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ckpts/universal/global_step80/zero/11.mlp.dense_h_to_4h.weight/fp32.pt

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ckpts/universal/global_step80/zero/28.final_rmsnorm.weight/exp_avg_sq.pt

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ckpts/universal/global_step80/zero/28.final_rmsnorm.weight/fp32.pt

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venv/lib/python3.10/site-packages/sympy/liealgebras/__init__.py

@@ -0,0 +1,3 @@
+from sympy.liealgebras.cartan_type import CartanType
+
+__all__ = ['CartanType']

venv/lib/python3.10/site-packages/sympy/liealgebras/cartan_matrix.py

@@ -0,0 +1,25 @@
+from .cartan_type import CartanType
+
+def CartanMatrix(ct):
+    """Access the Cartan matrix of a specific Lie algebra
+
+    Examples
+    ========
+
+    >>> from sympy.liealgebras.cartan_matrix import CartanMatrix
+    >>> CartanMatrix("A2")
+    Matrix([
+    [ 2, -1],
+    [-1,  2]])
+
+    >>> CartanMatrix(['C', 3])
+    Matrix([
+    [ 2, -1,  0],
+    [-1,  2, -1],
+    [ 0, -2,  2]])
+
+    This method works by returning the Cartan matrix
+    which corresponds to Cartan type t.
+    """
+
+    return CartanType(ct).cartan_matrix()

venv/lib/python3.10/site-packages/sympy/liealgebras/cartan_type.py

@@ -0,0 +1,73 @@
+from sympy.core import Atom, Basic
+
+
+class CartanType_generator():
+    """
+    Constructor for actually creating things
+    """
+    def __call__(self, *args):
+        c = args[0]
+        if isinstance(c, list):
+            letter, n = c[0], int(c[1])
+        elif isinstance(c, str):
+            letter, n = c[0], int(c[1:])
+        else:
+            raise TypeError("Argument must be a string (e.g. 'A3') or a list (e.g. ['A', 3])")
+
+        if n < 0:
+            raise ValueError("Lie algebra rank cannot be negative")
+        if letter == "A":
+            from . import type_a
+            return type_a.TypeA(n)
+        if letter == "B":
+            from . import type_b
+            return type_b.TypeB(n)
+
+        if letter == "C":
+            from . import type_c
+            return type_c.TypeC(n)
+
+        if letter == "D":
+            from . import type_d
+            return type_d.TypeD(n)
+
+        if letter == "E":
+            if n >= 6 and n <= 8:
+                from . import type_e
+                return type_e.TypeE(n)
+
+        if letter == "F":
+            if n == 4:
+                from . import type_f
+                return type_f.TypeF(n)
+
+        if letter == "G":
+            if n == 2:
+                from . import type_g
+                return type_g.TypeG(n)
+
+CartanType = CartanType_generator()
+
+
+class Standard_Cartan(Atom):
+    """
+    Concrete base class for Cartan types such as A4, etc
+    """
+
+    def __new__(cls, series, n):
+        obj = Basic.__new__(cls)
+        obj.n = n
+        obj.series = series
+        return obj
+
+    def rank(self):
+        """
+        Returns the rank of the Lie algebra
+        """
+        return self.n
+
+    def series(self):
+        """
+        Returns the type of the Lie algebra
+        """
+        return self.series

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_cartan_matrix.py

@@ -0,0 +1,10 @@
+from sympy.liealgebras.cartan_matrix import CartanMatrix
+from sympy.matrices import Matrix
+
+def test_CartanMatrix():
+    c = CartanMatrix("A3")
+    m = Matrix(3, 3, [2, -1, 0, -1, 2, -1, 0, -1, 2])
+    assert c == m
+    a = CartanMatrix(["G",2])
+    mt = Matrix(2, 2, [2, -1, -3, 2])
+    assert a == mt

