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Zbornik RadovaPublisher: Matematički institut SANU, BeogradISSN: 0351-9406Issue: 22(30)Date: 2025 Editorial BoardImpressum   Preface 5 - 6 Boriša Kuzeljević   An introduction to higher walks 7 - 71 Jeffrey Bergfalk   AbstractKeywords: walks on ordinals; coherent sequences; higher walks; n-coherence; Countryman order; n-hypertournament; sheaf cohomologyMSC: 03E10; 03E05DOI: https://doi.org/10.64191/zr24040410101 The bounding number $\mathfrak b$ and quotients in Banach spaces 73 - 88 Christina Brech   AbstractKeywords: quotients; biorthogonal systems; bounding numberMSC: 03–02 03E05; 46B26; 03E17; 46B20DOI: https://doi.org/10.64191/zr24040410102 Proxy principles in combinatorial set theory 89 - 136 Ari Meir Brodsky, Assaf Rinot and Shira Yadai   AbstractKeywords: square principles; xbox; parameterized proxy principle; ladder system; $C$-sequence; Souslin tree; coherence relationsMSC: 03-02 03E65; 03E05; 03E35DOI: https://doi.org/10.64191/zr24040410103 Ultrafilters and the Katětov order 137 - 176 Jonathan Cancino, Osvaldo Guzmán and Michael Hrušák   AbstractKeywords: ultrafilters; Katětov order; I-ultrafilters; generic existence; Borel idealsMSC: 03E05; 03E17; 03E35DOI: https://doi.org/10.64191/zr24040410104 Why the cone groups can be isomorphic 177 - 191 Samuel M. Corson   AbstractKeywords: Griffiths space; fundamental group; infinite wordMSC: NN-02; 03E75; 20A15; 55Q52; 20F10; 20F34DOI: https://doi.org/10.64191/zr24040410105 Tukey reducibility for categories -- In search of the strongest statement in finite Ramsey theory 193 - 216 Keegan Dasilva Barbosa and Dragan Mašulović   AbstractKeywords: finite Ramsey theory; Tukey reducibility; categoryinebreak theoryMSC: 05C55; 18A99DOI: https://doi.org/10.64191/zr24040410106 Realizing arbitrarily large spectra of $\mathfrak a_{\mathrm T}$ 217 - 259 Vera Fischer and Lukas Schembecker   AbstractKeywords: cardinal characteristics; spectrum; partitions into compact setsMSC: 03E17 03E35DOI: https://doi.org/10.64191/zr24040410107 From descriptive to distributed 261 - 315 Jan Grebík and Zoltán Vidnyánszky   AbstractKeywords: descriptive; Borel combinatorics; LOCAL modelMSC: 03E15; 68W15; 28A05; 05C15DOI: https://doi.org/10.64191/zr24040410108 A survey on big Ramsey structures 317 - 355 Jan Hubička and Andy Zucker   AbstractKeywords: big Ramsey degrees; big Ramsey structuresMSC: 05-02; 05D10; 03E02DOI: https://doi.org/10.64191/zr24040410109 Article page: 12>>

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