query: What does the operator $\mathop{\large\mathrm K}_{i=1}^\infty$ stand for?
positive_passages.docid: 29444
positive_passages.text: Weird large K symbol
negative_passages.docid: 141286
negative_passages.text: When is $\mathbf{X}^{T}\mathbf{X}+\lambda\mathbf{I}$ invertible?
negative_passages.docid: 97968
negative_passages.text: Does $\big|\sum_{k=1}^na_k\big|\leq\sqrt{n}$ imply the convergence of $\sum_{1}^\infty \frac{a_k}{k}$?
negative_passages.docid: 147705
negative_passages.text: Show that $\mathbb{E}(T) = \sum\limits^\infty_{k=1}\mathbb{P}(T \geq k)$ for $T$ nonnegative integer valued and $E[T] < \infty$
negative_passages.docid: 26338
negative_passages.text: Does $1^{\infty}=e$ or $1^{\infty}=1$?
negative_passages.docid: 92281
negative_passages.text: Normal Operator that is not Self-Adjoint
negative_passages.docid: 40830
negative_passages.text: Meaning of $\int\mathop{}\!\mathrm{d}^4x$
negative_passages.docid: 156727
negative_passages.text: A step in the proof of Characterization of $W^{1,\infty}$
negative_passages.docid: 105772
negative_passages.text: Definition of $\mathbb{R}^\infty$
negative_passages.docid: 58741
negative_passages.text: Operator Exponential $e^A e^B = e^{A+B}$
negative_passages.docid: 95450
negative_passages.text: Why does $\left(1+ 1/k\right)^k$ converge to $e$ as $k \to\infty$?
negative_passages.docid: 102585
negative_passages.text: Why is $L^{\infty}$ not separable?
negative_passages.docid: 115376
negative_passages.text: Is $(-\infty,3]\cap(0,1)^c\cap[-1,\infty)$ closed? Open? What are interior points?
negative_passages.docid: 45179
negative_passages.text: When does the isomorphism $G\simeq \ker(\phi)\times \operatorname{im}(\phi)$? hold?
negative_passages.docid: 96452
negative_passages.text: Is the closedness of the image of a Fredholm operator implied by the finiteness of the codimension of its image?
negative_passages.docid: 103572
negative_passages.text: Does $\sum_{m=1}^{\infty}\sum_{n=1}^{\infty}a_{mn}^3=\sum_{n=1}^{\infty}\sum_{m=1}^{\infty}a_{mn}^3$ occur here?
negative_passages.docid: 10383
negative_passages.text: The $ l^{\infty} $-norm is equal to the limit of the $ l^{p} $-norms.