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_cartan_type.py

@@ -0,0 +1,12 @@
+from sympy.liealgebras.cartan_type import CartanType, Standard_Cartan
+
+def test_Standard_Cartan():
+    c = CartanType("A4")
+    assert c.rank() == 4
+    assert c.series == "A"
+    m = Standard_Cartan("A", 2)
+    assert m.rank() == 2
+    assert m.series == "A"
+    b = CartanType("B12")
+    assert b.rank() == 12
+    assert b.series == "B"

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_dynkin_diagram.py

@@ -0,0 +1,9 @@
+from sympy.liealgebras.dynkin_diagram import DynkinDiagram
+
+def test_DynkinDiagram():
+    c = DynkinDiagram("A3")
+    diag = "0---0---0\n1   2   3"
+    assert c == diag
+    ct = DynkinDiagram(["B", 3])
+    diag2 = "0---0=>=0\n1   2   3"
+    assert ct == diag2

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_root_system.py

@@ -0,0 +1,18 @@
+from sympy.liealgebras.root_system import RootSystem
+from sympy.liealgebras.type_a import TypeA
+from sympy.matrices import Matrix
+
+def test_root_system():
+    c = RootSystem("A3")
+    assert c.cartan_type == TypeA(3)
+    assert c.simple_roots() ==  {1: [1, -1, 0, 0], 2: [0, 1, -1, 0], 3: [0, 0, 1, -1]}
+    assert c.root_space() == "alpha[1] + alpha[2] + alpha[3]"
+    assert c.cartan_matrix() == Matrix([[ 2, -1,  0], [-1,  2, -1], [ 0, -1,  2]])
+    assert c.dynkin_diagram() == "0---0---0\n1   2   3"
+    assert c.add_simple_roots(1, 2) == [1, 0, -1, 0]
+    assert c.all_roots() == {1: [1, -1, 0, 0], 2: [1, 0, -1, 0],
+            3: [1, 0, 0, -1], 4: [0, 1, -1, 0], 5: [0, 1, 0, -1],
+            6: [0, 0, 1, -1], 7: [-1, 1, 0, 0], 8: [-1, 0, 1, 0],
+            9: [-1, 0, 0, 1], 10: [0, -1, 1, 0],
+            11: [0, -1, 0, 1], 12: [0, 0, -1, 1]}
+    assert c.add_as_roots([1, 0, -1, 0], [0, 0, 1, -1]) == [1, 0, 0, -1]

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_type_A.py

@@ -0,0 +1,17 @@
+from sympy.liealgebras.cartan_type import CartanType
+from sympy.matrices import Matrix
+
+def test_type_A():
+    c = CartanType("A3")
+    m = Matrix(3, 3, [2, -1, 0, -1, 2, -1, 0, -1, 2])
+    assert m == c.cartan_matrix()
+    assert c.basis() == 8
+    assert c.roots() == 12
+    assert c.dimension() == 4
+    assert c.simple_root(1) == [1, -1, 0, 0]
+    assert c.highest_root() == [1, 0, 0, -1]
+    assert c.lie_algebra() == "su(4)"
+    diag = "0---0---0\n1   2   3"
+    assert c.dynkin_diagram() == diag
+    assert c.positive_roots() == {1: [1, -1, 0, 0], 2: [1, 0, -1, 0],
+            3: [1, 0, 0, -1], 4: [0, 1, -1, 0], 5: [0, 1, 0, -1], 6: [0, 0, 1, -1]}

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_type_B.py

@@ -0,0 +1,17 @@
+from sympy.liealgebras.cartan_type import CartanType
+from sympy.matrices import Matrix
+
+def test_type_B():
+    c = CartanType("B3")
+    m = Matrix(3, 3, [2, -1, 0, -1, 2, -2, 0, -1, 2])
+    assert m == c.cartan_matrix()
+    assert c.dimension() == 3
+    assert c.roots() == 18
+    assert c.simple_root(3) == [0, 0, 1]
+    assert c.basis() == 3
+    assert c.lie_algebra() == "so(6)"
+    diag = "0---0=>=0\n1   2   3"
+    assert c.dynkin_diagram() == diag
+    assert c.positive_roots() ==  {1: [1, -1, 0], 2: [1, 1, 0], 3: [1, 0, -1],
+            4: [1, 0, 1], 5: [0, 1, -1], 6: [0, 1, 1], 7: [1, 0, 0],
+            8: [0, 1, 0], 9: [0, 0, 1]}

