Title: | Full Professor |
Location: | 301 |
Public phone number: | 01 460 5780 |
E-mail: | |
Personal web page: | https://web.math.pmf.unizg.hr/~duje/ |
Department: | Zavod za algebru i teoriju brojeva |
Graduation year: | 1990 |
mr.sc. graduation year: | 1993 |
PhD graduation year: | 1996 |
Employed in this institution since: | 1996 |
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Diophantine m-tuples and Elliptic Curves
Extensions of a Diophantine triple by adjoining smaller elements II
An elliptic curve over Q(u) with torsion Z/4Z and rank 6
High-rank elliptic curves with given torsion group and some applications
On power values of pyramidal numbers, II,
Absolute root separation
Formulas for Diophantine quintuples containing two pairs of conjugates in some quadratic fields
On elliptic curves induced by rational Diophantine quadruples
Stjepan Bohniček (December 15, 1872 - March 14, 1956)
Extensions of a Diophantine triple by adjoining smaller elements
Construction of high rank elliptic curves
Number Theory
Rational Diophantine sextuples containing two regular quadruples and one regular quintuple
Diophantine triples with largest two elements in common
Elliptic curves with torsion groups Z/8Z and Z/2Z × Z/6Z
D(n)-quintuples with square elements
Diophantine m-tuples in finite fields and modular forms
Lie Groups, Number Theory, and Vertex Algebras
Triples, quadruples and quintuples which are D(n)- sets for several n's
Strong rational Diophantine D(q)-triples
Doubly regular Diophantine quadruples
Diophantine quadruples with the properties D(n1) and D(n2)
Rank zero elliptic curves induced by rational Diophantine triples
High rank elliptic curves induced by rational Diophantine triples
D(n)-sets with square elements
Products of factorials which are powers,
Number Theory
Triples and quadruples which are D(n)-sets for several n's
Elliptic curves induced by Diophantine triples
On fundamental units of real quadratic fields of class number 1
A Pellian equation with primes and applications to D(-1)-quadruples
On the largest element in D(n)-quadruples
Rational Diophantine sextuples with square denominators
Triples which are D(n)-sets for several n's
Strong Eulerian triples
On Diophantine m-tuples and D(n)-sets
More on Diophantine sextuples
Absolute real root separation
There are infinitely many rational Diophantine sextuples
Applications of continued fractions in factorization and primality testing
Root separation for reducible monic polynomials of odd degree
On the torsion group of elliptic curves induced by Diophantine triples over quadratic fields
Triples which are D(n)-sets for several n's
Polynomial root separation
Absolute real root separation
Generating Elliptic Curves Using the Complex Multiplication Method
There are infinitely many rational Diophantine sextuples
Cryptanalysis of RSA and Its Variants
On rational Diophantine sextuples
Number theory and cryptography
Rational Diophantine sextuples
Transcendental numbers
Stream Cipher RC4
What is ... a Diophantine m-tuple?
