@book{Zhuchok2018,
  author    = {Zhuchok, Anatolii V.},
  title     = {Relatively free doppelsemigroups},
  number    = {5},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-427-2},
  issn      = {2199-4951},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-407719},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {vii, 78},
  year      = {2018},
  abstract  = {A doppelalgebra is an algebra defined on a vector space with two binary linear associative operations. Doppelalgebras play a prominent role in algebraic K-theory. We consider doppelsemigroups, that is, sets with two binary associative operations satisfying the axioms of a doppelalgebra. Doppelsemigroups are a generalization of semigroups and they have relationships with such algebraic structures as interassociative semigroups, restrictive bisemigroups, dimonoids, and trioids. In the lecture notes numerous examples of doppelsemigroups and of strong doppelsemigroups are given. The independence of axioms of a strong doppelsemigroup is established. A free product in the variety of doppelsemigroups is presented. We also construct a free (strong) doppelsemigroup, a free commutative (strong) doppelsemigroup, a free n-nilpotent (strong) doppelsemigroup, a free n-dinilpotent (strong) doppelsemigroup, and a free left n-dinilpotent doppelsemigroup. Moreover, the least commutative congruence, the least n-nilpotent congruence, the least n-dinilpotent congruence on a free (strong) doppelsemigroup and the least left n-dinilpotent congruence on a free doppelsemigroup are characterized. The book addresses graduate students, post-graduate students, researchers in algebra and interested readers.},
  language  = {en}
}
@book{OPUS4-28852,
  title     = {General algebra and applications},
  series = {Research and exposition in mathematics},
  volume    = {20},
  journal   = {Research and exposition in mathematics},
  editor    = {Denecke, Klaus-Dieter},
  publisher = {Heldermann},
  address   = {Berlin},
  isbn      = {3-88538-220-2},
  pages     = {237 S. : Ill.},
  year      = {1993},
  language  = {en}
}
@book{OPUS4-23744,
  title     = {General algebra and applications in discrete mathematics : proceedings of "Conference on General Algebra and Discrete Mathematics"},
  series = {Berichte aus der Mathematik},
  journal   = {Berichte aus der Mathematik},
  editor    = {Denecke, Klaus-Dieter},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {3-8265-2431-4},
  pages     = {217 S. : graph. Darst.},
  year      = {1997},
  language  = {en}
}
@book{OPUS4-19362,
  title     = {General algebra and applications : proceedings of the 59th Workshop on General Algebra ; 15th Conference for Young Algebraists, Potsdam 2000},
  series = {Berichte aus der Mathematik},
  journal   = {Berichte aus der Mathematik},
  editor    = {Denecke, Klaus-Dieter and Vogel, Hans-J{\"u}rgen},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {3-8265-7983-6},
  pages     = {VI, 202 S. : graph. Darst.},
  year      = {2000},
  language  = {en}
}
@book{OPUS4-12576,
  title     = {Approaches to singular analysis : a volume of advances in partial differential equations},
  series = {Operator theory : advances and applications},
  volume    = {125},
  journal   = {Operator theory : advances and applications},
  editor    = {Gil, Juan and Grieser, Daniel and Lesch, Matthias},
  publisher = {Birkh{\"a}user Basel},
  address   = {Basel},
  isbn      = {3-7643-6518-8},
  doi       = {10.1007/978-3-0348-8253-8},
  pages     = {256 S.},
  year      = {2001},
  language  = {en}
}
@book{OPUS4-14127,
  title     = {Aspects of Boundary Problems in Analysis and Geometry : advances in partial differential equations},
  series = {Operator Theory : Advances and Applications},
  volume    = {151},
  journal   = {Operator Theory : Advances and Applications},
  editor    = {Gil, Juan and Krainer, Thomas and Witt, Ingo},
  publisher = {Birkh{\"a}user},
  address   = {Basel},
  isbn      = {3-7643-7069-6},
  pages     = {XII, 560 S.},
  year      = {2004},
  language  = {en}
}
@book{OPUS4-33496,
  title     = {Surveys in stochastic processes},
  editor    = {Blath, Jochen and Imkeller, Peter and Roelly, Sylvie},
  publisher = {European Mathematical Society},
  address   = {Z{\"u}rich},
  isbn      = {978-3-03719-072-2},
  pages     = {XIII, 248 S.},
  year      = {2011},
  language  = {en}
}
@book{OPUS4-26873,
  title     = {General Relativity and Gravitation},
  editor    = {Schmidt, Hans-J{\"u}rgen},
  publisher = {Kluwer},
  address   = {Dordrecht},
  issn      = {0001-7701},
  year      = {1995},
  abstract  = {General Relativity and Gravitation is a journal of studies in general relativity and related topics, published under the auspices of the International Committee on General Relativity and Gravitation. The journal publishes original, high-quality research papers on the theoretical and experimental aspects of general relativity and related topics; surveys and review articles on current research in general relativity and gravitation; news regarding conferences and other enterprises of interest to scientists in this field; and book reviews. All manuscripts and editorial correspondence, as well as books for review, should be submitted to the Editor, and authors may propose who among the Associate Editors will deal with their paper. All submitted articles are acknowledged and refereed.},
  language  = {en}
}
@book{OPUS4-28616,
  title     = {Statistics : a journal of theoretical and applied statistics},
  editor    = {L{\"a}uter, Henning},
  publisher = {Gordon \& Breach Science Publ.},
  address   = {Reading Berkshire [u.a.]},
  issn      = {0233-1888},
  year      = {1994},
  language  = {en}
}
@book{OPUS4-20831,
  title     = {Evolution equations, Feshbach resonances, singular Hodge theory},
  series = {Mathematical topics},
  volume    = {16},
  journal   = {Mathematical topics},
  editor    = {Demuth, Michael and Schrohe, Elmar and Schulze, Bert-Wolfgang and Sj{\"o}strand, J.},
  publisher = {Wiley-VCH},
  address   = {Berlin},
  isbn      = {3-527-40233-0},
  pages     = {431 S.},
  year      = {1999},
  language  = {en}
}
@book{OPUS4-23966,
  title     = {Spectral theory, microlocal analysis, singular manifolds},
  series = {Mathematical topics},
  volume    = {14},
  journal   = {Mathematical topics},
  editor    = {Demuth, Michael and Schrohe, Elmar and Schulze, Bert-Wolfgang and Sj{\"o}strand, J.},
  publisher = {Akad.-Verl.},
  address   = {Berlin},
  isbn      = {3-05-501776-5},
  pages     = {366 S.},
  year      = {1997},
  language  = {en}
}
@book{OPUS4-27563,
  title     = {Boundary value problems, Schr{\"o}dinger operators, deformation quantization},
  series = {Mathematical topics},
  volume    = {8},
  journal   = {Mathematical topics},
  editor    = {Demuth, Michael and Schrohe, Elmar and Schulze, Bert-Wolfgang},
  publisher = {Akad.-Verl.},
  address   = {Berlin},
  isbn      = {3-05-501699-8},
  pages     = {353 S.},
  year      = {1995},
  language  = {en}
}
@book{OPUS4-43561,
  title     = {Implementation research on problem solving in school settings},
  series = {Ars inveniendi et dejudicandi ; 13},
  journal   = {Ars inveniendi et dejudicandi ; 13},
  editor    = {Kuzle, Ana and Rott, Benjamin and Gebel, Inga},
  publisher = {WTM-Verlag},
  address   = {M{\"u}nster},
  isbn      = {978-3-95987-116-7},
  pages     = {IV, 220},
  year      = {2019},
  language  = {en}
}