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_type_C.py

@@ -0,0 +1,22 @@
+from sympy.liealgebras.cartan_type import CartanType
+from sympy.matrices import Matrix
+
+def test_type_C():
+    c = CartanType("C4")
+    m = Matrix(4, 4, [2, -1, 0, 0, -1, 2, -1, 0, 0, -1, 2, -1, 0, 0, -2, 2])
+    assert c.cartan_matrix() == m
+    assert c.dimension() == 4
+    assert c.simple_root(4) == [0, 0, 0, 2]
+    assert c.roots() == 32
+    assert c.basis() == 36
+    assert c.lie_algebra() == "sp(8)"
+    t = CartanType(['C', 3])
+    assert t.dimension() == 3
+    diag = "0---0---0=<=0\n1   2   3   4"
+    assert c.dynkin_diagram() == diag
+    assert c.positive_roots() == {1: [1, -1, 0, 0], 2: [1, 1, 0, 0],
+            3: [1, 0, -1, 0], 4: [1, 0, 1, 0], 5: [1, 0, 0, -1],
+            6: [1, 0, 0, 1], 7: [0, 1, -1, 0], 8: [0, 1, 1, 0],
+            9: [0, 1, 0, -1], 10: [0, 1, 0, 1], 11: [0, 0, 1, -1],
+            12: [0, 0, 1, 1], 13: [2, 0, 0, 0], 14: [0, 2, 0, 0], 15: [0, 0, 2, 0],
+            16: [0, 0, 0, 2]}

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_type_D.py

@@ -0,0 +1,19 @@
+from sympy.liealgebras.cartan_type import CartanType
+from sympy.matrices import Matrix
+
+
+
+def test_type_D():
+    c = CartanType("D4")
+    m = Matrix(4, 4, [2, -1, 0, 0, -1, 2, -1, -1, 0, -1, 2, 0, 0, -1, 0, 2])
+    assert c.cartan_matrix() == m
+    assert c.basis() == 6
+    assert c.lie_algebra() == "so(8)"
+    assert c.roots() == 24
+    assert c.simple_root(3) == [0, 0, 1, -1]
+    diag = "    3\n    0\n    |\n    |\n0---0---0\n1   2   4"
+    assert diag == c.dynkin_diagram()
+    assert c.positive_roots() == {1: [1, -1, 0, 0], 2: [1, 1, 0, 0],
+            3: [1, 0, -1, 0], 4: [1, 0, 1, 0], 5: [1, 0, 0, -1], 6: [1, 0, 0, 1],
+            7: [0, 1, -1, 0], 8: [0, 1, 1, 0], 9: [0, 1, 0, -1], 10: [0, 1, 0, 1],
+            11: [0, 0, 1, -1], 12: [0, 0, 1, 1]}

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_type_E.py

@@ -0,0 +1,19 @@
+from sympy.liealgebras.cartan_type import CartanType
+from sympy.matrices import Matrix
+
+def test_type_E():
+    c = CartanType("E6")
+    m = Matrix(6, 6, [2, 0, -1, 0, 0, 0, 0, 2, 0, -1, 0, 0,
+        -1, 0, 2, -1, 0, 0, 0, -1, -1, 2, -1, 0, 0, 0, 0,
+        -1, 2, -1, 0, 0, 0, 0, -1, 2])
+    assert c.cartan_matrix() == m
+    assert c.dimension() == 8
+    assert c.simple_root(6) == [0, 0, 0, -1, 1, 0, 0, 0]
+    assert c.roots() == 72
+    assert c.basis() == 78
+    diag = " "*8 + "2\n" + " "*8 + "0\n" + " "*8 + "|\n" + " "*8 + "|\n"
+    diag += "---".join("0" for i in range(1, 6))+"\n"
+    diag += "1   " + "   ".join(str(i) for i in range(3, 7))
+    assert c.dynkin_diagram() == diag
+    posroots = c.positive_roots()
+    assert posroots[8] == [1, 0, 0, 0, 1, 0, 0, 0]

