and provide several
examples of convex families related to graphs and to two-person games in normal
form
Stability and Spectral Properties in the Max Algebra with Applications in Ranking Schemes
This thesis is concerned with the correspondence between the max algebra and
non-negative linear algebra. It is motivated by the Perron-Frobenius theory
as a powerful tool in ranking applications. Throughout the thesis, we consider
max-algebraic versions of some standard results of non-negative linear algeb-
ra. We are specifically interested in the spectral and stability properties of
non-negative matrices. We see that many well-known theorems in this context
extend to the max algebra. We also consider how we can relate these results
to ranking applications in decision making problems. In particular, we focus
on deriving ranking schemes for the Analytic Hierarchy Process (AHP).
We start by describing fundamental concepts that will be used throughout the
thesis after a general introduction. We also state well-known results in both
non-negative linear algebra and the max algebra.
We are next interested in the characterisation of the spectral properties of mat-
rix polynomials. We analyse their relation to multi-step difference equations.
We show how results for matrix polynomials in the conventional algebra carry
over naturally to the max-algebraic setting. We also consider an extension of
the so-called Fundamental Theorem of Demography to the max algebra. Using
the concept of a multigraph, we prove that a number of inequalities related
to the spectral radius of a matrix polynomial are also true for its largest max
eigenvalue.
We are next concerned with the asymptotic stability of non-negative matrices
in the context of dynamical systems. We are motivated by the relation of
P-matrices and positive stability of non-negative matrices. We discuss how
equivalent conditions connected with this relation echo similar results over
the max algebra. Moreover, we consider extensions of the properties of sets
of P-matrices to the max algebra. In this direction, we highlight the central
role of the max version of the generalised spectral radius.
We then focus on ranking applications in multi-criteria decision making prob-
lems. In particular, we consider the Analytic Hierarchy Process (AHP) which
is a method to deal with these types of problems. We analyse the classical
Eigenvalue Method (EM) for the AHP and its max-algebraic version for the
single criterion case. We discuss how to treat multiple criteria within the
max-algebraic framework. We address this generalisation by considering the
multi-criteria AHP as a multi-objective optimisation problem. We consider
three approaches within the framework of multi-objective optimisation, and
use the optimal solution to provide an overall ranking scheme in each case.
We also study the problem of constructing a ranking scheme using a combi-
natorial approach. We are inspired by the so-called Matrix Tree Theorem for
Markov Chains. It connects the spectral theory of non-negative matrices with
directed spanning trees. We prove that a similar relation can be established
over the max algebra. We consider its possible applications to decision making
problems.
Finally, we conclude with a summary of our results and suggestions for future
extensions of these
Hypohamiltonian and almost hypohamiltonian graphs
This Dissertation is structured as follows. In Chapter 1, we give a short historical overview and define fundamental concepts. Chapter 2 contains a clear narrative of the progress made towards finding the smallest planar hypohamiltonian graph, with all of the necessary theoretical tools and techniques--especially Grinberg's Criterion. Consequences of this progress are distributed over all sections and form the leitmotif of this Dissertation. Chapter 2 also treats girth restrictions and hypohamiltonian graphs in the context of crossing numbers. Chapter 3 is a thorough discussion of the newly introduced almost hypohamiltonian graphs and their connection to hypohamiltonian graphs. Once more, the planar case plays an exceptional role. At the end of the chapter, we study almost hypotraceable graphs and Gallai's problem on longest paths. The latter leads to Chapter 4, wherein the connection between hypohamiltonicity and various problems related to longest paths and longest cycles are presented. Chapter 5 introduces and studies non-hamiltonian graphs in which every vertex-deleted subgraph is traceable, a class encompassing hypohamiltonian and hypotraceable graphs. We end with an outlook in Chapter 6, where we present a selection of open problems enriched with comments and partial results
Kant in English: An Index
Kant in English: An Index / By Daniel Fidel Ferrer.
©Daniel Fidel Ferrer, 2017. Pages 1 to 2675.
Includes bibliographical references. Index.
1. Ontology. 2. Metaphysics. 3. Philosophy, German. 4. Thought and thinking. 5. Kant, Immanuel, 1724-1804. 6. Practice (Philosophy). 7. Philosophy and civilization. 8). Kant, Immanuel, 1724-1804 -- WoÌrterbuch. 9. Kant, Immanuel, 1724-1804 -- Concordances. 10. Kant, Immanuel, 1724-1804 -- 1889-1976 â Indexes. I. Ferrer, Daniel Fidel, 1952-.
MOTTO
As a famous motto calls us back to Kant, Otto Liebmannâs writes
(Kant and His Epigones of 1865):
âAlso muss auf Kant zurĂŒckgegangen werden.â
âTherefore, must return to Kant.â
Table of Contents
1). Preface and Introduction.
2. Background on Kantâs Philosophy (hermeneutical historical situation).
3). Main Index (pages, 25 to 2676).
Preface and Introduction
Total words indexed: 58,928; for the 12 volumes that are in the MAIN INDEX are indexed: pages 1 to 7321. This monograph by Daniel Fidel Ferrer is 2676 pages in total.
The following is a machine index of 12 volumes written by Immanuel Kant and translated from German into English. Everything is indexed including the text, title pages, preface, notes, editorials, glossary, indexes, biographical notes, and even some typos. No stop words or words removed from this index. There are some German words in the text, bibliographies, and in the glossaries (also included in Main Index).
