Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Latest activity
Register
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Euge's latest activity
Euge
posted the thread
POTW
Find the Dimension of a Subspace of Matrices
in
Math POTW for University Students
.
Given a complex matrix ##A\in M_n(\mathbb{C})##, let ##X_A## be the subspace of ##M_n(\mathbb{C})## consisting of all the complex...
Sunday, 8:54 PM
Euge
posted the thread
POTW
Sum of an Alternating Series
in
Math POTW for University Students
.
Find, with proof, the sum of the alternating series $$\sum_{n = 0}^\infty \frac{(-1)^n}{(2n+1)^3}$$
Apr 28, 2024
Euge
replied to the thread
POTW
Groups of Prime Power Order
.
Apr 28, 2024
Euge
replied to the thread
POTW
Closed subspace of square-integrable functions on D
.
Note that ##M## is to depend only on ##K##, but your ##M## depends on ##u##.
Apr 12, 2024
Euge
replied to the thread
POTW
Closed subspace of square-integrable functions on D
.
For a suggestion, try to prove first that if ##u\in \mathcal{O}(\mathbb{D}) \cap L^2(\mathbb{D})##, then for every compact ##K \subset...
Apr 6, 2024
Euge
posted the thread
POTW
Closed subspace of square-integrable functions on D
in
Math POTW for Graduate Students
.
Let ##\mathbb{D}## be the open unit disk in ##\mathbb{C}##. Show that the space ##\mathcal{O}(\mathbb{D}) \cap L^2(\mathbb{D})## of...
Mar 31, 2024
Euge
posted the thread
POTW
Groups of Prime Power Order
in
Math POTW for University Students
.
If ##p## is a prime, and ##G## is a finite non-cyclic ##p##-group, show that there is a normal subgroup ##N## of ##G## such that ##G/N##...
Mar 31, 2024
Forums
Back
Top