List questions from congruence-relations

Published on 23 Nov 2016 - 19:23

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Two symmetric matrices with same characteristic polynomial are congruent.

Published on 26 Nov 2016 - 16:16

62

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On the Elsenhans-Jahnel solution to $a^4+2b^4 = c^4+4d^4$

Published on 11 Dec 2016 - 12:11

29

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Noob question about an exponential congruence

Published on 29 Jan 2017 - 0:19

180

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Congruences between Modular forms of different weight

Published on 25 Mar 2026 - 2:59

145

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Solving congruence relations in Zp where p is very large.

Published on 15 Feb 2017 - 1:57

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finding the least nonnegative residue

Published on 25 Mar 2026 - 9:23

206

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Show that a ≡ -2 mod 4 implies a ≡ 0 mod 2

Published on 23 Feb 2017 - 23:30

46

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Find the elements $[x]_{50}$ such that $[15]_{50}\cdot[x]_{50} = [0]_{50}$

Published on 06 Mar 2017 - 20:21

219

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Finding all non trivial congruence relations on (N, +)

Published on 13 Mar 2017 - 20:46

113

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When does this construction always yield a congruence?

Published on 02 Feb 2023 - 20:41

167

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Exercise 3, Section 1.5 of Hungerford’s Abstract Algebra

Published on 08 Jun 2023 - 12:50

95

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Exercise 4, Section 1.5 of Hungerford’s Abstract Algebra

Published on 09 Jun 2023 - 17:03

45

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Is there alternative symbol for congruence classes?

Published on 19 Jul 2023 - 6:52

98

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Defining Addition/Multiplication on $\Bbb Z_3$

Published on 03 Sep 2023 - 13:39

List Question

Property of Congruences on Inverse semigroups

Two symmetric matrices with same characteristic polynomial are congruent.

On the Elsenhans-Jahnel solution to $a^4+2b^4 = c^4+4d^4$

Noob question about an exponential congruence

Congruences between Modular forms of different weight

Solving congruence relations in Zp where p is very large.

finding the least nonnegative residue

Show that a ≡ -2 mod 4 implies a ≡ 0 mod 2

Find the elements $[x]_{50}$ such that $[15]_{50}\cdot[x]_{50} = [0]_{50}$

Finding all non trivial congruence relations on (N, +)

When does this construction always yield a congruence?

Exercise 3, Section 1.5 of Hungerford’s Abstract Algebra

Exercise 4, Section 1.5 of Hungerford’s Abstract Algebra

Is there alternative symbol for congruence classes?

Defining Addition/Multiplication on $\Bbb Z_3$

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