Nino Partsvania ON TWO-POINT BOUNDARY VALUE PROBLEMS FOR TWO-DIMENSIONAL LINEAR DIFFERENTIAL SYSTEMS WITH SINGULAR COEFFICIENTS
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چکیده
Two-point boundary value problems for two-dimensional systems of linear differential equations with singular coefficients are considered. The cases are optimally described when the above-mentioned problems have the Fredholm property, and unimprovable in a certain sense conditions are established guaranteeing the unique solvability of those problems. îâäæñéâ. àŽêýæèñèæŽ ëîûâîðæèëãŽêæ ïŽïŽäôãîë ŽéëùŽêâIJæ ûîòæã áæòâîâêùæŽèñî àŽêðëèâIJŽåŽ ëîàŽêäëéæèâIJæŽêæ ïæïðâéâIJæïŽåãæï ïæêàñèŽîñèæ çëâòæùæâêðâIJæå. ëìðæéŽèñîŽáŽŽ Žôûâîæèæ öâéåýãâãâIJæ, îëùŽ Žôêæöêñè ŽéëùŽêâIJï àŽŽøêæŽå òîâáßëèéæï åãæïâIJŽ, ᎠáŽáàâêæèæŽ àŽîçãâñèæ Žäîæå ŽîŽàŽñéþëIJâïâIJŽáæ ìæîëIJâIJæ, îëéèâIJæù ñäîñêãâèõëòâê Žé ŽéëùŽêâIJæï ùŽèïŽýŽá ŽéëýïêŽáëIJŽï. 2010 Mathematics Subject Classification. 34B05.
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