ultra bessel sequences in direct sums of hilbert spaces
نویسندگان
چکیده
in this paper, we establish some new results in ultra bessel sequences and ultra bessel sequences of subspaces. also, we investigate ultra bessel sequences in direct sums of hilbert spaces.specially, we show that {( fi, gi)}∞ i=1 is a an ultra bessel sequencefor hilbert space h ⊕ k if and only if { fi}∞ i=1 and {gi}∞ i=1 are ultrabessel sequences for hilbert spaces h and k, respectively.
منابع مشابه
Ultra Bessel sequences in direct sums of Hilbert spaces
In this paper, we establish some new results in ultra Bessel sequences and ultra Bessel sequences of subspaces. Also, we investigate ultra Bessel sequences in direct sums of Hilbert spaces. <span style="font-family: NimbusRomNo9L-Regu; font-size: 11pt; color: #000000; font-s...
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عنوان ژورنال:
wavelet and linear algebraناشر: vali-e-asr university of rafsanjan
ISSN 2383-1936
دوره 2
شماره 1 2015
کلمات کلیدی
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