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_type_F.py

@@ -0,0 +1,24 @@
+from sympy.liealgebras.cartan_type import CartanType
+from sympy.matrices import Matrix
+from sympy.core.backend import S
+
+def test_type_F():
+    c = CartanType("F4")
+    m = Matrix(4, 4, [2, -1, 0, 0, -1, 2, -2, 0, 0, -1, 2, -1, 0, 0, -1, 2])
+    assert c.cartan_matrix() == m
+    assert c.dimension() == 4
+    assert c.simple_root(1) == [1, -1, 0, 0]
+    assert c.simple_root(2) == [0, 1, -1, 0]
+    assert c.simple_root(3) == [0, 0, 0, 1]
+    assert c.simple_root(4) == [-S.Half, -S.Half, -S.Half, -S.Half]
+    assert c.roots() == 48
+    assert c.basis() == 52
+    diag = "0---0=>=0---0\n" + "   ".join(str(i) for i in range(1, 5))
+    assert c.dynkin_diagram() == diag
+    assert c.positive_roots() == {1: [1, -1, 0, 0], 2: [1, 1, 0, 0], 3: [1, 0, -1, 0],
+            4: [1, 0, 1, 0], 5: [1, 0, 0, -1], 6: [1, 0, 0, 1], 7: [0, 1, -1, 0],
+            8: [0, 1, 1, 0], 9: [0, 1, 0, -1], 10: [0, 1, 0, 1], 11: [0, 0, 1, -1],
+            12: [0, 0, 1, 1], 13: [1, 0, 0, 0], 14: [0, 1, 0, 0], 15: [0, 0, 1, 0],
+            16: [0, 0, 0, 1], 17: [S.Half, S.Half, S.Half, S.Half], 18: [S.Half, -S.Half, S.Half, S.Half],
+            19: [S.Half, S.Half, -S.Half, S.Half], 20: [S.Half, S.Half, S.Half, -S.Half], 21: [S.Half, S.Half, -S.Half, -S.Half],
+            22: [S.Half, -S.Half, S.Half, -S.Half], 23: [S.Half, -S.Half, -S.Half, S.Half], 24: [S.Half, -S.Half, -S.Half, -S.Half]}

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_type_G.py

@@ -0,0 +1,16 @@
+# coding=utf-8
+from sympy.liealgebras.cartan_type import CartanType
+from sympy.matrices import Matrix
+
+def test_type_G():
+    c = CartanType("G2")
+    m = Matrix(2, 2, [2, -1, -3, 2])
+    assert c.cartan_matrix() == m
+    assert c.simple_root(2) == [1, -2, 1]
+    assert c.basis() == 14
+    assert c.roots() == 12
+    assert c.dimension() == 3
+    diag = "0≡<≡0\n1   2"
+    assert diag == c.dynkin_diagram()
+    assert c.positive_roots() == {1: [0, 1, -1], 2: [1, -2, 1], 3: [1, -1, 0],
+            4: [1, 0, 1], 5: [1, 1, -2], 6: [2, -1, -1]}

