"úÁÐÉÓËÉ ÎÁÕÞÎÙÈ ÓÅÍÉÎÁÒÏ× ðïíé"

• áÌØÐÉÎ à. á. æÏÒÍÕÌÁ ÄÌÑ ÐÅÒÒÏÎÏ×Á ×ÅËÔÏÒÁ ÓÔÏÈÁÓÔÉÞÅÓËÏÊ ÍÁÔÒÉÃÙ .......5áÎÎÏÔÁÃÉÑ ðÏÌÎÙÊ ÔÅËÓÔ(.pdf)
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• éËÒÁÍÏ× è. ä., æÁÓÓÂÅÎÄÅÒ è. ë×ÁÄÒÁÔÉÞÎÏ-ÎÏÒÍÁÌØÎÙÅ É ËÏÎÇÒÕÜÎÔÎÏ-ÎÏÒÍÁÌØÎÙÅ ÍÁÔÒÉÃÙ .......45áÎÎÏÔÁÃÉÑ ðÏÌÎÙÊ ÔÅËÓÔ(.pdf)
• éËÒÁÍÏ× è. ä., þÕÇÕÎÏ× ÷. î. ï ÔÅÐÌÉÃÅ×ÙÈ ÍÁÔÒÉÃÁÈ, Ñ×ÌÑÀÝÉÈÓÑ ÏÄÎÏ×ÒÅÍÅÎÎÏ ÎÏÒÍÁÌØÎÙÍÉ É ÓÏÐÒÑÖÅÎÎÏ-ÎÏÒÍÁÌØÎÙÍÉ .......67áÎÎÏÔÁÃÉÑ ðÏÌÎÙÊ ÔÅËÓÔ(.pdf)
• ëÏÌÏÔÉÌÉÎÁ ì. à. ïÃÅÎËÉ ÏÂÁÔÎÙÈ ÄÌÑ $PM$- É $PH$-ÍÁÔÒÉà .......75áÎÎÏÔÁÃÉÑ ðÏÌÎÙÊ ÔÅËÓÔ (.pdf)
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• èÁÚÁÎÏ× ÷. â. âÁÌÁÎÓÏ×ÏÅ ÓÏÏÔÎÏÛÅÎÉÅ ÓÐÅËÔÒÁÌØÎÙÈ ÈÁÒÁËÔÅÒÉÓÔÉË ÍÎÏÇÏÐÁÒÁÍÅÔÒÉÞÅÓËÏÊ ÐÏÌÉÎÏÍÉÁÌØÎÏÊ ÍÁÔÒÉÃÙ .......187áÎÎÏÔÁÃÉÑ ðÏÌÎÙÊ ÔÅËÓÔ (.pdf)
• ñËÏ×ÌÅ× í. î. ïÃÅÎËÁ ÐÏÇÒÅÛÎÏÓÔÉ ÍÅÔÏÄÁ òÉÔÃÁ × ÓÌÕÞÁÅ ÚÁÄÁÞÉ ìÉÄÓÔÏÎÁ ÄÌÑ ÓÉÎÇÕÌÑÒÎÏÇÏ ÄÉÆÆÅÒÅÎÃÉÁÌØÎÏÇÏ ÕÒÁ×ÎÅÎÉÑ ÞÅÔ×ÅÒÔÏÇÏ ÐÏÒÑÄËÁ .......195áÎÎÏÔÁÃÉÑ ðÏÌÎÙÊ ÔÅËÓÔ (.pdf)
• òÅÆÅÒÁÔÙ ....... 202(.pdf)

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Contents 
• Al'pin Yu. A. A formula for the Perron vector of a stochastic matrix .......5
• Demjanovich Yu. K., Kosogorov O. M. Splines and biorthogonal systems .......9
• Ikramov Kh. D. Verifying unitary congruence of coninvolutions, skew-coninvolutions, and connilpotent matrices of index two .......27
• Ikramov Kh. D. Improved bounds for the recursion width in methods of congruent type for solving systems of linear equations .......33
• Ikramov Kh. D., Fassbender H. Quadratically normal and congruence-normal matrices .......45
• Ikramov Kh. D., Chugunov V. N. On Toeplitz matrices that are si\-mul\-ta\-ne\-ous\-ly normal and conjugate-normal .......67
• Kolotilina L. Yu. Bounds for the inverses of $PM$- and $PH$-matrices .......75
• Kolotilina L. Yu. Diagonal dominance characterization of $PM$- and $PH$-matrices .......110
• Kublanovskaya V. N. To solving problems of algebra for two-parameter matrices. 4 .......121
• Kublanovskaya V. N. To solving problems of algebra for two-parameter matrices. 5 .......145
• Kublanovskaya V. N., Khazanov V. B. To solving problems of algebra for two-parameter matrices. 6 .......171
• Khazanov V. B. Balance relation for the spectral characteristics of a multiparameter polynomial matrix .......187
• Yakovlev M. N. A bound for the error of the Ritz method in the case of the Lidstone problem for a singular differential equation of fourth order .......195
• Reviews ....... 202

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• Paging 207 pp.

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