Abraham Erika

Prof. Dr. Abraham Erika


Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2013
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Book Chapter
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XCXin Chen
Xin Chen
AEAbraham Erika
Abraham Erika
SSSriram Sankaranarayanan
Sriram Sankaranarayanan

10 March 2010 in Concurrency and Computation: Practice and Experience
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Journal Article
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MGMarkus Geimer
Markus Geimer
FWFelix Wolf
Felix Wolf
BWBrian J. N. Wylie
Brian J. N. Wylie
AEAbraham Erika
Abraham Erika
DBDaniel Becker
Daniel Becker
BMBernd Mohr
Bernd Mohr

1 December 2012
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Conference Paper
Closed access
XCXin Chen
Xin Chen
AEAbraham Erika
Abraham Erika
SSSriram Sankaranarayanan
Sriram Sankaranarayanan
We propose an approach for verifying non-linear hybrid systems using higher-order Taylor models that are a combination of bounded degree polynomials over the initial conditions and time, bloated by an interval. Taylor models are an effective means for computing rigorous bounds on the complex time trajectories of non-linear differential equations. As a result, Taylor models have been successfully used to verify properties of non-linear continuous systems. However, the handling of discrete (controller) transitions remains a challenging problem. In this paper, we provide techniques for handling the effect of discrete transitions on Taylor model flow pipe construction. We explore various solutions based on two ideas: domain contraction and range over-approximation. Instead of explicitly computing the intersection of a Taylor model with a guard set, domain contraction makes the domain of a Taylor model smaller by cutting away parts for which the intersection is empty. It is complemented by range over-approximation that translates Taylor models into commonly used representations such as template polyhedra or zonotopes, on which intersections with guard sets have been previously studied. We provide an implementation of the techniques described in the paper and evaluate the various design choices over a set of challenging benchmarks.

16 July 2015
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Book Chapter
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CDChristian Dehnert
Christian Dehnert
SJSebastian Junges
Sebastian Junges
NJNils Jansen
Nils Jansen
FCFlorian Corzilius
Florian Corzilius
MVMatthias Volk
Matthias Volk
AEAbraham Erika
Abraham Erika

27 October 2015
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Book Chapter
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FCFlorian Corzilius
Florian Corzilius
GKGereon Kremer
Gereon Kremer
SJSebastian Junges
Sebastian Junges
SSStefan Schupp
Stefan Schupp
AEAbraham Erika
Abraham Erika

9 April 2017
Verified
Book Chapter
Closed access
PDF file
SSStefan Schupp
Stefan Schupp
AEAbraham Erika
Abraham Erika
IMIbtissem Ben Makhlouf
Ibtissem Ben Makhlouf
SKStefan Kowalewski
Stefan Kowalewski