Quadratic Residues and Square Roots in Public Key Cryptography
Finiteness results for F-Diophantine sets
Differential cryptanalysis
Number theory and cryptography
Elliptic curves with torsion group Z/6Z
Diophantine quadruples in finite fields and modular forms
There are infinitely many rational Diophantine sextuples
The rank and generators of Kihara's elliptic curve with torsion Z/4Z over Q(t)
The non-extensibility of D (-2k+ 1)-triples {;;1, k^ 2, k^ 2+ 2k-1};;
High-rank elliptic curves induced by Diophantine triples
Block Cipher Modes of Operation
NTRU Cryptosystem
Number theory and cryptography
Transposition Ciphers ADFGX and ADFGVX
The 2nd Department of Mathematical, Physical and Chemical Sciences
Elliptic curves with torsion group Z/8Z or Z/2Z × Z/6Z
Some Diophantine properties of the sequence of S-units
High rank elliptic curves with torsion Z/2Z × Z/4Z induced by Diophantine triples
Ranks of elliptic curves with prescribed torsion over number fields
High rank elliptic curves with prescribed torsion group over quadratic fields
Diophantine Problems With Sums of Divisors
Mordell-Weil Groups and Isogenies of the Families of Elliptic Curves
Root separation for integer polynomials
Mordell-Weil groups of elliptic curves induced by Diophantine triples
Root separation for integer polynomials
Root separation for integer polynomials
Products of three factorials
On the torsion group of elliptic curves induced by D(4)-triples
Diophantine m-tuples with elements in arithmetic progressions
Root separation for reducible integer polynomials
On quadratic twists of elliptic curves y^2=x(x-1)(x-lambda)
On the high rank π/3 and 2π/3 - congruent number elliptic curves
Elliptic curves coming from Heron tringles
Stream ciphers
Applications of Elliptic Curves in Cryptography
Arithmetic progressions and Pellian equations
Elliptic curves and triangles with three rational medians
Sumsets being squares
Geometric approach to continued fractions
Diffie-Hellman Problem and Discrete Logarithm Problem
Indefinite binary quadratic forms
On the existence of rational Diophantine quintuples with the property D(q)
On the size of sets in a polynomial variant of a problem of Diophantus
On the rank of elliptic curves coming from rational Diophantine triples
Finite field and polynomial congruences
On a conjecture regarding balancing with powers of Fibonacci numbers
On Hall's conjecture
On Hall's conjecture and related polynomial Pell's equation
On a problem of Diophantus for rationals
Polynomial root separation and applications
On power values of pyramidal numbers
On the sum of two divisors of (n^2 + 1)/2
Some Diophantine Problems over the Imaginary Quadratic Fields
LLL Algorithm and Some Applications to Cryptography
Internet Security
On a variation of a congruence of Subbarao
Elliptic curves with large torsion and positive rank over number fields of small degree and ECM factorization
Root separation for reducible monic quartics
Elliptic curves of large rank over quadratic fields
Elliptic curves with large torsion and positive rank over number fields of small degree and ECM factorization
Solving a family of quartic Thue inequalities using continued fractions
Some Diophantine triples and quadruples for quadratic polynomials
On Hall's conjecture
Root separation for irreducible integer polynomials
Mordell-Weil groups of elliptic curves over number fields of small degree
On the size of sets whose elements have perfect power n-shifted products
Root separation for reducible monic quartics
Continued fraction convergents and Newton's approximants for quadratic irrationalities
Ranks of families of elliptic curves and applications to Diophantine problems
Diophantine quadruples in Z[√ -2]
Polynomial Variants of a Problem of Diophantus
Cryptography in the Second World War
Smart Card Security in Banking
Sieve Methods
Elliptic Curves over Finite Fields
Compact Representation of Quadratic Integers and Integer Points on Elliptic Curves
Quadratic Fields and Quadratic Forms
On the rank of elliptic curves over Q(i) with torsion group Z/4Z × Z/4Z
Diophantine m-tuples
Elliptic curves
High rank elliptic curves induced by Diophantine triples and congruent numbers
On the size of sets in a polynomial variant of a problem of Diophantus
Rational Diophantine sextuples with mixed signs
A search for high rank congruent number elliptic curves
Security of Micropayment Systems
Distribution of Prime Numbers
Generating Random Numbers
Technologies for E-Commerce
Smart Cards
Perfect Numbers
Micropayments
Fermat Numbers
Strong Diophantine triples
Elliptic equations
Heights in Diophantine Geometry and Consequences of the abc-conjecture
Digital Cash and Digital Checks
Periodic Continued Fractions
A variant of Wiener's attack on RSA
A problem of Diophantus, Fermat and Euler and its generalizations
Conjectures and results on the size and number of Diophantine tuples
On the number of Diophantine m-tuples
Security of Bank Systems
Cryptography in School
