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- Rudolf Ahlswede, Ning Cai, Shuo-Yen Robert Li, Raymond W. Yeung
- IEEE Trans. Information Theory
- 2000

We introduce a new class of problems called network information flow which is inspired by computer network applications. Consider a point-to-point communication network on which a number of information sources are to be mulitcast to certain sets of destinations. We assume that the information sources are mutually independent. The problem is to characterize… (More)

- Rudolf Ahlswede, Imre Csiszár
- IEEE Trans. Information Theory
- 1993

- Rudolf Ahlswede, János Körner
- IEEE Trans. Information Theory
- 1975

- Rudolf Ahlswede
- 1978

The author determines for arbitrarily varying channels a) the average error capacity and b) the maximal error capacity in case of randomized encoding. A formula for the average error capacity in case of randomized encoding was announced several years ago by Dobrushin ([3]). Under a mild regularity condition this formula turns out to be valid and follows as… (More)

- Rudolf Ahlswede, Andreas J. Winter
- IEEE Trans. Information Theory
- 2002

In this paper we present a simple proof of the strong converse for identification via discrete memoryless quantum channels, based on a novel covering lemma. The new method is a generalization to quantum communication channels of Ahlswede’s recently discovered appoach to classical channels. It involves a development of explicit large deviation estimates to… (More)

- Rudolf Ahlswede, Levon H. Khachatrian
- Eur. J. Comb.
- 1997

We are concerned here with one of the oldest problems in combinatorial extremal theory. It is readily described after we have made a few conventions. ގ denotes the set of

- Rudolf Ahlswede, Imre Csiszár
- IEEE Trans. Information Theory
- 1986

- Rudolf Ahlswede, Gunter Dueck
- IEEE Trans. Information Theory
- 1989

- Rudolf Ahlswede, Te Sun Han
- IEEE Trans. Information Theory
- 1983

- Rudolf Ahlswede
- IEEE Trans. Information Theory
- 1985

During recent years there has been strong interest in a certain source coding problem, which some authors call the \problem of multiple descriptions". Old and new wringing techniques enable us to establish a single{letter characterization of the rate{distrotion region in the case of no excess rate for the joint description. 1 The Result Since the origin of… (More)