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We prove mean and pointwise ergodic theorems for general families of averages on a semisimple algebraic (or S-algebraic) group G, together with an explicit rate of convergence when the action has a spectral gap. Given any lattice Γ in G, we use the ergodic theorems for G to solve the lattice point counting problem for general domains in G, and prove mean… (More)

- A N Nevo, A B Pshenichnikova, D A Skladnev, V I Shvets
- Mikrobiologiia
- 2004

The adaptation of the methylotrophic bacterium Methylophilus sp. B-7741 to growth in highly deuterated media was studied. For the first time, we showed the cross adaptation of bacterial cells to deuterated media and oxidative and osmotic stresses. The activity at catalase in deuterated cells was higher than in the control cells. Deuterated cell-free culture… (More)

For a locally compact second countable group G and a lattice subgroup Γ, we give an explicit quantitative solution of the lattice point counting problem in general domains in G, provided that i) G has finite upper local dimension, and the domains satisfy a basic regularity condition, ii) the mean ergodic theorem for the action of G on G/Γ holds, with a rate… (More)

- Amos Nevo, Peter Sarnak
- 2009

We develop the affine sieve in the context of orbits of congruence subgroups of semi-simple groups acting linearly on affine space. In particular we give effective bounds for the saturation numbers for points on such orbits at which the value of a given polynomial has few prime factors. In many cases these bounds are of the same quality as what is known in… (More)

Let 0 denote a word-hyperbolic group, and let S = S 01 denote a nite symmetric set of generators. Let S n = fw : jwj = ng denote the sphere of radius n, where j1j denotes the word length on 0 induced by S. Dene n d = 1 #S n P w2S n w, and n = 1 n+1 P n k=0 k. Let (X; B; m) be a probability space on which 0 acts ergodically by measure preserving… (More)

We consider actions of non-compact simple Lie groups preserving an analytic rigid geometric structure of algebraic type on a compact manifold. The structure is not assumed to be uni-modular, so an invariant measure may not exist. Ergodic stationary measures always exist, and when such a measure has full support, we show the following. 1) Either the manifold… (More)

- A B Pshenichnikova, A N Nevo, E V Volkova, D A Skladnev, V I Shvets
- Prikladnaia biokhimiia i mikrobiologiia
- 2004

We studied the effect of deuterium oxide present in the medium on the activity of methanol dehydrogenase (EC 1.1.99.8) from methylotrophic bacteria Methylophilus sp. B-7741. Methanol dehydrogenase activity in extracts of the biomass obtained in a highly deuterated medium (2H-enzyme) was 34-47% of enzyme activity in the control biomass, which depended on… (More)

- Amos Nevo, Peter Sarnak
- 2008

We develop the affine sieve in the context of orbits of congruence subgroups of semi-simple groups acting linearly on affine space. In particular we give effective bounds for the saturation numbers for points on such orbits at which the value of a given polynomial has few prime factors. In many cases these bounds are of the same quality as what is known in… (More)

- Douglas Bauer, Hajo Broersma, +5 authors M. Yatauro
- Graphs and Combinatorics
- 2015

- Douglas Bauer, A. Nevo, Edward F. Schmeichel
- Graphs and Combinatorics
- 2016