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Displaying 221 – 240 of 856

The exact sequence in the homology of groups with integral coefficients modulo $q$ associated to two normal subgroups

C. Rodríguez-Fernández, E. G. Rodeja Fernández (1991)

Cahiers de Topologie et Géométrie Différentielle Catégoriques

The existence and structure of IRR(X).

M. Mislove (1972)

Semigroup forum

The existence of equivariant pure free resolutions

David Eisenbud, Gunnar Fløystad, Jerzy Weyman (2011)

Annales de l’institut Fourier

Let $A = K [x_{1}, \dots, x_{m}]$ be a polynomial ring in $m$ variables and let $d = (d_{0} < \dots < d_{m})$ be a strictly increasing sequence of $m + 1$ integers. Boij and Söderberg conjectured the existence of graded $A$ -modules $M$ of finite length having pure free resolution of type $d$ in the sense that for $i = 0, \dots, m$ the $i$ -th syzygy module of $M$ has generators only in degree $d_{i}$ .This paper provides a construction, in characteristic zero, of modules with this property that are also $G L (m)$ -equivariant. Moreover, the construction works over rings of the form $A \otimes_{K} B$ where $A$ is a polynomial...

The existence of identity of orthodox semigroup rings.

F. Li (1993)

Semigroup forum

The exponent semigroup of a semigroup satisfying (XY)3 = x3 Y3.

Y. Kobayashi (1980)

Semigroup forum

The Extension Theory of the Symmetric and Alternating Groups.

Norman Blackburn (1970)

Mathematische Zeitschrift

The $F$ -local subgroups of the groups with a generalized finite element of order 2 or 4.

Sozutov, A.I., Yanchenko, M.V. (2007)

Sibirskij Matematicheskij Zhurnal

The Factorisation of the Alternating and Symmetric Groups.

James Wiegold, Alan G. Williamson (1980)

Mathematische Zeitschrift

The factorizable transformation semigroups.

Y. Tirasupa (1979)

Semigroup forum

The Faithful Linear Representation of Least Degree of Sn and An over a Field of Characteristic 2.

Ascher Wagner (1976)

Mathematische Zeitschrift

The Faithful Linear Representations of Least Degree of Sn and An over a Field of Odd Characteristics.

Ascher Wagner (1977)

Mathematische Zeitschrift

The Farey graph.

Jones, Gareth A. (1987)

Séminaire Lotharingien de Combinatoire [electronic only]

The Farrell cohomology of $Sp (p - 1, ℤ)$ .

Busch, Cornelia (2002)

Documenta Mathematica

The Fibonacci automorphism of free Burnside groups

Ashot S. Pahlevanyan (2011)

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications

We prove that the Fibonacci morphism is an automorphism of infinite order of free Burnside groups for all odd $n \geq 665$ and even $n = 16 k \geq 8000$ .

The Fibonacci automorphism of free Burnside groups

Ashot S. Pahlevanyan (2011)

RAIRO - Theoretical Informatics and Applications

We prove that the Fibonacci morphism is an automorphism of infinite order of free Burnside groups for all odd $n \geq 665$ and even $n = 16 k \geq 8000$ .

The finite basis problem in the pseudovariety joins of aperiodic semigroups with groups.

P.G. Trotter, M.V. Volkov (1996)

Semigroup forum

The finite basis question for semigroups of order less than six.

A.N. Trahtman (1983)

Semigroup forum

The finite subgroups of maximal arithmetic kleinian groups

Ted Chinburg, Eduardo Friedman (2000)

Annales de l'institut Fourier

Given a maximal arithmetic Kleinian group $Γ \subset PGL (2, ℂ)$ , we compute its finite subgroups in terms of the arithmetic data associated to $Γ$ by Borel. This has applications to the study of arithmetic hyperbolic 3-manifolds.

The Finiteness Obstructions for Nilpotent Spaces lie in D (...).

G. Mislin, K. Varadarajan (1979)

Inventiones mathematicae

The finiteness of a base of indentities for fiveelement monoids

A.V. Tishchenko (1980)

Semigroup forum

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