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A version of Visual Cryptography is presented which is not pixel-based but segment-based. It is used to encrypt messages consisting of symbols which can be represented by a segment display. Forâ€¦ (More)

- Bernd Borchert, Antoni Lozano
- Electronic Colloquium on Computational Complexity
- 1996

This note connects two topics of complexity theory: The topic of succinct circuit representations initiated by Galperin and Wigderson (19831, and the topic of leaf language classes initiated by Bovetâ€¦ (More)

- Bernd Borchert
- Structure in Complexity Theory Conference
- 1994

3 8 8 f ?g ? ? predicate classes promise classes Bernd Borchert UniversitÃ¤t Heidelberg predicate classes promise function promise classes

- Bernd Borchert, Frank Stephan
- Kurt GÃ¶del Colloquium
- 1997

Riceâ€™s Theorem says that every nontrivial semantic property of programs is undecidable. In this spirit we show the following: Every nontrivial absolute (gap, relative) counting property of circuitsâ€¦ (More)

One way of suggesting that an NP problem may not be NP-complete is to show that it is in the promise class UP. We propose an analogous new methodâ€”weaker in strength of evidence but more broadlyâ€¦ (More)

- Bernd Borchert
- 1994

It contributes some results to Structural Complexity Theory which is a subfield of Theoretical Computer Science. First of all I have to thank my advisor Prof. Klaus Ambos-Spies for his continuingâ€¦ (More)

The temporal logic operators atnext and atprevious are alternatives for the operators until and since. P atnext Q has the meaning: at the next position in the future where Q holds it holds P . Weâ€¦ (More)

- Bernd Borchert, Klaus Reinhardt
- LATA
- 2007

The recognizable 2-dimensional languages are a robust class with many characterizations, comparable to the regular languages in the 1-dimensional case. One characterization is by tiling systems. Theâ€¦ (More)

- Craig G Schilling, David E Bank, Bernd Borchert, M D Klatzko, Donald L. Uden
- Annals of emergency medicine
- 1995

STUDY OBJECTIVE
To compare the duration of anesthesia experienced with lidocaine, epinephrine, and tetracaine (LET) solution and that with tetracaine, epinephrine (Adrenalin), and cocaine (TAC)â€¦ (More)

- Max GÃ¼nther, Bernd Borchert
- WISTP
- 2013

Banks want to use their genuine strong credential for online banking transaction authorization the debit card. Customers nowadays are usually equipped with a Smartphone and prefer to not carry a cardâ€¦ (More)