Hans-E. Porst

Abschiedsvorlesung (2. Dezember 2008)

• Über das kategorielle Denken

Aktuelle Veröffentlichungen

• Hopf Monoids in Jonsson-Tarski Varieties, Preprint (2016)

• Hopf Monoids in Varieties, Preprint (2016)

• Generalizations of the Sweedler Dual (with R. Street); Appl. Categ. Structures, 24 (2016), 619-647        

• The Dual rings of a R-coring revisited (with L. Poinsot); Comm. Algebra, 44 (2016), 944-964

• The formal theory of Hopf algebras, Part I,  Quaestiones Math, 38 (2015), 631-682


• The formal theory of Hopf algebras, Part II, Quaestiones Math, 38 (2015), 683-708

• Free Monoids over Semigroups in a Monoidal Category: Construction and Applications (with L. Poinsot); Comm. Algebra, 43 (2015), 4873-4899 

• Takeuchi' Free Hopf Algebra Constructions Revisited,  J. Pure Appl. Algebra, 216 (2012), 1768-1774, DOI 10.1016/j.jpaa.2012.02.016

• Free internal groups,  Appl. Categ. Structures, 20 (2012), 31-42, DOI 10.1007/210485-010-9222

• On subcategories of the category of Hopf algebras,  Arabian Journal of Science and Enginering, 36 (2011), 1023-1029, DOI 10.1007/s13369-011-0090-4

• Algebraic lattices and locally finitely presentable categories,  Algebra Universalis, 68 (2011), 285-298, DOI 10.1007/s00012-11-0129

• Limits and colimits of Hopf algebras,  J. Algebra, 328 (2011), 254-267

• Dual Adjunctions Between Algebras and Coalgebras, Arabian Journal for Science and Engineering,  33 - 2C (2008), 407-411 

• Universal Constructions for Hopf Algebras,  J. Pure Appl. Algebra, 212 (2008), 2547-2554

• On Categories of  Monoids, Comonoids, and Bimonoids, Quaestiones Math., 31 (2008), 127-139

• Fundamental Constructions for Coalgebras, Corings, and Comodules,  Appl. Categ. Structures, 16 (2008), 223-238

• On Corings and Comodules, Arch. Math. (Brno) 42 (2006), 419-425

• On Coalgebras which are Algebras (with Chr. Dzierzon); Categorical Structures and their Applications, (eds. W. Gähler and G. Preuss), Singapore 2004, 227-235

• Residually Small Varieties without Rank; Appl. Categ. Structures ,12 (2004) 355-360

• On Tree Coalgebras and Coalgebra Presentations (with J. Adámek); Theoret. Comput. Sci., 311 (2004), 257-283

• On Varieties and Covarieties in a Category (with J. Adámek); Math. Structures Comput. Sci., 13 (2003) 201-232

• From Varieties of Algebras to Covarieties of Coalgebras (with J. Adámek); Electronic Notes in Theoretical Computer Science 44 (2001)

• Generalized Morita Theories;  Notices South African Math. Soc., 32 (2001) 4-16

• Varieties Without Minimal Generators (with J. Rosicky); Algebra Universalis, 45 (2001) 23-33

• Hu's Primal Algebra Theorem Revisited; Comment.Math.Univ.Carolinae, 41 (2000) 855-859

• Equivalence of Varieties in General and of Bool in Particular; Algebra Universalis, 43 (2000) 157-186

• The Essentially Equational Theory of Horn Classes; Mathematical Logic Qarterly ,46 (2000) 233-240

• Minimal Generators in Varieties. Appl. Categ. Structures, 8 (2000) 519-52

• Algebraic Theories of Quasivarieties (with J. Adámek); J. Algebra ,208 (1998) 379-398

• CatMAT 2000 - Proceedings of the Conference CatMAT2000 21. - 25. August 2000 in Bremen
  Editors: Horst Herrlich and Hans-E. Porst, Mathematik-Arbeitspapiere 54, 472 p, Univ. Bremen 2000

• Categorical Methods in Algebra and Topology - A collection of papers in honour of Horst Herrlich
  Editor: Hans-E. Porst, Mathematik-Arbeitspapiere 48, 488 p, Univ. Bremen 1997