venv/lib/python3.10/site-packages/sympy/liealgebras/tests/test_weyl_group.py

@@ -0,0 +1,35 @@
+from sympy.liealgebras.weyl_group import WeylGroup
+from sympy.matrices import Matrix
+
+def test_weyl_group():
+    c = WeylGroup("A3")
+    assert c.matrix_form('r1*r2') == Matrix([[0, 0, 1, 0], [1, 0, 0, 0],
+        [0, 1, 0, 0], [0, 0, 0, 1]])
+    assert c.generators() == ['r1', 'r2', 'r3']
+    assert c.group_order() == 24.0
+    assert c.group_name() == "S4: the symmetric group acting on 4 elements."
+    assert c.coxeter_diagram() == "0---0---0\n1   2   3"
+    assert c.element_order('r1*r2*r3') == 4
+    assert c.element_order('r1*r3*r2*r3') == 3
+    d = WeylGroup("B5")
+    assert d.group_order() == 3840
+    assert d.element_order('r1*r2*r4*r5') == 12
+    assert d.matrix_form('r2*r3') ==  Matrix([[0, 0, 1, 0, 0], [1, 0, 0, 0, 0],
+        [0, 1, 0, 0, 0], [0, 0, 0, 1, 0], [0, 0, 0, 0, 1]])
+    assert d.element_order('r1*r2*r1*r3*r5') == 6
+    e = WeylGroup("D5")
+    assert e.element_order('r2*r3*r5') == 4
+    assert e.matrix_form('r2*r3*r5') == Matrix([[1, 0, 0, 0, 0], [0, 0, 0, 0, -1],
+        [0, 1, 0, 0, 0], [0, 0, 1, 0, 0], [0, 0, 0, -1, 0]])
+    f = WeylGroup("G2")
+    assert f.element_order('r1*r2*r1*r2') == 3
+    assert f.element_order('r2*r1*r1*r2') == 1
+
+    assert f.matrix_form('r1*r2*r1*r2') == Matrix([[0, 1, 0], [0, 0, 1], [1, 0, 0]])
+    g = WeylGroup("F4")
+    assert g.matrix_form('r2*r3') == Matrix([[1, 0, 0, 0], [0, 1, 0, 0],
+        [0, 0, 0, -1], [0, 0, 1, 0]])
+
+    assert g.element_order('r2*r3') == 4
+    h = WeylGroup("E6")
+    assert h.group_order() == 51840

