WorldCat Identities

Mihăilescu, Preda

Overview
Works: 23 works in 57 publications in 2 languages and 1,248 library holdings
Genres: Conference papers and proceedings 
Roles: Other, Author, Editor, wpr, Author of introduction
Publication Timeline
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Most widely held works about Preda Mihăilescu
 
Most widely held works by Preda Mihăilescu
Contributions in analytic and algebraic number theory : festschrift for S.J. Patterson by Valentin Blomer( Book )

13 editions published between 2011 and 2012 in English and held by 33 WorldCat member libraries worldwide

Annotation
The Capitulation Problem in Class Field Theory by Tobias Bembom( )

1 edition published in 2012 in English and held by 22 WorldCat member libraries worldwide

Cryptanalysis of the Fuzzy Vault for Fingerprints: Vulnerabilities and Countermeasures by Berend-Benjamin Tams( )

2 editions published between 2012 and 2013 in English and held by 22 WorldCat member libraries worldwide

Das Fuzzy Vault ist ein beliebter Ansatz, um die Minutien eines menschlichen Fingerabdrucks in einer Sicherheitsanwendung geschützt zu speichern. In dieser Arbeit werden verschiedene Implementationen des Fuzzy Vault für Fingerabdrücke in verschiedenen Angriffsszenarien untersucht. Unsere Untersuchungen und Analysen bestätigen deutlich, dass die größte Schwäche von Implementationen des Fingerabdruck Fuzzy Vaults seine hohe Anfälligkeit gegen False-Accept Angriffe ist. Als Gegenmaßnahme könnten mehrere Finger oder sogar mehrere biometrische Merkmale eines Menschen gleichzeitig verwendet werde
A unified framework for spline estimators by Katsiaryna Schwarz( )

1 edition published in 2013 in English and held by 22 WorldCat member libraries worldwide

This dissertation develops a uni ed framework to study the (asymptotic) properties of all (periodic) spline based estimators, that is of regression, penalized and smoothing splines. The explicit form of the periodic Demmler-Reinsch basis of general degree in terms of exponential splines allows to derive the exact expression for the equivalent kernel of all spline estimators simultaneously. The corresponding bandwidth, which drives the asymptotic behavior of spline estimators, is shown to be a function of both the number of knots and the smoothing parameter. A strategy for the optimal bandwi
Diophantine Representation in Thin Sequences by Stefan Baur( )

2 editions published in 2016 in English and held by 17 WorldCat member libraries worldwide

In this work we investigate conditions under which forms of arbitrary degree represent almost all elements of thin sequences (especially the set of squares). Stronger results are given for forms of degree 3 and 4
A new approach to the investigation of Iwasawa invariants by Sören Kleine( )

2 editions published in 2014 in English and held by 17 WorldCat member libraries worldwide

Let K be a fixed number field, let p be a prime number, and let Z_p denote the additive group of p-adic integers. The growth of the p-Sylow subgroups of the ideal class groups of the intermediate fields in a Z_p-extension L of K may be explicitly described in terms of the so-called Iwasawa invariants of L/K. In this thesis, we define a certain topology on the set of Z_p-extensions of the number field K, and we prove that Iwasawa's invariants are locally maximal with respect to this topology. Furthermore, we develop necessary and sufficient criteria for the invariants to be globally bounded
Fourier and Variational Based Approaches for Fingerprint Segmentation by Duy Hoang Thai( )

2 editions published in 2015 in English and held by 17 WorldCat member libraries worldwide

Fingerprint recognition plays an important role in many commercial applications and is used by millions of people every day, e.g. for unlocking mobile phones. Fingerprint image segmentation is typically the first processing step of most fingerprint algorithms and it divides an image into foreground, the region of interest (ROI), and background. Two types of error can occur during this step and both have a negative impact on the recognition performance: 'true' foreground can be labelled as background and features like minutiae can be lost, or conversely 'true' background can be misclassified
Statistical Inference for Propagation Processes on Complex Networks by Juliane Manitz( )

1 edition published in 2014 in English and held by 15 WorldCat member libraries worldwide

Fingerprint Growth Prediction, Image Preprocessing and Multi-level Judgment Aggregation by Carsten Gottschlich( )

2 editions published between 2010 and 2011 in English and held by 14 WorldCat member libraries worldwide

Finger growth is studied in the first part of the thesis and a method for growth prediction is presented. The effectiveness of the method is validated in several tests. Fingerprint image preprocessing is discussed in the second part and novel methods for orientation field estimation, ridge frequency estimation and image enhancement are proposed: the line sensor method for orientation estimation provides more robustness to noise than state of the art methods. Curved regions are proposed for improving the ridge frequency estimation and curved Gabor filters for image enhancement. The notion of multi-level judgment aggregation is introduced as a design principle for combining different methods at all levels of fingerprint image processing. Lastly, score revaluation is proposed for incorporating information obtained during preprocessing into the score, and thus amending the quality of the similarity measure at the final stage. A sample application combines all proposed methods of the second part and demonstrates the validity of the approach by achieving massive verification performance improvements in comparison to state of the art software on all available databases of the fingerprint verification competitions (FVC)
Cyclotomy of rings & primality testing by Preda Mihăilescu( Book )

