Felix Ulmer

34 papers B 4C 3Journal 23Unranked 3
YearRankTypeTitle / Venue / Authors
2025 J jnl
A Gröbner approach to dual-containing cyclic left module $ (\theta,\delta) $-codes over finite commutative Frobenius rings.
Adv. Math. Commun.
Hedongliang Liu, Cornelia Ott, Felix Ulmer
2023 J jnl
A Gröbner Approach to Dual-Containing Cyclic Left Module (θ, δ)-Codes Rg/Rf ⊂ R/Rf over Finite Commutative Frobenius Rings.
CoRR
Hedongliang Liu, Cornelia Ott, Felix Ulmer
2020 J jnl
Editorial: Coding and Cryptography 2019.
Des. Codes Cryptogr.
Anne Canteaut, Gohar M. Kyureghyan, Alexander Pott, Felix Ulmer
2015 J jnl
Dualilty Preserving Gray Maps: (Pseudo) Self-dual Bases and Symmetric Bases.
CoRR
Steve Szabo, Felix Ulmer
2015 — conf
Extended Abstract: Codes as Modules over Skew Polynomial Rings.
C2SI
Felix Ulmer
2014 J jnl
Linear codes using skew polynomials with automorphisms and derivations.
Des. Codes Cryptogr.
Delphine Boucher, Felix Ulmer
2014 J jnl
Self-dual skew codes and factorization of skew polynomials.
J. Symb. Comput.
Delphine Boucher, Felix Ulmer
2011 C conf
A Note on the Dual Codes of Module Skew Codes.
IMACC
Delphine Boucher, Felix Ulmer
2010 C conf
Key Exchange and Encryption Schemes Based on Non-commutative Skew Polynomials.
PQCrypto
Delphine Boucher, Philippe Gaborit, Willi Geiselmann, Olivier Ruatta, Felix Ulmer
2009 C conf
Codes as Modules over Skew Polynomial Rings.
IMACC
Delphine Boucher, Felix Ulmer
2009 J jnl
Coding with skew polynomial rings.
J. Symb. Comput.
Delphine Boucher, Felix Ulmer
2009 J jnl
Skew codes of prescribed distance or rank.
Des. Codes Cryptogr.
Lionel Chaussade, Pierre Loidreau, Felix Ulmer
2008 J jnl
Skew constacyclic codes over Galois rings.
Adv. Math. Commun.
Delphine Boucher, Patrick Solé, Felix Ulmer
2007 J jnl
Skew-cyclic codes.
Appl. Algebra Eng. Commun. Comput.
Delphine Boucher, Willi Geiselmann, Felix Ulmer
2005 J jnl
Note on algebraic solutions of differential equations with known finite Galois group.
Appl. Algebra Eng. Commun. Comput.
Felix Ulmer
2003 B conf
Fourth order linear differential equations with imprimitive group.
ISSAC
Delphine Boucher, Philippe Gaillard, Felix Ulmer
2003 J jnl
Liouvillian solutions of third order differential equations.
J. Symb. Comput.
Felix Ulmer
2002 J jnl
Linear Differential Operators for Polynomial Equations.
J. Symb. Comput.
Olivier Cormier, Michael F. Singer, Barry M. Trager, Felix Ulmer
2000 B conf
Computing the Galois group of a polynomial using linear differential equations.
ISSAC
Olivier Cormier, Michael F. Singer, Felix Ulmer
2000 J jnl
How to solve linear differential equations: An outline.
Program. Comput. Softw.
Felix Ulmer
1999 J jnl
Liouvillian Solutions of Linear Differential Equations of Order Three and Higher.
J. Symb. Comput.
Mark van Hoeij, Jean-François Ragot, Felix Ulmer, Jacques-Arthur Weil
1997 J jnl
Constructing a Third-Order Linear Differential Equation.
Theor. Comput. Sci.
Willi Geiselmann, Felix Ulmer
1996 J jnl
Note on Kovacic's Algorithm.
J. Symb. Comput.
Felix Ulmer, Jacques-Arthur Weil
1995 J jnl
Necessary conditions for liouvillian solutions of (third order) linear differential equations.
Appl. Algebra Eng. Commun. Comput.
Michael F. Singer, Felix Ulmer
1995 J jnl
Note on Kovacic's algorithm.
SIGSAM Bull.
Felix Ulmer, Jacques-Arthur Weil
1994 J jnl
Irreducible Linear Differential Equations of Prime Order.
J. Symb. Comput.
Felix Ulmer
1993 J jnl
Galois Groups of Second and Third Order Linear Differential Equations.
J. Symb. Comput.
Michael F. Singer, Felix Ulmer
1993 J jnl
Liouvillian and Algebraic Solutions of Second and Third Order Linear Differential Equations.
J. Symb. Comput.
Michael F. Singer, Felix Ulmer
1993 — conf
On a Third Order Differential Equation whose Differential Galois Group is the Simple Group of 168 Elements.
AAECC
Michael F. Singer, Felix Ulmer
1992 B conf
Liouvillian Solutions of Third Order Linear Differential Equations: New Bounds and Necessary Conditions.
ISSAC
Michael F. Singer, Felix Ulmer
1991 — —
Entwurf von Algorithmen zur Berechnung Liouvillescher Lösungen von linearen gewöhnlichen Differentialgleichungen.
Felix Ulmer
1991 — conf
On Algebraic Solutions of Linear Differential Equations with Primitive Unimodular Galois Group.
AAECC
Felix Ulmer
1991 J jnl
On Liouvillian Solutions of Linear Differential Equations.
Appl. Algebra Eng. Commun. Comput.
Felix Ulmer
1990 B conf
On Liouvillian Solutions of Homogeneous Linear Differential Equations.
ISSAC
Felix Ulmer, Jacques Calmet