venv/lib/python3.10/site-packages/sympy/liealgebras/type_b.py

@@ -0,0 +1,172 @@
+from .cartan_type import Standard_Cartan
+from sympy.core.backend import eye
+
+class TypeB(Standard_Cartan):
+
+    def __new__(cls, n):
+        if n < 2:
+            raise ValueError("n cannot be less than 2")
+        return Standard_Cartan.__new__(cls, "B", n)
+
+    def dimension(self):
+        """Dimension of the vector space V underlying the Lie algebra
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("B3")
+        >>> c.dimension()
+        3
+        """
+
+        return self.n
+
+    def basic_root(self, i, j):
+        """
+        This is a method just to generate roots
+        with a 1 iin the ith position and a -1
+        in the jth position.
+
+        """
+        root = [0]*self.n
+        root[i] = 1
+        root[j] = -1
+        return root
+
+    def simple_root(self, i):
+        """
+        Every lie algebra has a unique root system.
+        Given a root system Q, there is a subset of the
+        roots such that an element of Q is called a
+        simple root if it cannot be written as the sum
+        of two elements in Q.  If we let D denote the
+        set of simple roots, then it is clear that every
+        element of Q can be written as a linear combination
+        of elements of D with all coefficients non-negative.
+
+        In B_n the first n-1 simple roots are the same as the
+        roots in A_(n-1) (a 1 in the ith position, a -1 in
+        the (i+1)th position, and zeroes elsewhere).  The n-th
+        simple root is the root with a 1 in the nth position
+        and zeroes elsewhere.
+
+        This method returns the ith simple root for the B series.
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("B3")
+        >>> c.simple_root(2)
+        [0, 1, -1]
+
+        """
+        n = self.n
+        if i < n:
+            return self.basic_root(i-1, i)
+        else:
+            root = [0]*self.n
+            root[n-1] = 1
+            return root
+
+    def positive_roots(self):
+        """
+        This method generates all the positive roots of
+        A_n.  This is half of all of the roots of B_n;
+        by multiplying all the positive roots by -1 we
+        get the negative roots.
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("A3")
+        >>> c.positive_roots()
+        {1: [1, -1, 0, 0], 2: [1, 0, -1, 0], 3: [1, 0, 0, -1], 4: [0, 1, -1, 0],
+                5: [0, 1, 0, -1], 6: [0, 0, 1, -1]}
+        """
+
+        n = self.n
+        posroots = {}
+        k = 0
+        for i in range(0, n-1):
+            for j in range(i+1, n):
+               k += 1
+               posroots[k] = self.basic_root(i, j)
+               k += 1
+               root = self.basic_root(i, j)
+               root[j] = 1
+               posroots[k] = root
+
+        for i in range(0, n):
+            k += 1
+            root = [0]*n
+            root[i] = 1
+            posroots[k] = root
+
+        return posroots
+
+    def roots(self):
+        """
+        Returns the total number of roots for B_n"
+        """
+
+        n = self.n
+        return 2*(n**2)
+
+    def cartan_matrix(self):
+        """
+        Returns the Cartan matrix for B_n.
+        The Cartan matrix matrix for a Lie algebra is
+        generated by assigning an ordering to the simple
+        roots, (alpha[1], ...., alpha[l]).  Then the ijth
+        entry of the Cartan matrix is (<alpha[i],alpha[j]>).
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType('B4')
+        >>> c.cartan_matrix()
+        Matrix([
+        [ 2, -1,  0,  0],
+        [-1,  2, -1,  0],
+        [ 0, -1,  2, -2],
+        [ 0,  0, -1,  2]])
+
+        """
+
+        n = self.n
+        m = 2* eye(n)
+        i = 1
+        while i < n-1:
+            m[i, i+1] = -1
+            m[i, i-1] = -1
+            i += 1
+        m[0, 1] = -1
+        m[n-2, n-1] = -2
+        m[n-1, n-2] = -1
+        return m
+
+    def basis(self):
+        """
+        Returns the number of independent generators of B_n
+        """
+
+        n = self.n
+        return (n**2 - n)/2
+
+    def lie_algebra(self):
+        """
+        Returns the Lie algebra associated with B_n
+        """
+
+        n = self.n
+        return "so(" + str(2*n) + ")"
+
+    def dynkin_diagram(self):
+        n = self.n
+        diag = "---".join("0" for i in range(1, n)) + "=>=0\n"
+        diag += "   ".join(str(i) for i in range(1, n+1))
+        return diag

