Ivan Shishkin, Rye (1878)

Problems

30 problems / 21 domains

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Showing 30 problems

60

An integral limit

Riemann integration · Real analysis · 0 solved · Unreviewed

by Sequoia
0
34

When someone takes your sit in the train...

Probability on finite spaces · Combinatorics · 0 solved · Unreviewed

by Sequoia
0
18

Keeper's keys issue

Combinatorics · Probability on finite spaces · 0 solved · Unreviewed

by Sequoia
0
14

How to split a chocolate bar

Combinatorics · 1 solved · Reviewed

by Sequoia
1
54

Cauchy determinantal formula

Rings · Linear algebra · 0 solved · Unreviewed

by Sequoia
0
57

Sequence of iterated sinus

Sequences and series · 0 solved · Unreviewed

by Sequoia
0
32

Cesaro Theorem

Riemann integration · Sequences and series · 0 solved · Unreviewed

by Sequoia
0
24

Eulerian path in a finite graph

Graphs and discrete math · 0 solved · Reviewed

by Sequoia
0
20

Equality modulo pp and general equality

Number theory · 0 solved · Unreviewed

by Sequoia
0
63

A beautiful identity between polynomials

Combinatorics · 0 solved · Unreviewed

cycledecomposition in product of cyclespermutationspolynomials
by Sequoia
0
43

Divisors of zero in a commutative ring

Rings · 0 solved · Unreviewed

divisorsfinite ringring
by Sequoia
0
42

Group with all elements of order 2

Algebra · Groups · 0 solved · Unreviewed

abelian groupfinite groupgroup isomorphism
by Sequoia
0
70

Polynomials that induce a surjection

Real analysis · 0 solved · Unreviewed

polynomialsurjection
by Sequoia
0
67

Wirtinger's inequality

Other · Riemann integration · Real analysis · 0 solved · Unreviewed

inequality
by Sequoia
0
35

A necessary condition to be prime ?

Number theory · 1 solved · Unreviewed

arithmetic
by Sequoia
1
34

Gcd of two Mersenne numbers

Number theory · 0 solved · Reviewed

arithmeticgcd
by Sequoia
0
17

About tall people issues

Number theory · 0 solved · Unreviewed

arithmetics
by Sequoia
0
09

Five in a square

Combinatorics · 1 solved · Reviewed

by Sequoia
1
26

Forest tournament

Combinatorics · 0 solved · Reviewed

by Sequoia
0
20

Two equations with integer functions

Differential equations · 1 solved · Reviewed

functional equationintegers
by Sequoia
0
12

Quick exercise on set theory

Set theory · 1 solved · Unreviewed

intersectionset theoryunion
by Sequoia
0
45

A big weird limit

Real analysis · Power series · Real functions · 0 solved · Unreviewed

limitpower series
by Sequoia
1
07

Is it arithmetic ? Or geometric ?

Sequences and series · 1 solved · Unreviewed

recurrence relationsequence
by Sequoia
0
11

1,2,3... Shoot !

Combinatorics · 1 solved · Unreviewed

by Sequoia
2
65

Sequences whose terms are getting closer and closer

General topology · Connectedness · Sequences and series · 0 solved · Unreviewed

closed setsequencesubsequencesubsequential limit
by Sequoia
0
50

Determinant of circulant matrices

Linear algebra · 1 solved · Unreviewed

determinanteigenvaluesmatrices
by Sequoia
0
65

Lucas's theorem and an application

Sequences and series · 1 solved · Reviewed

convergenceconvex hullpolynomialsrootssequence
by Sequoia
0
54

Some bounded sequences that always converge

Sequences and series · 1 solved · Reviewed

bounded sequencescomplex numbersconvergencesequencesubsequence
by Sequoia
0
47

A cow issue

Combinatorics · spoiler domain hidden · 1 solved · Reviewed

matricesranksystem
by Sequoia
1
58

Probability of commuting in a finite group

Groups · spoiler domain hidden · 1 solved · Reviewed

finite groupprobability
by Sequoia
0