Felix Ulmer - researchr alias

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Viewing Publication 1 - 31 from 31

2020

Editorial: Coding and Cryptography 2019Anne Canteaut, Gohar M. M. Kyureghyan, Alexander Pott, Felix Ulmer. dcc, 88(9):1699, 2020. [doi]

2015

Extended Abstract: Codes as Modules over Skew Polynomial RingsFelix Ulmer. c2si 2015: 83-86 [doi]

2014

Self-dual skew codes and factorization of skew polynomialsDelphine Boucher, Felix Ulmer. JSC, 60:47-61, 2014. [doi]

Linear codes using skew polynomials with automorphisms and derivationsDelphine Boucher, Felix Ulmer. dcc, 70(3):405-431, 2014. [doi]

2011

A Note on the Dual Codes of Module Skew CodesDelphine Boucher, Felix Ulmer. ima 2011: 230-243 [doi]

2010

Key Exchange and Encryption Schemes Based on Non-commutative Skew PolynomialsDelphine Boucher, Philippe Gaborit, Willi Geiselmann, Olivier Ruatta, Felix Ulmer. pqcrypto 2010: 126-141 [doi]

2009

Codes as Modules over Skew Polynomial RingsDelphine Boucher, Felix Ulmer. ima 2009: 38-55 [doi]

Coding with skew polynomial ringsDelphine Boucher, Felix Ulmer. JSC, 44(12):1644-1656, 2009. [doi]

Skew codes of prescribed distance or rankLionel Chaussade, Pierre Loidreau, Felix Ulmer. dcc, 50(3):267-284, 2009. [doi]

2008

Skew constacyclic codes over Galois ringsDelphine Boucher, Patrick Solé, Felix Ulmer. amco, 2(3):273-292, 2008. [doi]

2007

Skew-cyclic codesDelphine Boucher, Willi Geiselmann, Felix Ulmer. aaecc, 18(4):379-389, 2007. [doi]

2005

Note on algebraic solutions of differential equations with known finite Galois groupFelix Ulmer. aaecc, 16(4):205-218, 2005. [doi]

2003

Fourth order linear differential equations with imprimitive groupDelphine Boucher, Philippe Gaillard, Felix Ulmer. issac 2003: 45-49 [doi]

Liouvillian solutions of third order differential equationsFelix Ulmer. JSC, 36(6):855-889, 2003. [doi]

2002

Linear Differential Operators for Polynomial EquationsOlivier Cormier, Michael F. Singer, Barry M. Trager, Felix Ulmer. JSC, 34(5):355-398, 2002. [doi]

2000

Computing the Galois group of a polynomial using linear differential equationsOlivier Cormier, Michael F. Singer, Felix Ulmer. issac 2000: 78-85 [doi]

How to solve linear differential equations: An outlineFelix Ulmer. pcs, 26(1):17-22, 2000. [doi]

1999

Liouvillian Solutions of Linear Differential Equations of Order Three and HigherMark van Hoeij, Jean-François Ragot, Felix Ulmer, Jacques-Arthur Weil. JSC, 28(4-5):589-609, 1999.

1997

Constructing a Third-Order Linear Differential EquationWilli Geiselmann, Felix Ulmer. TCS, 187(1-2):3-6, 1997. [doi]

1996

Note on Kovacic s AlgorithmFelix Ulmer, Jacques-Arthur Weil. JSC, 22(2):179-200, 1996.

1995

Necessary Conditions for Liouvillian Solutions of (Third Order) Linear EquationsMichael F. Singer, Felix Ulmer. aaecc, 6:1-22, 1995.

Note on Kovacic's algorithmFelix Ulmer, Jacques-Arthur Weil. cca, 29(2):10-11, 1995. [doi]

1994

Irreducible Linear Differential Equations of Prime OrderFelix Ulmer. JSC, 18(4):385-401, 1994.

1993

Liouvillian and Algebraic Solutions of Second and Third Order Linear Differential EquationsMichael F. Singer, Felix Ulmer. JSC, 16(1):37-73, 1993.

On a Third Order Differential Equation whose Differential Galois Group is the Simple Group of 168 ElementsMichael F. Singer, Felix Ulmer. AAECC 1993: 316-324

Galois Groups of Second and Third Order Linear Differential EquationsMichael F. Singer, Felix Ulmer. JSC, 16(1):9-36, 1993.

1992

Liouvillian Solutions of Third Order Linear Differential Equations: New Bounds and Necessary ConditionsMichael F. Singer, Felix Ulmer. issac 1992: 57-62 [doi]

1991

On Liouvillian Solutions of Linear Differential EquationsFelix Ulmer. aaecc, 2:171-193, 1991.

On Algebraic Solutions of Linear Differential Equations with Primitive Unimodular Galois GroupFelix Ulmer. AAECC 1991: 446-455

Entwurf von Algorithmen zur Berechnung Liouvillescher Lösungen von linearen gewöhnlichen DifferentialgleichungenFelix Ulmer. PhD thesis, Karlsruhe Institute of Technology, Germany, 1991. [doi]

1990

On Liouvillian Solutions of Homogeneous Linear Differential EquationsFelix Ulmer, Jacques Calmet. issac 1990: 236-243 [doi]

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