Dongyang Chen's user avatar
Dongyang Chen's user avatar
Dongyang Chen's user avatar
Dongyang Chen
  • Member for 10 years, 4 months
  • Last seen more than a month ago
10 votes
1 answer
392 views

Subspaces of $l_{1}$ are not Lipschitz complemented in $l_{1}$

10 votes
1 answer
496 views

A quantity measuring the separability of Banach spaces

9 votes
2 answers
397 views

On statistical bases in Banach spaces

8 votes
2 answers
425 views

Banach spaces whose second conjugates are separable

7 votes
1 answer
485 views

Banach-Stone Theorem in Lipschitz-free spaces

7 votes
3 answers
426 views

Weak compactness in the James space and its dual

7 votes
1 answer
121 views

About $C(K)$-spaces containing no copy of $l_{1}$

6 votes
1 answer
210 views

Is $T^{**}$ unconditionally $p$-summing whenever $T$ is unconditionally $p$-summing?

6 votes
2 answers
276 views

The Calkin representation for Banach spaces

6 votes
2 answers
486 views

A question on Grothendieck space

6 votes
1 answer
201 views

$C[0,1]$ fails the property (K)

5 votes
2 answers
295 views

A quantity measuring the reflexivity of Banach spaces

5 votes
0 answers
132 views

Banach space properties defined by compact operators, strictly singular operators and strictly cosingular operators

5 votes
1 answer
115 views

A question on compact operators with domain $l_{p}$

5 votes
1 answer
127 views

A question on characterizing a Banach space containing no copy of $l_{1}$

5 votes
0 answers
100 views

Products of strictly singular operators on $L_{p}[0,1]$ or on $C[0,1]$

4 votes
1 answer
2k views

The dual space of $C[0,1]$

4 votes
0 answers
190 views

On the weakly sequential completeness of the dual of the James space $J$

4 votes
1 answer
138 views

How to characterize a Banach space $X$ such that any operator from $X$ to $l_{p}$ is compact?

4 votes
1 answer
293 views

A question on $p$-approximation property

4 votes
0 answers
166 views

Is the space $U_{0}$ constructed by J.Lindenstrauss Lipschitz complemented in $l^{1}$?

4 votes
0 answers
39 views

How to characterize an operator $T$ that factors through a special space?

4 votes
0 answers
123 views

A question on metric characterization of approximation property

4 votes
1 answer
153 views

A quantity measuring weak non-compactness

4 votes
1 answer
242 views

A question on completely continuous operators

4 votes
0 answers
83 views

Almost Dunford-Pettis operators

4 votes
1 answer
71 views

Two measures of noncompactness of operators

4 votes
1 answer
85 views

A subspace generated by closed $G_{\delta}$ sets in $K$ between $C(K)$ and $C(K)^{**}$

4 votes
1 answer
202 views

$c_{0}$ has no boundedly complete basis

4 votes
1 answer
224 views

Boundedly complete bases

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