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 共查询到20条相似文献,搜索用时 15 毫秒
1.
Li  C.  Zhang  D. 《Siberian Mathematical Journal》2022,63(4):735-742
Siberian Mathematical Journal - Let $ {\mathcal{A}} $ be a unital $ \ast $ -algebra containing a nontrivial projection. Under some mild conditions on  $ {\mathcal{A}} $ ,...  相似文献   

2.
Siberian Mathematical Journal - Given an arbitrary partition  $ \sigma $ of the set of primes, we give some criteria for the $ \sigma $ -subnormality of a Sylow subgroup of...  相似文献   

3.
Mao  Y.  Ma  X.  Guo  W. 《Siberian Mathematical Journal》2021,62(1):105-113
Siberian Mathematical Journal - We prove that  $ G $ is a finite $ \sigma $ -soluble group with transitive $ \sigma $ -permutability if and only if the following hold: (i) $ G $ possesses...  相似文献   

4.
Siberian Mathematical Journal - Let $ G $ be a periodic group, and let $ \omega(G)\subseteq{??} $ be the spectrum of  $ G $ that is the set of orders of elements in ...  相似文献   

5.
Siberian Mathematical Journal - Studying the properties of almost $ \omega $ -categorical weakly $ o $ -minimal theories of convexity rank 1, we prove the orthogonality of every family of...  相似文献   

6.
Siberian Mathematical Journal - A subgroup $ A $ of a group $ G $ is $ G $ -permutable in  $ G $ if for every subgroup $ B\leq G $ there is $ x\in G $ satisfying $ AB^{x}=B^{x}A $ ....  相似文献   

7.
Siberian Mathematical Journal - We prove that there exists a universal Haar series of the form $ \sum\nolimits_{k=0}^{\infty}a_{k}h_{k}(x) $ with $ a_{k}\searrow 0 $ such that, for all $...  相似文献   

8.
Siberian Mathematical Journal - Given $ r\in\{2,3,5\} $ , we study the structure of finite non- $ r $ -decomposable groups whose every non- $ r $ -decomposable maximal subgroup is a  $...  相似文献   

9.
Siberian Mathematical Journal - We address the unital right alternative bimodules over the matrix algebras  $ {\mathrm{M}}_{n}(\Phi) $ of order $ n\geq 3 $ , prove that each of these...  相似文献   

10.
11.
Siberian Mathematical Journal - Let $ n>0 $ and let $ \sigma=\{\sigma_{i}\mid i\in I\} $ be a partition of the set of all primes $ {��} $ . We prove that the lattice of all $ n...  相似文献   

12.
Yang  N.  Wu  Zh.  Revin  D. O. 《Siberian Mathematical Journal》2022,63(2):387-394
Siberian Mathematical Journal - Let  $ \pi $ be a proper subset of the set of all primes and $ {|\pi|\geq 2} $ . Denote the smallest prime not in  $ \pi $ by  $...  相似文献   

13.
Siberian Mathematical Journal - Suppose that a von Neumann operator algebra  $ {\mathcal{M}} $ acts on a Hilbert space  $ {\mathcal{H}} $ and $ \tau $...  相似文献   

14.
Siberian Mathematical Journal - We give a simple explicit formula for an arbitrary $ 3j $ -symbol for the Lie algebra  $ {\mathfrak{gl}}_{3} $ . The symbol is...  相似文献   

15.
Siberian Mathematical Journal - Let $ G $ be a group. A subgroup $ H $ is weakly subnormal in  $ G $ if $ H=\langle A,B\rangle $ for some subnormal subgroup  $ A $ and...  相似文献   

16.
Shi  M. J.  Wang  S. K.  Li  X. X.  Krotov  D. S. 《Siberian Mathematical Journal》2021,62(5):951-962
Siberian Mathematical Journal - A frequency $ n $ -cube F $ {}^{n}(4;2,2) $ is an $ n $ -dimensional $ 4 $ -by-…-by- $ 4 $ array filled by  $ 0 $ s and  $ 1 $ s...  相似文献   

17.
Siberian Mathematical Journal - We refine some relations between the mixed smoothness moduli of fractional orders which are considered in the  $ L_{1} $ and  $ L_{q} $ metrics.  相似文献   

18.
Assume X is a normed space,every x * ∈ S(X*) can reach its norm at some point in B(X),and Y is a β-normed space.If there is a quotient space of Y which is asymptotically isometric to l β,then L(X,Y) contains an asymptotically isometric copy of l β.Some sufficient conditions are given under which L(X,Y) fails to have the fixed point property for nonexpansive mappings on closed bounded β-convex subsets of L(X,Y).  相似文献   

19.
Siberian Mathematical Journal - We describe the unital finite-dimensional simple nonconstant bimodules  $ {\mathcal{W}} $ over the matrix algebra  $ M_{2}(F) $ over...  相似文献   

20.
Siberian Mathematical Journal - We study the rings over which each square matrix is the sum of an idempotent matrix and a  $ q $ -potent matrix. We also show that if  $ F $ is...  相似文献   

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