venv/lib/python3.10/site-packages/sympy/liealgebras/type_c.py

@@ -0,0 +1,171 @@
+from .cartan_type import Standard_Cartan
+from sympy.core.backend import eye
+
+class TypeC(Standard_Cartan):
+
+    def __new__(cls, n):
+        if n < 3:
+            raise ValueError("n cannot be less than 3")
+        return Standard_Cartan.__new__(cls, "C", n)
+
+
+    def dimension(self):
+        """Dimension of the vector space V underlying the Lie algebra
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("C3")
+        >>> c.dimension()
+        3
+        """
+        n = self.n
+        return n
+
+    def basic_root(self, i, j):
+        """Generate roots with 1 in ith position and a -1 in jth position
+        """
+        n = self.n
+        root = [0]*n
+        root[i] = 1
+        root[j] = -1
+        return root
+
+    def simple_root(self, i):
+        """The ith simple root for the C series
+
+        Every lie algebra has a unique root system.
+        Given a root system Q, there is a subset of the
+        roots such that an element of Q is called a
+        simple root if it cannot be written as the sum
+        of two elements in Q.  If we let D denote the
+        set of simple roots, then it is clear that every
+        element of Q can be written as a linear combination
+        of elements of D with all coefficients non-negative.
+
+        In C_n, the first n-1 simple roots are the same as
+        the roots in A_(n-1) (a 1 in the ith position, a -1
+        in the (i+1)th position, and zeroes elsewhere).  The
+        nth simple root is the root in which there is a 2 in
+        the nth position and zeroes elsewhere.
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("C3")
+        >>> c.simple_root(2)
+        [0, 1, -1]
+
+        """
+
+        n = self.n
+        if i < n:
+            return self.basic_root(i-1,i)
+        else:
+            root = [0]*self.n
+            root[n-1] = 2
+            return root
+
+
+    def positive_roots(self):
+        """Generates all the positive roots of A_n
+
+        This is half of all of the roots of C_n; by multiplying all the
+        positive roots by -1 we get the negative roots.
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("A3")
+        >>> c.positive_roots()
+        {1: [1, -1, 0, 0], 2: [1, 0, -1, 0], 3: [1, 0, 0, -1], 4: [0, 1, -1, 0],
+                5: [0, 1, 0, -1], 6: [0, 0, 1, -1]}
+
+        """
+
+        n = self.n
+        posroots = {}
+        k = 0
+        for i in range(0, n-1):
+            for j in range(i+1, n):
+               k += 1
+               posroots[k] = self.basic_root(i, j)
+               k += 1
+               root = self.basic_root(i, j)
+               root[j] = 1
+               posroots[k] = root
+
+        for i in range(0, n):
+            k += 1
+            root = [0]*n
+            root[i] = 2
+            posroots[k] = root
+
+        return posroots
+
+    def roots(self):
+        """
+        Returns the total number of roots for C_n"
+        """
+
+        n = self.n
+        return 2*(n**2)
+
+    def cartan_matrix(self):
+        """The Cartan matrix for C_n
+
+        The Cartan matrix matrix for a Lie algebra is
+        generated by assigning an ordering to the simple
+        roots, (alpha[1], ...., alpha[l]).  Then the ijth
+        entry of the Cartan matrix is (<alpha[i],alpha[j]>).
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType('C4')
+        >>> c.cartan_matrix()
+        Matrix([
+        [ 2, -1,  0,  0],
+        [-1,  2, -1,  0],
+        [ 0, -1,  2, -1],
+        [ 0,  0, -2,  2]])
+
+        """
+
+        n = self.n
+        m = 2 * eye(n)
+        i = 1
+        while i < n-1:
+           m[i, i+1] = -1
+           m[i, i-1] = -1
+           i += 1
+        m[0,1] = -1
+        m[n-1, n-2] = -2
+        return m
+
+
+    def basis(self):
+        """
+        Returns the number of independent generators of C_n
+        """
+
+        n = self.n
+        return n*(2*n + 1)
+
+    def lie_algebra(self):
+        """
+        Returns the Lie algebra associated with C_n"
+        """
+
+        n = self.n
+        return "sp(" + str(2*n) + ")"
+
+    def dynkin_diagram(self):
+        n = self.n
+        diag = "---".join("0" for i in range(1, n)) + "=<=0\n"
+        diag += "   ".join(str(i) for i in range(1, n+1))
+        return diag

