28 found
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  1.  43
    On ◁∗-maximality.Mirna Džamonja & Saharon Shelah - 2004 - Annals of Pure and Applied Logic 125 (1-3):119-158.
    This paper investigates a connection between the semantic notion provided by the ordering * among theories in model theory and the syntactic SOPn hierarchy of Shelah. It introduces two properties which are natural extensions of this hierarchy, called SOP2 and SOP1. It is shown here that SOP3 implies SOP2 implies SOP1. In Shelah's article 229) it was shown that SOP3 implies *-maximality and we prove here that *-maximality in a model of GCH implies a property called SOP2″. It has been (...)
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  2. Universal graphs at the successor of a singular cardinal.Mirna Džamonja & Saharon Shelah - 2003 - Journal of Symbolic Logic 68 (2):366-388.
    The paper is concerned with the existence of a universal graph at the successor of a strong limit singular μ of cofinality ℵ0. Starting from the assumption of the existence of a supercompact cardinal, a model is built in which for some such μ there are $\mu^{++}$ graphs on μ+ that taken jointly are universal for the graphs on μ+, while $2^{\mu^+} \gg \mu^{++}$ . The paper also addresses the general problem of obtaining a framework for consistency results at the (...)
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  3.  86
    Diamond (on the regulars) can fail at any strongly unfoldable cardinal.Mirna Džamonja & Joel David Hamkins - 2006 - Annals of Pure and Applied Logic 144 (1-3):83-95.
    If κ is any strongly unfoldable cardinal, then this is preserved in a forcing extension in which κ fails. This result continues the progression of the corresponding results for weakly compact cardinals, due to Woodin, and for indescribable cardinals, due to Hauser.
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  4.  65
    Forcing with finite conditions.Gregor Dolinar & Mirna Džamonja - 2013 - Annals of Pure and Applied Logic 164 (1):49-64.
    We give a construction of the square principle by means of forcing with finite conditions.
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  5.  36
    On the existence of universal models.Mirna Džamonja & Saharon Shelah - 2004 - Archive for Mathematical Logic 43 (7):901-936.
    Suppose that λ=λ <λ ≥ℵ0, and we are considering a theory T. We give a criterion on T which is sufficient for the consistent existence of λ++ universal models of T of size λ+ for models of T of size ≤λ+, and is meaningful when 2λ +>λ++. In fact, we work more generally with abstract elementary classes. The criterion for the consistent existence of universals applies to various well known theories, such as triangle-free graphs and simple theories. Having in mind (...)
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  6.  21
    Saturated filters at successors of singulars, weak reflection and yet another weak club principle.Mirna Džamonja & Saharon Shelah - 1996 - Annals of Pure and Applied Logic 79 (3):289-316.
    Suppose that λ is the successor of a singular cardinal μ whose cofinality is an uncountable cardinal κ. We give a sufficient condition that the club filter of λ concentrating on the points of cofinality κ is not λ+-saturated.1 The condition is phrased in terms of a notion that we call weak reflection. We discuss various properties of weak reflection. We introduce a weak version of the ♣-principle, which we call ♣*−, and show that if it holds on a stationary (...)
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  7.  24
    Big Ramsey degrees in ultraproducts of finite structures.Dana Bartošová, Mirna Džamonja, Rehana Patel & Lynn Scow - 2024 - Annals of Pure and Applied Logic 175 (7):103439.
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  8.  46
    Matthew Handelman.* The Mathematical Imagination: On the Origins and Promise of Critical Theory.Mirna Džamonja - 2023 - Philosophia Mathematica 31 (2):283-285.
    This book, published in 2019 as an open-access edition of the Fordham University Press, attracts by its title. Imagination, as we mathematicians know only too w.
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  9.  66
    Similar but not the same: Various versions of ♣ do not coincide.Mirna Džamonja & Saharon Shelah - 1999 - Journal of Symbolic Logic 64 (1):180 - 198.
    We consider various versions of the ♣ principle. This principle is a known consequence of $\lozenge$ . It is well known that $\lozenge$ is not sensitive to minor changes in its definition, e.g., changing the guessing requirement form "guessing exactly" to "guessing modulo a finite set". We show however, that this is not true for ♣. We consider some other variants of ♣ as well.
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  10.  17
    Small universal families of graphs on ℵω+ 1.James Cummings, Mirna Džamonja & Charles Morgan - 2016 - Journal of Symbolic Logic 81 (2):541-569.
  11.  54
    On properties of theories which preclude the existence of universal models.Mirna Džamonja & Saharon Shelah - 2006 - Annals of Pure and Applied Logic 139 (1):280-302.
