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15
Math.TechQA.Club
2026-04-09 22:40:21
121
Views
Projection operator onto the diagonal on Fock space.
Published on
09 Apr 2026 - 22:40
#functional-analysis
#operator-theory
#mathematical-physics
344
Views
foliation of a globally hyperbolic spacetime by Cauchy hypersurfaces
Published on
10 Apr 2026 - 16:31
#differential-geometry
#vector-analysis
#mathematical-physics
#semi-riemannian-geometry
#foliations
843
Views
Hamiltonian system ODE
Published on
14 Apr 2026 - 15:45
#ordinary-differential-equations
#systems-of-equations
#dynamical-systems
#mathematical-physics
1k
Views
Parity relation for Legendre polynomials
Published on
14 Apr 2026 - 17:01
#physics
#mathematical-physics
#parity
50
Views
A question on the density matrix of two separate systems, tensor products and index notation
Published on
13 Apr 2026 - 2:05
#hilbert-spaces
#mathematical-physics
#quantum-mechanics
93
Views
What is the derivative of $x \times y$ with respect to $x$
Published on
13 Apr 2026 - 20:19
#calculus
#multivariable-calculus
#derivatives
#mathematical-physics
103
Views
Classical Mechanics, Euler-Lagrange equation, Conservative Force.
Published on
09 Apr 2026 - 19:43
#physics
#mathematical-physics
166
Views
Spherical Harmonics Sum Identity
Published on
09 Apr 2026 - 5:41
#summation
#physics
#mathematical-physics
#legendre-polynomials
#spherical-harmonics
127
Views
Time taken for a floor to reach the ground
Published on
14 Apr 2026 - 20:27
#mathematical-physics
164
Views
How to advance Physics?
Published on
09 Apr 2026 - 10:12
#soft-question
#self-learning
#mathematical-physics
201
Views
If $\vec{\omega}\cdot\vec{n}=0$ for $t=0$ then it holds for all time
Published on
15 Apr 2026 - 15:49
#multivariable-calculus
#vector-analysis
#mathematical-physics
#fluid-dynamics
91
Views
Calculus rule $d(f+g)=df + dg$ and combined functions
Published on
16 Apr 2026 - 8:40
#multivariable-calculus
#functions
#physics
#mathematical-physics
107
Views
Flows that are multiples of vorticity are steady flows proof
Published on
15 Apr 2026 - 10:16
#vector-analysis
#mathematical-physics
#fluid-dynamics
40
Views
Velocity variation in the circular motion of a material point moving in counterclockwise motion
Published on
15 Apr 2026 - 23:36
#solution-verification
#physics
#mathematical-physics
88
Views
Trace norm of a complex $|B| \times|A|$ matrix $M$.
Published on
13 Apr 2026 - 18:11
#linear-algebra
#matrices
#normed-spaces
#mathematical-physics
#trace
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