Euler Characteristics of Discrete Groups and G-Spaces.
Euler Characteristics of Groups.
Euler Characteristics of Groups: The p-Fractional Part.
Eulerian idempotent and Kashiwara-Vergne conjecture
By using the interplay between the Eulerian idempotent and the Dynkin idempotent, we construct explicitly a particular symmetric solution of the first equation of the Kashiwara-Vergne conjectureThen, we explicit all the solutions of the equation in the completion of the free Lie algebra generated by two indeterminates and thanks to the kernel of the Dynkin idempotent.
Eulerian numbers, Foulkes characters and Lefschetz characters of the symmetric group.
E-unitary R-unipotent semigroups.
Évaluation asymptotique de l'ordre maximum d'un élément du groupe symétrique
E-varieties of regular semigroups, relatively bifree objects and fully invariant congruences.
Evasion and prediction - the Specker phenomenon and Gross space.
Every -group with all subgroups normal-by-finite is locally finite
A group has all of its subgroups normal-by-finite if is finite for all subgroups of . The Tarski-groups provide examples of -groups ( a “large” prime) of nonlocally finite groups in which every subgroup is normal-by-finite. The aim of this paper is to prove that a -group with every subgroup normal-by-finite is locally finite. We also prove that if for every subgroup of , then contains an Abelian subgroup of index at most .
Every braid admits a short sigma-definite expression
A result by Dehornoy (1992) says that every nontrivial braid admits a -definite expression, defined as a braid word in which the generator with maximal index appears with exponents that are all positive, or all negative. This is the ground result for ordering braids. In this paper, we enhance this result and prove that every braid admits a -definite word expression that, in addition, is quasi-geodesic. This establishes a longstanding conjecture. Our proof uses the dual braid monoid and a new...
Every Cotorsion-free Algebra is an Endomorphism Algebra.
Every Finite Complex has the Homology of a Duality Group.
Every group is a maximal subgroup of the semigroup of relations
Every reasonably sized matrix group is a subgroup of S ∞
Every reasonably sized matrix group has an injective homomorphism into the group of all bijections of the natural numbers. However, not every reasonably sized simple group has an injective homomorphism into .
Every subsemigroup of a free semigroup with zero is not an R-semigroup.
Exact Borel subalgebras of quasi-heriditary algebras, I (with an appendix by Leonard Scott).
Exact category of hypermodules.
Exact covering systems for groups
Exactitude à gauche du foncteur de cohomologie bornée réelle