    We introduce the oak property of first order theories, which is a syntactical condition that we show to be sufficient for a theory not to have universal models in cardinality λ when certain cardinal arithmetic assumptions about λ implying the failure of GCH hold. We give two examples of theories that have the oak property and show that none of these examples satisfy SOP4, not even SOP3. This is related to the question of the connection of the property SOP4 to (...)
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  12.  18
    On middle box products and paracompact cardinals.David Buhagiar & Mirna Džamonja - 2024 - Annals of Pure and Applied Logic 175 (1):103332.
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  13. Wild edge colourings of graphs.Mirna Džamonja, Péter Komjáth & Charles Morgan - 2004 - Journal of Symbolic Logic 69 (1):255 - 264.
    We prove consistent, assuming there is a supercompact cardinal, that there is a singular strong limit cardinal $\mu$ , of cofinality $\omega$ , such that every $\mu^{+}$ -chromatic graph X on $\mu^{+}$ has an edge colouring c of X into $\mu$ colours for which every vertex colouring g of X into at most $\mu$ many colours has a g-colour class on which c takes every value. The paper also contains some generalisations of the above statement in which $\mu^{+}$ is replaced (...)
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  14.  34
    Forcing Axioms, Finite Conditions and Some More.Mirna Džamonja - 2013 - In Kamal Lodaya (ed.), Logic and Its Applications. Springer. pp. 17--26.
  15.  42
    Chain models, trees of singular cardinality and dynamic ef-games.Mirna Džamonja & Jouko Väänänen - 2011 - Journal of Mathematical Logic 11 (1):61-85.
    Let κ be a singular cardinal. Karp's notion of a chain model of size κ is defined to be an ordinary model of size κ along with a decomposition of it into an increasing union of length cf. With a notion of satisfaction and -isomorphism such models give an infinitary logic largely mimicking first order logic. In this paper we associate to this logic a notion of a dynamic EF-game which gauges when two chain models are chain-isomorphic. To this game (...)
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  16.  28
    Finitely Additive Measures on Topological Spaces and Boolean Algebras, University of East Anglia, UK, 2015. Supervised by Mirna Džamonja.Zanyar A. Ameen & Mirna Džamonja - 2018 - Bulletin of Symbolic Logic 24 (2):199-200.
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  17.  42
    Some remarks on a question of D. H. Fremlin regarding ε-density.Arthur W. Apter & Mirna Džamonja - 2001 - Archive for Mathematical Logic 40 (7):531-540.
    We show the relative consistency of ℵ1 satisfying a combinatorial property considered by David Fremlin (in the question DU from his list) in certain choiceless inner models. This is demonstrated by first proving the property is true for Ramsey cardinals. In contrast, we show that in ZFC, no cardinal of uncountable cofinality can satisfy a similar, stronger property. The questions considered by D. H. Fremlin are if families of finite subsets of ω1 satisfying a certain density condition necessarily contain all (...)
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  18.  36
    1995–1996 annual meeting of the association for symbolic logic.Tomek Bartoszynski, Harvey Friedman, Geoffrey Hellman, Bakhadyr Khoussainov, Phokion G. Kolaitis, Richard Shore, Charles Steinhorn, Mirna Dzamonja, Itay Neeman & Slawomir Solecki - 1996 - Bulletin of Symbolic Logic 2 (4):448-472.
  19.  39
    On wide Aronszajn trees in the presence of ma.Mirna Džamonja & Saharon Shelah - 2021 - Journal of Symbolic Logic 86 (1):210-223.
    A wide Aronszajn tree is a tree of size and height $\omega _{1}$ with no uncountable branches. We prove that under $MA$ there is no wide Aronszajn tree which is universal under weak embeddings. This solves an open question of Mekler and Väänänen from 1994. We also prove that under $MA$, every wide Aronszajn tree weakly embeds in an Aronszajn tree, which combined with a result of Todorčević from 2007, gives that under $MA$ every wide Aronszajn tree embeds into a (...)
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  20.  29
    Strictly positive measures on Boolean algebras.Mirna Džamonja & Grzegorz Plebanek - 2008 - Journal of Symbolic Logic 73 (4):1416-1432.
    We investigate strictly positive finitely additive measures on Boolean algebras and strictly positive Radon measures on compact zerodimensional spaces. The motivation is to find a combinatorial characterisation of Boolean algebras which carry a strictly positive finitely additive finite measure with some additional properties, such as separability or nonatomicity. A possible consistent characterisation for an algebra to carry a separable separable positive measure was suggested by Talagrand in 1980, which is that the Stone space K of the algebra satisfies that its (...)
