Felix Ulmer

According to our database, Felix Ulmer authored at least 32 papers between 1990 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2023

A Gröbner Approach to Dual-Containing Cyclic Left Module (θ, δ)-Codes Rg/Rf ⊂ R/Rf over Finite Commutative Frobenius Rings.

Hedongliang Liu, Cornelia Ott, Felix Ulmer

CoRR, 2023

2020

Editorial: Coding and Cryptography 2019.

Anne Canteaut, Gohar M. Kyureghyan, Alexander Pott, Felix Ulmer

Des. Codes Cryptogr., 2020

2015

Dualilty Preserving Gray Maps: (Pseudo) Self-dual Bases and Symmetric Bases.

Steve Szabo, Felix Ulmer

CoRR, 2015

Extended Abstract: Codes as Modules over Skew Polynomial Rings.

Felix Ulmer

Proceedings of the Codes, Cryptology, and Information Security, 2015

2014

Self-dual skew codes and factorization of skew polynomials.

Delphine Boucher, Felix Ulmer

J. Symb. Comput., 2014

Linear codes using skew polynomials with automorphisms and derivations.

Delphine Boucher, Felix Ulmer

Des. Codes Cryptogr., 2014

2011

A Note on the Dual Codes of Module Skew Codes.

Delphine Boucher, Felix Ulmer

Proceedings of the Cryptography and Coding - 13th IMA International Conference, 2011

2010

Key Exchange and Encryption Schemes Based on Non-commutative Skew Polynomials.

Delphine Boucher, Philippe Gaborit, Willi Geiselmann, Olivier Ruatta, Felix Ulmer

Proceedings of the Post-Quantum Cryptography, Third International Workshop, 2010

2009

Coding with skew polynomial rings.

Delphine Boucher, Felix Ulmer

J. Symb. Comput., 2009

Skew codes of prescribed distance or rank.

Lionel Chaussade, Pierre Loidreau, Felix Ulmer

Des. Codes Cryptogr., 2009

Codes as Modules over Skew Polynomial Rings.

Delphine Boucher, Felix Ulmer

Proceedings of the Cryptography and Coding, 2009

2008

Skew constacyclic codes over Galois rings.

Delphine Boucher, Patrick Solé, Felix Ulmer

Adv. Math. Commun., 2008

2007

Skew-cyclic codes.

Delphine Boucher, Willi Geiselmann, Felix Ulmer

Appl. Algebra Eng. Commun. Comput., 2007

2005

Note on algebraic solutions of differential equations with known finite Galois group.

Felix Ulmer

Appl. Algebra Eng. Commun. Comput., 2005

2003

Liouvillian solutions of third order differential equations.

Felix Ulmer

J. Symb. Comput., 2003

Fourth order linear differential equations with imprimitive group.

Delphine Boucher, Philippe Gaillard, Felix Ulmer

Proceedings of the Symbolic and Algebraic Computation, 2003

2002

Linear Differential Operators for Polynomial Equations.

Olivier Cormier, Michael F. Singer, Barry M. Trager, Felix Ulmer

J. Symb. Comput., 2002

2000

How to solve linear differential equations: An outline.

Felix Ulmer

Program. Comput. Softw., 2000

Computing the Galois group of a polynomial using linear differential equations.

Olivier Cormier, Michael F. Singer, Felix Ulmer

Proceedings of the 2000 International Symposium on Symbolic and Algebraic Computation, 2000

1999

Liouvillian Solutions of Linear Differential Equations of Order Three and Higher.

Mark van Hoeij, Jean-François Ragot, Felix Ulmer, Jacques-Arthur Weil

J. Symb. Comput., 1999

1997

Constructing a Third-Order Linear Differential Equation.

Willi Geiselmann, Felix Ulmer

Theor. Comput. Sci., 1997

1995

Note on Kovacic's algorithm.

Felix Ulmer, Jacques-Arthur Weil

SIGSAM Bull., 1995

Necessary conditions for liouvillian solutions of (third order) linear differential equations.

Michael F. Singer, Felix Ulmer

Appl. Algebra Eng. Commun. Comput., 1995

1994

Irreducible Linear Differential Equations of Prime Order.

Felix Ulmer

J. Symb. Comput., 1994

1993

Liouvillian and Algebraic Solutions of Second and Third Order Linear Differential Equations.

Michael F. Singer, Felix Ulmer

J. Symb. Comput., 1993

Galois Groups of Second and Third Order Linear Differential Equations.

Michael F. Singer, Felix Ulmer

J. Symb. Comput., 1993

On a Third Order Differential Equation whose Differential Galois Group is the Simple Group of 168 Elements.

Michael F. Singer, Felix Ulmer

Proceedings of the Applied Algebra, 1993

1992

Liouvillian Solutions of Third Order Linear Differential Equations: New Bounds and Necessary Conditions.

Michael F. Singer, Felix Ulmer

Proceedings of the 1992 International Symposium on Symbolic and Algebraic Computation, 1992

1991

Entwurf von Algorithmen zur Berechnung Liouvillescher Lösungen von linearen gewöhnlichen Differentialgleichungen.

Felix Ulmer

PhD thesis, 1991

On Liouvillian Solutions of Linear Differential Equations.

Felix Ulmer

Appl. Algebra Eng. Commun. Comput., 1991

On Algebraic Solutions of Linear Differential Equations with Primitive Unimodular Galois Group.

Felix Ulmer

Proceedings of the Applied Algebra, 1991

1990

On Liouvillian Solutions of Homogeneous Linear Differential Equations.

Felix Ulmer, Jacques Calmet

Proceedings of the International Symposium on Symbolic and Algebraic Computation, 1990