8 editions published in 1997 in English and German and held by 10 WorldCat member libraries worldwide

GOLDBACHS PROBLEM : selected topics by Michael Th Rassias( Book )

2 editions published in 2017 in English and held by 5 WorldCat member libraries worldwide

Important results surrounding the proof of Goldbach's ternary conjecture are presented in this book. Beginning with an historical perspective along with an overview of essential lemmas and theorems, this monograph moves on to a detailed proof of Vinogradov's theorem. The principles of the Hardy-Littlewood circle method are outlined and applied to Goldbach's ternary conjecture. New results due to H. Maier and the author on Vinogradov's theorem are proved under the assumption of the Riemann hypothesis. The final chapter discusses an approach to Goldbach's conjecture through theorems by L. G. Schnirelmann. This book concludes with an Appendix featuring a sketch of H. Helfgott's proof of Goldbach's ternary conjecture. The Appendix also presents some biographical remarks of mathematicians whose research has played a seminal role on the Goldbach ternary problem. The author's step-by-step approach makes this book accessible to those that have mastered classical number theory and fundamental notions of mathematical analysis. This book will be particularly useful to graduate students and mathematicians in analytic number theory, approximation theory as well as to researchers working on Goldbach's problem
Problem-solving and selected topics in number theory : in the spirit of the mathematical olympiads by Michael Th Rassias( Book )

3 editions published in 2011 in English and held by 3 WorldCat member libraries worldwide

This book is designed to introduce some of the most important theorems and results from number theory while testing the reader's understanding through carefully selected Olympiad-caliber problems.--[book cover]
On Artin's primitive root conjecture by Christopher Daniel Ambrose( )

2 editions published in 2014 in English and held by 3 WorldCat member libraries worldwide

Artins Vermutung über Primitivwurzeln besagt, dass es zu jeder ganzen Zahl a, die weder 0, ±1 noch eine Quadratzahl ist, unendlich viele Primzahlen p gibt, sodass a eine Primitivwurzel modulo p ist, d.h. a erzeugt eine multiplikative Untergruppe von Q*, dessen Reduktion modulo p Index 1 in (Z/pZ)* hat. Dies wirft die Frage nach Verteilung von Index und Ordnung dieser Reduktion in (Z/pZ)* auf, wenn man p variiert. Diese Arbeit widmet sich verallgemeinerten Fragestellungen in Zahlkörpern: Ist K ein Zahlkörper und Gamma eine endlich erzeugte unendliche Untergruppe von K*, so werden Momente von
On polynomials in Fq[X] with Abelian lifts and their factorization by Preda Mihăilescu( Book )

2 editions published in 2006 in English and held by 2 WorldCat member libraries worldwide

Quadratic Diophantine equations by Titu Andreescu( Book )

2 editions published in 2015 in English and held by 1 WorldCat member library worldwide

"This monograph treats the classical theory of quadratic Diophantine equations and guides the reader through the last two decades of computational techniques and progress in the area. These new techniques combined with the latest increases in computational power shed new light on important open problems. The authors motivate the study of quadratic Diophantine equations with excellent examples, open problems, and applications. Moreover, the exposition aptly demonstrates many applications of results and techniques from the study of Pell-type equations to other problems in number theory. The book is intended for advanced undergraduate and graduate students as well as researchers. It challenges the reader to apply not only specific techniques and strategies, but also to employ methods and tools from other areas of mathematics, such as algebra and analysis"--
Diophantine Equations and Cyclotomic Fields by Boris Bartolomé( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Class number conditions for the diagonal case of the equaiton of Nagell - Ljunggren( )

1 edition published in 2006 in English and held by 1 WorldCat member library worldwide

On polynomials in F_p[X] with abelian lifts and their factorization( )

1 edition published in 2006 in English and held by 1 WorldCat member library worldwide

Elliptic curve Guass sums and counting points( )

1 edition published in 2006 in English and held by 1 WorldCat member library worldwide

Dual elliptic primes and applications to cyclometric primality proving by Preda Mihăilescu( Book )

1 edition published in 2006 in English and held by 1 WorldCat member library worldwide

 
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Contributions in analytic and algebraic number theory : festschrift for S.J. Patterson
Alternative Names
Preda Mihăilescu matematico rumeno

Preda Mihăilescu Mathematics

Preda Mihăilescu Roemeens wiskundige

Preda Mihăilescu rumænsk matematiker

Preda Mihăilescu rumänischer Mathematiker

Preda Mihăilescu rumänsk matematiker

Preda Mihăilescu rumensk matematikar

Preda Mihăilescu rumensk matematiker

프레다 미허일레스쿠

プレダ・ミハイレスク

普雷達·米哈伊列斯庫

Languages
English (54)

German (2)

Covers
Problem-solving and selected topics in number theory : in the spirit of the mathematical olympiads