List questions from reflection

Published on 01 Feb 2013 - 19:02

235

Views

2012 EGMO P7: Show that the lines $KH$, $EM$ and $BC$ are concurrent [ Proof Verification needed]

Published on 26 Mar 2026 - 9:19

181

Views

Questions about the reflection operator on an inner product space

Published on 09 Aug 2020 - 1:15

530

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The Householder "Rank" of Orthogonal Matrix

Published on 13 Aug 2020 - 10:48

453

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The exact number of Givens rotations required to describe an orthogonal matrix.

Published on 13 Aug 2020 - 10:58

68

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Find $AD\cdot AF$ when point $C$ is reflected across $AD$

Published on 24 Aug 2020 - 4:10

292

Views

Commutative reflections in the plane

Published on 26 Aug 2020 - 10:30

98

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Number of ways to arrange N objects of type A and N objects of type B

Published on 05 Sep 2020 - 21:55

165

Views

Mirror reflection and orthogonal transformation

Published on 11 Sep 2020 - 9:18

582

Views

Is there a particular order to doing reflections when there is an inverse reflection (about the line y=x) involved?

Published on 14 Sep 2020 - 4:39

124

Views

Are all the elements of order $2$ in a symmetric group reflections of some object with respect to some axis of reflection?

Published on 19 Sep 2020 - 10:09

48

Views

invariant space, complex reflexion group

Published on 21 Sep 2020 - 17:00

127

Views

Graph Transformation - reflection and right shift

Published on 22 Sep 2020 - 23:02

330

Views

Higher-dimensional reflections

Published on 24 Sep 2020 - 10:06

76

Views

Why Two line coincide in the product of reflections

Published on 17 Oct 2020 - 17:31

List Question

Using the three reflection theorem

2012 EGMO P7: Show that the lines $KH$, $EM$ and $BC$ are concurrent [ Proof Verification needed]

Questions about the reflection operator on an inner product space

The Householder "Rank" of Orthogonal Matrix

The exact number of Givens rotations required to describe an orthogonal matrix.

Find $AD\cdot AF$ when point $C$ is reflected across $AD$

Commutative reflections in the plane

Number of ways to arrange N objects of type A and N objects of type B

Mirror reflection and orthogonal transformation

Is there a particular order to doing reflections when there is an inverse reflection (about the line y=x) involved?

Are all the elements of order $2$ in a symmetric group reflections of some object with respect to some axis of reflection?

invariant space, complex reflexion group

Graph Transformation - reflection and right shift

Higher-dimensional reflections

Why Two line coincide in the product of reflections

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