venv/lib/python3.10/site-packages/sympy/liealgebras/type_d.py

@@ -0,0 +1,175 @@
+from .cartan_type import Standard_Cartan
+from sympy.core.backend import eye
+
+class TypeD(Standard_Cartan):
+
+    def __new__(cls, n):
+        if n < 3:
+            raise ValueError("n cannot be less than 3")
+        return Standard_Cartan.__new__(cls, "D", n)
+
+
+    def dimension(self):
+        """Dmension of the vector space V underlying the Lie algebra
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("D4")
+        >>> c.dimension()
+        4
+        """
+
+        return self.n
+
+    def basic_root(self, i, j):
+        """
+        This is a method just to generate roots
+        with a 1 iin the ith position and a -1
+        in the jth position.
+
+        """
+
+        n = self.n
+        root = [0]*n
+        root[i] = 1
+        root[j] = -1
+        return root
+
+    def simple_root(self, i):
+        """
+        Every lie algebra has a unique root system.
+        Given a root system Q, there is a subset of the
+        roots such that an element of Q is called a
+        simple root if it cannot be written as the sum
+        of two elements in Q.  If we let D denote the
+        set of simple roots, then it is clear that every
+        element of Q can be written as a linear combination
+        of elements of D with all coefficients non-negative.
+
+        In D_n, the first n-1 simple roots are the same as
+        the roots in A_(n-1) (a 1 in the ith position, a -1
+        in the (i+1)th position, and zeroes elsewhere).
+        The nth simple root is the root in which there 1s in
+        the nth and (n-1)th positions, and zeroes elsewhere.
+
+        This method returns the ith simple root for the D series.
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("D4")
+        >>> c.simple_root(2)
+        [0, 1, -1, 0]
+
+        """
+
+        n = self.n
+        if i < n:
+            return self.basic_root(i-1, i)
+        else:
+            root = [0]*n
+            root[n-2] = 1
+            root[n-1] = 1
+            return root
+
+
+    def positive_roots(self):
+        """
+        This method generates all the positive roots of
+        A_n.  This is half of all of the roots of D_n
+        by multiplying all the positive roots by -1 we
+        get the negative roots.
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType("A3")
+        >>> c.positive_roots()
+        {1: [1, -1, 0, 0], 2: [1, 0, -1, 0], 3: [1, 0, 0, -1], 4: [0, 1, -1, 0],
+                5: [0, 1, 0, -1], 6: [0, 0, 1, -1]}
+        """
+
+        n = self.n
+        posroots = {}
+        k = 0
+        for i in range(0, n-1):
+            for j in range(i+1, n):
+               k += 1
+               posroots[k] = self.basic_root(i, j)
+               k += 1
+               root = self.basic_root(i, j)
+               root[j] = 1
+               posroots[k] = root
+        return posroots
+
+    def roots(self):
+        """
+        Returns the total number of roots for D_n"
+        """
+
+        n = self.n
+        return 2*n*(n-1)
+
+    def cartan_matrix(self):
+        """
+        Returns the Cartan matrix for D_n.
+        The Cartan matrix matrix for a Lie algebra is
+        generated by assigning an ordering to the simple
+        roots, (alpha[1], ...., alpha[l]).  Then the ijth
+        entry of the Cartan matrix is (<alpha[i],alpha[j]>).
+
+        Examples
+        ========
+
+        >>> from sympy.liealgebras.cartan_type import CartanType
+        >>> c = CartanType('D4')
+        >>> c.cartan_matrix()
+            Matrix([
+            [ 2, -1,  0,  0],
+            [-1,  2, -1, -1],
+            [ 0, -1,  2,  0],
+            [ 0, -1,  0,  2]])
+
+        """
+
+        n = self.n
+        m = 2*eye(n)
+        i = 1
+        while i < n-2:
+           m[i,i+1] = -1
+           m[i,i-1] = -1
+           i += 1
+        m[n-2, n-3] = -1
+        m[n-3, n-1] = -1
+        m[n-1, n-3] = -1
+        m[0, 1] = -1
+        return m
+
+    def basis(self):
+        """
+        Returns the number of independent generators of D_n
+        """
+        n = self.n
+        return n*(n-1)/2
+
+    def lie_algebra(self):
+        """
+        Returns the Lie algebra associated with D_n"
+        """
+
+        n = self.n
+        return "so(" + str(2*n) + ")"
+
+    def dynkin_diagram(self):
+        n = self.n
+        diag = " "*4*(n-3) + str(n-1) + "\n"
+        diag += " "*4*(n-3) + "0\n"
+        diag += " "*4*(n-3) +"|\n"
+        diag += " "*4*(n-3) + "|\n"
+        diag += "---".join("0" for i in range(1,n)) + "\n"
+        diag += "   ".join(str(i) for i in range(1, n-1)) + "   "+str(n)
+        return diag