The freeness of ideal subarrangements of Weyl arrangements

Takuro Abe; Mohamed Barakat; Michael Cuntz; Torsten Hoge; Hiroaki Terao

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Displaying similar documents to “The freeness of ideal subarrangements of Weyl arrangements”

Supersolvable orders and inductively free arrangements

Ruimei Gao, Xiupeng Cui, Zhe Li (2017)

Open Mathematics

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In this paper, we define the supersolvable order of hyperplanes in a supersolvable arrangement, and obtain a class of inductively free arrangements according to this order. Our main results improve the conclusion that every supersolvable arrangement is inductively free. In addition, we assert that the inductively free arrangement with the required induction table is supersolvable.

Free Arrangements and Relation Spaces.

K.A. Brandt, H. Terao (1994)

Discrete & computational geometry

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Free hyperplane arrangements between A n -1 and Bn.

Paul H. Edelman, Victor Reiner (1994)

Mathematische Zeitschrift

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Properties of measure and category in generalized Cohen's and Silver's forcing

Miroslav Repický (1987)

Acta Universitatis Carolinae. Mathematica et Physica

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Relationship between ideals of BCI-algebras and order ideals of its adjoint semigroup.

Kondo, Michiro (2001)

International Journal of Mathematics and Mathematical Sciences

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Positive Implicative Soju Ideals in BCK-Algebras

Xiao Long Xin, Rajab Ali Borzooei, Young Bae Jun (2019)

Bulletin of the Section of Logic

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The notion of positive implicative soju ideal in BCK-algebra is introduced, and several properties are investigated. Relations between soju ideal and positive implicative soju ideal are considered, and characterizations of positive implicative soju ideal are established. Finally, extension property for positive implicative soju ideal is constructed.

Freeness of hyperplane arrangements and related topics

Masahiko Yoshinaga (2014)

Annales de la faculté des sciences de Toulouse Mathématiques

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These are the expanded notes of the lecture by the author in “Arrangements in Pyrénées”, June 2012. We are discussing relations of freeness and splitting problems of vector bundles, several techniques proving freeness of hyperplane arrangements, K. Saito’s theory of primitive derivations for Coxeter arrangements, their application to combinatorial problems and related conjectures.

P-ideals and F-ideals in rings of continuous functions

David Rudd (1975)

Fundamenta Mathematicae

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Relative Act Ideals

Eugene M. Norris (1974)

Matematický časopis

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Norms on possibilities. II: More ccc ideals on $2^{ω}$ .

Rosłanowski, Andrzej, Shelah, Saharon (1997)

Journal of Applied Analysis

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