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  21.  41
    Saharon Shelah, cardinal arithmetic.Mirna DŽamonja - 1998 - Studia Logica 60 (3):443-448.
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  22.  15
    (1 other version)Interview With a Set Theorist.Deborah Kant & Mirna Džamonja - 2019 - In Stefania Centrone, Deborah Kant & Deniz Sarikaya (eds.), Reflections on the Foundations of Mathematics: Univalent Foundations, Set Theory and General Thoughts. Springer Verlag. pp. 3-26.
    The status of independent statements is the main problem in the philosophy of set theory. We address this problem by presenting the perspective of a practising set theorist. We thus give an authentic insight in the current state of thinking in set-theoretic practice, which is to a large extent determined by independence results. During several meetings, the second author asked the first author about the development of forcing, the use of new axioms and set-theoretic intuition on independence. Parts of these (...)
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  23.  42
    Vassar college, 124 Raymond avenue, poughkeepsie, ny 12604, usa. In a review, a reference “jsl xliii 148,” for example, refers either to the publication reviewed on page 148 of volume 43 of the journal, or to the review itself (which contains full bibliographical information for the reviewed publication). Analogously, a reference “bsl VII 376” refers to the review beginning on page 376 in volume 7 of this bulletin, or. [REVIEW]John Baldwin, Lev Beklemishev, Anuj Dawar, Mirna Dzamonja, David Evans, Erich Grädel, Denis Hirschfeldt, Hannes Leitgeb, Roger Maddux & Grigori Mints - 2008 - Bulletin of Symbolic Logic 14 (1).
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  24. Reviewed on page 148 of volume 43 of the journal, or to the review itself (which contains full bibliographical information for the reviewed publication). Analogously, a reference" bsl VII 376" refers to the review beginning on page 376 in volume 7 of this bulletin, or. [REVIEW]Anuj Dawar Beklemishev, Mirna Dzamonja, David Evans & Erich Gr - 2008 - Bulletin of Symbolic Logic 14 (4).
     
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  25. Vassar college, 124 Raymond avenue, poughkeepsie, ny 12604, usa. In a review, a reference “jsl xliii 148,” for example, refers either to the publication reviewed on page 148 of volume 43 of the journal, or to the review itself (which contains full bibliographical information for the reviewed publication). Analogously, a reference “bsl VII 376” refers to the review beginning on page 376 in volume 7 of this bulletin, or. [REVIEW]Anuj Dawar Beklemishev, Mirna Dzamonja, David Evans, Erich Grädel, Denis Hirschfeldt, Hannes Leitgeb, Roger Maddux, Grigori Mints, Volker Peckhaus & Sławomir Solecki - 2008 - Bulletin of Symbolic Logic 14 (4).
     
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  26.  37
    Vassar college, 124 Raymond avenue, poughkeepsie, ny 12604, usa. In a review, a reference “jsl xliii 148,” for example, refers either to the publication reviewed on page 148 of volume 43 of the journal, or to the review itself (which contains full bibliographical information for the reviewed publication). Analogously, a reference “bsl VII 376” refers to the review beginning on page 376 in volume 7 of this bulletin, or. [REVIEW]Mark Colyvan Burgess, Anuj Dawar, Mirna Dzamonja, Marcelo Fiore & Hannes Leitgeb - 2009 - Bulletin of Symbolic Logic 15 (4).
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  27.  21
    The Singular World of Singular Cardinals. [REVIEW]Mirna Džamonja - 2015 - In Åsa Hirvonen, Juha Kontinen, Roman Kossak & Andrés Villaveces (eds.), Logic Without Borders: Essays on Set Theory, Model Theory, Philosophical Logic and Philosophy of Mathematics. Boston: De Gruyter. pp. 139-146.
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  28. (1 other version)Books to asl, box 742, vassar college, 124 Raymond avenue, poughkeepsie, ny 12604, usa. In a review, a reference “jsl xliii 148,” for example, refers either to the publication reviewed on page 148 of volume 43 of the journal, or to the review itself (which contains full bibliographical information for the reviewed publication). Analogously, a reference. [REVIEW]Mirna Dzamonja, David M. Evans, Erich Grädel, Geoffrey P. Hellman, Denis Hirschfeldt, Julia Knight, Michael C. Laskowski, Roger Maddux, Volker Peckhaus & Wolfram Pohlers - 2005 - Bulletin of Symbolic Logic 11 (2).
     
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