Search Results - "Sapir, M"

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    Conjugacy problem in groups with quadratic Dehn function by Olshanskii, A. Yu, Sapir, M. V.

    Published in Bulletin of mathematical sciences (01-04-2020)
    “…We construct a finitely presented group with quadratic Dehn function and undecidable conjugacy problem. This solves Rips’ problem formulated in 1994…”
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    Diagram groups and directed 2-complexes: Homotopy and homology by Guba, V.S., Sapir, M.V.

    Published in Journal of pure and applied algebra (01-04-2006)
    “…We show that diagram groups can be viewed as fundamental groups of spaces of positive paths on directed 2-complexes (these spaces of paths turn out to be…”
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    On Dehn functions of free products of groups by Guba, V. S., Sapir, M. V.

    “…In this article we show that the Dehn function of a nontrivial free product of groups is equivalent to its subnegative closure…”
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    Isoperimetric Functions of Groups and Computational Complexity of the Word Problem by J.-C. Birget, A. Yu Ol'shanskii, Rips, E., Sapir, M. V.

    Published in Annals of mathematics (01-09-2002)
    “…We prove that the word problem of a finitely generated group G is in NP (solvable in polynomial time by a nondeterministic Turing machine) if and only if this…”
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    Diagram groups are totally orderable by Guba, V.S., Sapir, M.V.

    Published in Journal of pure and applied algebra (01-04-2006)
    “…In this paper, we introduce the concept of the independence graph of a directed 2-complex. We show that the class of diagram groups is closed under graph…”
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    A note on the continuous extensions of injective morphisms between free groups to relatively free profinite groups by Coulbois, T., Sapir, M., Weil, P.

    Published in Publicacions matemàtiques (2003)
    “…Let V be a pseudovariety of finite groups such that free groups are residually V, and let φ: F(A) → F(B) be an injective morphism between finitely generated…”
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    Irreducibility of certain pseudovarieties by Margolis, S., Sapir, M., Weil, P.

    Published in Communications in algebra (01-01-1998)
    “…We prove that the pseudovarieties of all finite semigroups, and of all aperiodic finii e semigroups are irreducible for join, for semidirect product and for…”
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    Reversal of age-related cognitive impairments by an M1 cholinergic agonist, AF102B by Brandeis, R, Dachir, S, Sapir, M, Levy, A, Fisher, A

    Published in Pharmacology, biochemistry and behavior (01-05-1990)
    “…This study examined the effect of a specific M1 cholinergic agonist, AF102B, on place learning of aged and young rats. Spatial reference memory was tested in…”
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    AF150(S) : a new functionally selective M1 agonist improves cognitive performance in rats by BRANDEIS, R, SAPIR, M, HAFIF, N, ABRAHAM, S, OZ, N, STEIN, E, FISHER, A

    Published in Pharmacology, biochemistry and behavior (01-08-1995)
    “…This study was aimed at evaluating the ability of a new functionally selective partial M1 agonist, AF150(S), to reverse cognitive impairments in rats. A memory…”
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    Improvement of cognitive function by MAO-B inhibitor L-deprenyl in aged rats by Brandeis, R, Sapir, M, Kapon, Y, Borelli, G, Cadel, S, Valsecchi, B

    Published in Pharmacology, biochemistry and behavior (01-06-1991)
    “…This study evaluated the ability of the selective MAO-B inhibitor, L-deprenyl, to reverse cognitive impairments appearing in aged rats, using the reference…”
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    Tree-graded spaces and asymptotic cones of groups by Druţu, Cornelia, Sapir, Mark

    Published in Topology (Oxford) (2005)
    “…We introduce a concept of tree-graded metric space and we use it to show quasi-isometry invariance of certain classes of relatively hyperbolic groups, to…”
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    (+-)-cis-2-methyl-spiro(1,3-oxathiolane-5,3') quinuclidine (AF102B): a new M1 agonist attenuates cognitive dysfunctions in AF64A-treated rats by Fisher, A, Brandeis, R, Pittel, Z, Karton, I, Sapir, M, Dachir, S, Levy, A, Heldman, E

    Published in Neuroscience letters (31-07-1989)
    “…(+-)-cis-2-Methyl-spiro(1,3-oxathiolane-5,3')quinuclidine (AF102B), a new muscarinic agonist of utmost rigidity, exhibits a high selectivity for M1 muscarinic…”
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