Public Key Infrastructure
Public Key Cryptography
Factorization and ideals
Cryptosystems with Public Key
Solving Congruences
Cryptography in school
Mestre's Polynomial Method for Construction of High-rank Elliptic Curves
Digital Signature Authentication
RSA Cryptosystem
A polynomial variant of a problem of Diophantus for pure powers
On arithmetic progressions on Pellian equations
Polygraphic Substitution Ciphers
Pell Equation and Pythagorean Triples
On Worley's theorem in Diophantine approximations
Strong Diophantine triples
A variant of Wiener's attack on RSA
Applications of Continued Fractions in Diophantine Approximations and Cryptanalysis
Strong Diophantine triples
Convex Sets
A variant of Wiener's attack on RSA with small secret exponent
Mordell-Weil groups of elliptic curves induced by Diophantine triples
Decomposition of a recursive family of polynomials
Principles of Design of Modern Block Cryptosystems
On the family of Diophantine triples {;k-1, k+1, 16k^3-4k};
On differences of two squares in some quadratic fields
Construction of high rank elliptic curves and related Diophantine problems
Effective solution of the D(-1)-quadruple conjecture
Diophantine m-tuples and generalizations
On Mordell-Weil groups of elliptic curves induced by Diophantine triples
On a problem of Diophantus with polynomials
Primitive Roots and Quadratic Residues
ENIGMA
Representation of Primes by Quadratic Forms
Security of Electronic Commerce
Euclidean Algorithm
Distribution of Quadratic Residues
Complex continued fractions
Cryptography
Error-correcting Codes and McEliece Cryptosystem
Digital Watermarking
Diophantine Equations over Function Fields
Systems of Pellian Equations and the Problem of Extension of Some Diophantine Triples
Transposition Ciphers
Markov Chain
PGP - Pretty Good Privacy
Steganography: Hiding Information in Images
Elliptic Curves and Elliptic Functions
Algebraic Numbers
Diophantine m-tuples for linear polynomials. II. Equal degrees
Indecomposability of polynomials and related Diophantine equations
Modern Block Ciphers
High rank elliptic curves with prescribed torsion group
Algorithms for Large-Integer Multiplications
Methods for computing the rank of elliptic curves over Q(T)
On the D(-1)-quadruple conjecture
Roth's Theorem
Digital Signature and Digital Money
Diophantine m-tuples for primes
Arithmetic Functions
On the indecomposabilty of polynomials
Steganography
Complete solution of a problem of Diophantus and Euler
Internet Security and SSL Protocol
Square roots with many good approximants
Diophantine m-tuples
Diophantine m-tuples and connections with eliptic curves
Asymptotic estimates for the number of Diophantine m-tuples
Fibonacci numbers and sets with the property D(4)
Discrete logarithm problem for elliptic curves
Topological Convex Structures
Diophantine quadruples in quadratic fields
Vigenere Cipher
History of Cryptography
A family of quartic Thue inequalities
Mathematical Basis of Public-Key Cryptography
Application of LLL-algorithm in solving Diophantine equations
There are only finitely many Diophantine quintuples
Newton's approximants and continued fractions
Shannon's Theory
Complete solution of the polynomial version of a problem of Diophantus
Continued fractions and RSA with small secret exponent
On a problem of Diophantus and Euler
RC6 Cryptosystem
Monoalphabetic Substitution Ciphers
Bounds for the size of sets with the property D(n)
Mordell-Weil theorem
Continued Fractions and Their Applications
Fermat's Little Theorem and Its Consequences
Construction of elliptic curves over Q with large rank
Continued fractions and RSA with small secret exponent
Mersenne Numbers and Perfect Numbers
Primality Testing
A polynomial variant of a problem of Diophantus and Euler
Knapsack Problem and Applications in Cryptography
On a problem of Diophantus for higher powers
On Diophantine quintuple conjecture
Kneser's Theorem
Congruent numbers and elliptic curves
Modular functions and complex multiplication of elliptic curves
Mordell's theorem
DES Cryptosystem
Zero-knowledge Proofs
Congruences of Integers and Polynomials
Statistical Properties of Arithmetic Functions
An example of elliptic curve over Q with rank equal to 15
A parametric family of quartic Thue equations
On the size of Diophantine m-tuples
Hash Functions in Cryptography
Discrete Logarithm Problem
An interesting property of a recurrence related to the Fibonacci sequence
Polyalphabetic Ciphers
Construction of high-rank elliptic curves with non-trivial torsion group
Primality Tests
Fibonacci Numbers and the Golden Section
Diffie-Hellman Key Distribution Protocol
Diophantine m-tuples for linear polynomials
An extension of an old problem of Diophantus and Euler. II
Newton's formula and continued fraction expansion of sqrt(d)
Twoparametric family of quartic Thue equations
Diophantine m-tuples and elliptic curves
An absolute bound for the size of Diophantine m-tuples
Pierre de Fermat (1601.-1665.)