Titles in English of Kantâs writings for this index (pages 1 to 7321).
Anthropology, History, and Education
[Starts on page 1
Correspondence
[Starts on page 313
Critique of Pure Reason
[Starts page 971
Critique of the Power of Judgment
[Starts on page 1771
Lectures on Logic
[Starts on page 2247
Lectures on Metaphysics
[Starts on page 2991
Notes and Fragments
[Starts on page 3670
Opus Postumum
[Starts on page 4374
Practical Philosophy
[Starts on page 4741
Religion and Rational Theology
[Starts on page 5446
Theoretical Philosophy after 1781
[Starts on page 5990
Theoretical Philosophy, 1755-1770
[Starts on page 6541
Universal Natural History and Theory of the Heavens or An Essay on the Constitution and the Mechanical Origin of the Entire Structure of the Universe Based on Newtonian Principles
[Starts on page 7162
The whole single file which includes all of these books ends on page 7321. 12 volumes are pages 1 to 7321. These actual texts of these books by Kant are not include here because of copyright. This is only an index of these 7321 pages by Immanuel Kant. There are some German words in the text and in the glossaries, etc.
Searching this Main Index.
Please note the German words that start with umlauts are at the end of the index because of machine sorting of the words. Starting with the German word âĂeâ on page 2674 page of this book (see in Main Index). Use the FIND FUNCTION for all examples of the words or names you are searching.
Examples from the Main Index
mendacium, 5171, 5329, 5389
mendation, 220
mendax, 2702, 2800
mended, 360
Mendel, 416, 925, 965
Mendelian, 2212
Mendels, 345, 363, 417, 458, 560, 572, 588, 926, 928, 929
MENDELSSOHN, 925
Mendelssohn, 8, 9, 19, 98, 99, 100, 101
Kant in English: An Index
Kant in English: An Index / By Daniel Fidel Ferrer.
©Daniel Fidel Ferrer, 2017. Pages 1 to 2675.
Includes bibliographical references. Index.
1. Ontology. 2. Metaphysics. 3. Philosophy, German. 4. Thought and thinking. 5. Kant, Immanuel, 1724-1804. 6. Practice (Philosophy). 7. Philosophy and civilization. 8). Kant, Immanuel, 1724-1804 -- WoÌrterbuch. 9. Kant, Immanuel, 1724-1804 -- Concordances. 10. Kant, Immanuel, 1724-1804 -- 1889-1976 â Indexes. I. Ferrer, Daniel Fidel, 1952-.
MOTTO
As a famous motto calls us back to Kant, Otto Liebmannâs writes
(Kant and His Epigones of 1865):
âAlso muss auf Kant zurĂŒckgegangen werden.â
âTherefore, must return to Kant.â
Table of Contents
1). Preface and Introduction.
2. Background on Kantâs Philosophy (hermeneutical historical situation).
3). Main Index (pages, 25 to 2676).
Preface and Introduction
Total words indexed: 58,928; for the 12 volumes that are in the MAIN INDEX are indexed: pages 1 to 7321. This monograph by Daniel Fidel Ferrer is 2676 pages in total.
The following is a machine index of 12 volumes written by Immanuel Kant and translated from German into English. Everything is indexed including the text, title pages, preface, notes, editorials, glossary, indexes, biographical notes, and even some typos. No stop words or words removed from this index. There are some German words in the text, bibliographies, and in the glossaries (also included in Main Index).
Titles in English of Kantâs writings for this index (pages 1 to 7321).
Anthropology, History, and Education
[Starts on page 1
Correspondence
[Starts on page 313
Critique of Pure Reason
[Starts page 971
Critique of the Power of Judgment
[Starts on page 1771
Lectures on Logic
[Starts on page 2247
Lectures on Metaphysics
[Starts on page 2991
Notes and Fragments
[Starts on page 3670
Opus Postumum
[Starts on page 4374
Practical Philosophy
[Starts on page 4741
Religion and Rational Theology
[Starts on page 5446
Theoretical Philosophy after 1781
[Starts on page 5990
Theoretical Philosophy, 1755-1770
[Starts on page 6541
Universal Natural History and Theory of the Heavens or An Essay on the Constitution and the Mechanical Origin of the Entire Structure of the Universe Based on Newtonian Principles
[Starts on page 7162
The whole single file which includes all of these books ends on page 7321. 12 volumes are pages 1 to 7321. These actual texts of these books by Kant are not include here because of copyright. This is only an index of these 7321 pages by Immanuel Kant. There are some German words in the text and in the glossaries, etc.
Searching this Main Index.
Please note the German words that start with umlauts are at the end of the index because of machine sorting of the words. Starting with the German word âĂeâ on page 2674 page of this book (see in Main Index). Use the FIND FUNCTION for all examples of the words or names you are searching.
Examples from the Main Index
mendacium, 5171, 5329, 5389
mendation, 220
mendax, 2702, 2800
mended, 360
Mendel, 416, 925, 965
Mendelian, 2212
Mendels, 345, 363, 417, 458, 560, 572, 588, 926, 928, 929
MENDELSSOHN, 925
Mendelssohn, 8, 9, 19, 98, 99, 100, 101