Diophantine equations for second order recursive sequences of polynomials
Diophantine triples and construction of high-rank elliptic curves over Q with three non-trivial 2-torsion points
A parametric family of elliptic curves
Integer points on a family of elliptic curves
Irregular Diophantine m-tuples and elliptic curves of high rank
A note on Diophantine quintuples
The Fibonacci numbers
A proof of the Hoggatt-Bergum conjecture
A bijective proof of Riordan's theorem on powers of Fibonacci numbers
An extension of an old problem of Diophantus and Euler
A generalization of a theorem of Baker and Davenport
Some estimates of the number of Diophantine quadruples
On the exceptional set in the problem of Diophantus and Davenport
Complete solution of a family of simultaneous Pellian equations
A problem of Diophantus and Pell numbers
Diophantine quadruples and quintuples modulo 4
A problem of Diophantus and Dickson's conjecture
The problem of Diophantus and Davenport for Gaussian integers
The problem of Diophantus and Davenport
On Diophantine quintuples
The problem of the extension of a parametric family of Diophantine triples
Complete solutions of certain families of simultaneous Pellian equations
Generalized Fibonacci numbers and the problem of Diophantus
Mathematical competitions of high-school students
Some polynomial formulas for Diophantine quadruples
Diophantine quadruples for squares of Fibonacci and Lucas numbers
Generalization of a problem of Diophantus
A. Dujella: Diophantine m-tuples and Elliptic Curves, Springer, Cham, 2024.
A. Dujella: Number Theory, Školska knjiga, Zagreb, 2021.
A. Dujella, M. Kazalicki, M. Mikić and M. Szikszai, There are infinitely many rational Diophantine sextuples, Int. Math. Res. Not. IMRN 2017 (2) (2017), 490-508.
A. Dujella, There are only finitely many Diophantine quintuples, J. Reine Angew. Math. 566 (2004), 183-214.
A. Dujella and A. Petho, A generalization of a theorem of Baker and Davenport, Quart. J. Math. Oxford Ser. (2), 49 (1998), 291-306.
Croatian Mathematical Society
American Mathematical Society
The Fibonacci Association
International Association for Cryptologic Research
Diophantine m-tuples, elliptic curves, Thue and index form equations (supported by the Croatian Science Foundation), 2014-2018
Diophantine Equations and Elliptic Curves (supported by the Croatian Ministry of Science, Education and Sport), 2007-2013
1990-1993 Teaching Fellow, Department of Mathematics, University of Zagreb, Croatia
1993-1997 Teaching Assistant, Department of Mathematics, University of Zagreb, Croatia
1997-2000 Assistant Professor, Department of Mathematics, University of Zagreb, Croatia
2000-2004 Associate Professor, Department of Mathematics, University of Zagreb, Croatia
2004- Professor, Department of Mathematics, University of Zagreb, Croatia
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